200909211 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種包裝用薄膜，尤其具有防霧性，並 且平滑性、抗結塊性及透明性爲良好的，關於適合於包裝 由蔬菜、根菜、果實、花草、花木、蘑菇類、魚、肉等要 求高鮮度之植物或動物類而成的生鮮食品（以下，將此等 稱爲生鮮食品）之薄膜。 【先前技術】 由聚烯烴系樹脂所構成的薄膜係廣泛使用作爲以食品 爲主之各種物品包裝用基材。尤其，由於聚丙烯薄膜具優 異的機械特性、透明性、光澤等光學性質、氣阻性、無臭 性等食品衛生性等，以食品包裝用領域爲中心廣泛被使 用。然而，聚丙烯系樹脂薄膜係具有下列之缺點：抗結塊 性差；一旦重疊薄膜時，容易引起薄膜相互緊貼之現象（所 謂結塊現象），明顯降低包裝等之作業性。 因此，防止聚丙烯系樹脂薄膜結塊之方法，被承認的 有：於薄膜中摻合所謂的抗結塊劑的方法，其中該抗結塊 劑係一種二氧化矽所代表之無機系微粉末或交聯高分子等 有機系微粒；或合倂脂肪酸醯胺等潤滑劑後而摻合的方法。 另外，也可以使用如下之方法：將具備高防霧性之聚 丙烯系樹脂薄膜予以製袋加工之際，將以聚烯烴系樹脂爲 主體之密合層積層於以聚丙烯系樹脂薄膜爲主體之基層的 表面上。另外，如此方式’將由聚烯烴系樹脂所構成的密 合層積層於由丙烯系樹脂所構成的基層上之情形，使所加 200909211 工之袋子顯現足夠強度之方式’大多將低熔點之聚烯烴系 樹脂作爲密合層形成用之樹脂使用，如此方式，丨吏用低ι溶 點之聚烯烴系樹脂成爲使薄膜之平滑或結塊性予以進—步 惡化之要因。消除如此不當之方法’有人提案將既定粒徑 之有機聚合物微粒與無機系微粒等之惰性微粉添加於·密合 層形成用樹脂中的方法（專利文獻1 )。 專利文獻1 :日本專利特開2003-237827號公報 另一方面，聚丙烯樹脂係利用習知之所謂溶劑法，其 係藉由於三氯化鈦-有機鋁化合物等活性不太高之催化劑 存在下，聚合丙烯所得到的，聚烯烴聚合催化劑之改良將 提昇，數種高活性催化劑已被開發，其結果，利用所謂的 氣相法，使其能夠更廉價且有效地得到聚丙烯樹脂。然而， 利用該氣相法，使用更高活性催化劑所得的聚丙烯樹脂係 起因於平均粒徑爲大的、粒徑分布爲窄的、微粉含量爲少 的，爲了製造如專利文獻1之聚丙烯系樹脂薄膜而將無機 系微粒添加於樹脂中時，具有使其無機系微粒的分散性惡 化之不當情形。 因此，爲了解決如此之不當情形，已開發出藉由利用 具有既定大小之粒徑及表觀比重之無機系微粒，而使利用 氣相法所得的聚丙烯系樹脂中之無機系微粒分散性得以提 高的技術（專利文獻2 )。 專利文獻2 :日本專利特開平8-81591號公報 【發明內容】 200909211 發明所飲解決之抟術問顆 然而，於專利文獻2之方法中，受限於能夠 機系微粒具有較大之粒徑、表觀比重爲大的、細孔 因而，由於未必能夠得到具優越抗結塊性之聚丙 薄膜，且無法發現良好之平滑性，將薄膜捲取成匱 在薄膜圓筒中容易產生皺摺。另外，如此方式， 生皴摺之薄膜圓筒以進行製袋加工或印刷加工時 將變高》 本發明之目的在於提供一種聚丙烯系樹脂薄 該習知聚丙烯系樹脂薄膜中之問題點，其係由 法、廉價且有效率所製造之聚丙烯系樹脂所構成 越之抗結塊性、平滑性爲良好的，於捲取成圓筒 薄膜圓筒中難以發生皺摺，於製袋加工時或印刷 加工性良好。另外，也在於提供一種能夠廉價且 造如此聚丙烯系樹脂薄膜的製法。 解決問顆之技術丰段 如此之本發明中，於申請專利範圍第1項所 明構造係一種聚丙烯系樹脂積層薄膜，其係在以 樹脂爲主體之基層的表裏兩面上積層以聚烯烴系 體之密合層，厚度爲l〇//m以上、小於70//m， 度値爲0.4%以上、5.0%以下； 該聚丙烯系樹脂積層薄膜之特徵爲：構成基 層之聚丙烯系樹脂係利用氣相法所形成的，並且 利用的無 ,容積小。 烯系樹脂 丨筒狀時， 若使用產 ，不良率 膜，解決 利用氣相 的，具優 狀時，在 加工時之 有效率製 揭不之發 聚丙烯系 樹脂爲主 並且，霧 層與密合 ，符合下 200909211 式（1 ) 、（ 2 ): (1 ) 40°C之氣體環境中測出的動摩擦係數（以下，稱 爲VH40)爲0.2以上、1.1以下；及 (2)重疊2片薄膜後而進行減壓時’空氣從薄膜間漏 光爲止之時間的氣漏指數（以下’稱爲AR )爲1 . 8秒以上、 1 0.0秒以下。 於申請專利範圍第2項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，至少基層係經雙軸拉伸。 於申請專利範圍第3項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，於積層薄膜所有薄層中 含有15mg/kg以上、少於150mg/kg之A1。 於申請專利範圍第4項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，基層係由丙烯-乙烯共聚 物所形成的，於該丙烯-乙烯共聚物中之乙烯含量爲0.5重 量％以上、少於1.5重量％。 於申請專利範圍第5項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，相對於積層薄膜之所有 薄層，密合層厚度的比率爲1/60〜1/3。 於申請專利範圍第6項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，於基層與密合層中已添 加防霧劑。 於申請專利範圍第7項所揭示之發明構造係於揭示於 如申請專利範圍第6項之發明中，於覆蓋裝有5(rc溫水之 200909211 容器開口部的狀態下，於5C之氣體環境中放置30分鐘之 後，於室溫之氣體環境中取出後的露水附著面積爲整體之 1/4以下。 於申請專利範圍第8項所揭不之發明構造係於揭示於 如申請專利範圍第1項之發明中’使用將刀尖角度調整成 60度、將刀尖設定溫度調整成3 90 °C之熔斷密合機，利用 刀尖溫度370 °C、120袋/分鐘之射出速度以作成薄膜的熔 斷密合袋時之不良率爲5%以下。 於申請專利範圍第9項所揭示之發明構造係於揭示於 如申請專利範圍第1項之發明中，於140°C、施加lkg/cm2 之壓力1秒鐘後而使密合層彼此予以熱熔接之後，使此等 熱熔接部分予以180度剝離時之強度爲1.5N/1 5 mm以上、 6.0N/15mm 以下。 於申請專利範圍第1 〇項所揭示之發明構造係於揭示 於如申請專利範圍第1項之發明中，密合層表面之潤濕張 力爲35mN/m以上、45mN/m以下。 於申請專利範圍第1 1項所揭示之發明構造係於揭示 於如申請專利範圍第1項之發明中，形成密合層之樹脂係 將熔融流動速率調整成1.5g/10分鐘以上至9.0g/10分鐘之 物，或是此等樹脂之混合物。 於申請專利範圍第1 2項所揭示之發明構造係於揭示 於如申請專利範圍第1項之發明中，於形成密合層之聚烯 烴系樹脂層中，已添加平均粒徑爲l.〇；am以上、小於 200909211 12.0 系微 於如 乙烷 脂肪 於如 之防 造如 法， 擠出 系樹 未拉 軸拉 徵係 造粒 粒後 的同 量％ Μ m，且細孔容積爲1.0ml/g以上 '低於2_0mWS之無機 粒。 於申請專利範圍第1 3項所揭示之發明構造係於揭示 申請專利範圍第6項之發明中’防霧劑係倂用聚環氧 烷胺型防霧劑、聚環氧乙烷烷胺脂肪酸酯型防霧劑、 酸甘油酯型防霧劑中之至少2種以上。 於申請專利範圍第1 4項所揭示之發明構造係於揭示 申請專利範圍第6項之發明中，積層薄膜所有薄層中 霧劑量爲0.2重量％以上、少於1.5重量％。 於申請專利範圍第1 5項所揭示之發明構造係爲了製 申請專利範圍第1項之聚丙烯系樹脂積層薄膜之製 其包含：藉由從複數台擠出機，利用共擠出法以熔融 聚丙烯系樹脂與聚烯烴系樹脂，形成未拉伸之聚丙烯 脂積層薄片的薄膜化步驟；將該薄膜化步驟所得到的 伸之聚丙烯系樹脂積層薄片，沿著縱向與橫向進行雙 伸的雙軸拉伸步驟；該聚丙烯系樹脂薄膜之製法的特 符合下列要件（a)〜（c): (a) 該薄膜化步驟係根據添加無機系微粒而進行1次 後之丙烯-乙烯共聚物、添加無機系微粒而進行2次造 之丙烯-乙烯共聚物與聚丙烯系樹脂以形成密合層； (b) 該薄膜化步驟係由丙烯-乙烯共聚物以形成基層 時，將該丙烯-乙烯共聚物中之乙烯含量調整成0.5重 以上、少於1.5重量％ ;及 -10- 200909211 (c )該雙軸拉伸步驟係於沿著縱向與橫向雙軸拉伸後 進行熱固定的同時，將該熱固定之溫度調整成1601以上、 低於170°C。 於申請專利範圍第1 6項所揭示之發明構造係於揭示 於如申請專利範圍第1 5項之發明中，藉由以1 〇〇rpm以上、 5OOrpm以下之轉速予以旋轉的旋轉物而進行該薄膜化步驟 中之造粒。 於申請專利範圍第1 7項所揭示之發明構造係一種聚 丙烯系樹脂積層薄膜’其係在以聚丙烯系樹脂爲主體之基 層的表裏兩面上積層以聚烯烴系樹脂爲主體之密合層，厚 度爲10/zm以上、小於70"m，並且，霧度値爲0.4%以上、 5.0 %以下；構成基層與密合層之聚丙烯系樹脂係利用氣相 法予以形成的同時，藉由使從第1擠出機所熔融擠出之基 層形成用樹脂與從第2擠出機所熔融擠出之密合層形成用 樹脂予以積層於T模頭內，於製作已積層基層與較該基層 寬度爲窄之密合層的未拉伸積層樹脂薄片後，藉由進行該 所製作的未拉伸樹脂積層薄片之雙軸拉伸所形成的； 該聚丙烯系樹脂積層薄膜之特徵係符合下式（1)、（2): (1 ) 40 °C之氣體環境中測出之動摩擦係數爲0.2以 上、1. 1以下；及 (2 )重疊2片薄膜後而進行減壓時，空氣從薄膜間漏 光爲止時間的氣漏指數爲1. 8秒以上、1 0.0秒以下。 -11 - 200909211 於申請專利範圍第1 8項所揭示之發明構造係於揭示 於如申請專利範圍第1 7項之發明中’該τ模頭係利用將隔 離件組裝於密合層形成用樹脂之通過部分左右兩端邊緣的 T模頭。 [發明之效果] 由於本發明之聚丙燃系樹脂積層薄膜能夠利用根據氣 相法所得的聚丙烯系樹脂而加以製造，能夠廉價且有效率 「 加以製造。另外，具優越之抗結塊劑，平滑性爲良好的， 捲取成圓筒狀時，在薄膜圓筒中難以產生皴摺，製袋加工 時或印刷加工時中之加工性爲良好的。再者，由於所添加 之防霧劑容易滲出表面，具優越之防霧性，並且也具優越 之透明性。因而，本發明之聚丙烯系樹脂積層薄膜能夠適 用於蔬菜等生鮮食品之包裝用途。 另一方面，若根據本發明之聚丙烯系樹脂積層薄膜之 ί / 製法，如上所述，便能夠廉價且有效率地製造具優越之防 霧性、透明性爲高的、製袋加工時或印刷加工時之加工性 良好的聚丙烯系樹脂積層薄膜。 【實施方式】 [發明之實施形態] 於本發明之聚丙烯系樹脂積層薄膜中，主要用於基層 形成之聚丙烯系樹脂，可列舉：使用以鋁、鎂、鈦與鹵素 作爲必要成分之固體催化劑成分、由有機鋁化合物成分與 -12- 200909211 電子授予性化合物成分所構成的催化劑，實質上無液狀介 質之存在下利用氣相聚合所得的聚丙燦系樹脂。 另外，適合於形成本發明之聚丙烯系樹脂積層薄膜的 密合層（熱密合層）之聚烯烴系樹脂’其係由具有熔點較 形成基層之聚丙烯系樹脂熔點爲低之聚烯烴系樹脂所構成 的，例如，乙烯-1 - 丁烯共聚物、乙烯-丙烯-1· 丁烯共聚物、 乙烯-丙烯酸共聚物、利用金屬離子交聯乙烯-丙烯酸共聚 物的離子鍵聚合物、聚丙烯、聚-1-丁烯、丁烯-乙烯共聚物、 丙烯-乙烯共聚物、丙烯-1-丁儲共聚物、丙烯-乙烯-1· 丁烯 共聚物、丙烯-戊烯共聚物等一種或二種以上。其中，較宜 爲丙烯與乙烯及碳數4以上之α-烯烴的無規共聚物，使熔 點成爲140t以下之方式來摻合的樹脂，能夠於不損害薄膜 特性之範圍內使用聚酯系樹脂、聚醯胺系樹脂、聚碳酸酯 系樹脂等。另外，也能夠任意摻合紫外線吸收劑、抗氧化 劑、抗靜電劑等。另外，考量經濟性，樹脂之聚合法可列 舉··相同於基層使用的樹脂之方式，利用氣相聚合所進行 之方法。 本發明之聚丙烯系樹脂積層薄膜，其密合層表面具有 防霧性爲必要的。亦即，如本發明聚丙烯系樹脂積層薄膜 用於包裝用途的薄膜之情形下，防止包裝物內面之模糊現 象，不僅提高商品價値，於防止因隨著模糊之惡化所形成 的水滴而導致的包裝物內容物之水腐敗上，也爲極重要之 特性。如此方式，使密合層表面上顯現防霧性之方法能夠 -13- 200909211 適用於保存期間或流通期間，使防霧劑表露（滲出）於接 觸生鮮食品側之密合層表面。另外，如此方式，爲了於保 存期間或流通期間中’使防霧劑滲出於密合層表面，能夠 採用於薄膜製造時（原料樹脂之熔融擠出時），預先將防 霧劑摻合於形成基層之樹脂、形成密合層之樹脂中至少一 種的方法，如此方式’若採用於原料樹脂之熔融擠出時， 相較於將防霧劑塗布於薄膜表面之方法，因爲將防霧劑摻 合於基層形成樹脂中或密合層形成樹脂中的方法時，能夠 於如隨著冷暖氣溫變化之流通期間，穩定而持續發揮防霧 性。 另外，採用於原料樹脂之熔融擠出時，將防霧劑摻合 於基層形成樹脂中或密合層形成樹脂中的方法之情形下， 若將防霧劑摻合於基層形成樹脂及密合層形成樹脂二者之 中的話，經歷長期間，防霧劑順利滲出將持續而較佳。還 有，僅將防霧劑摻入基層形成樹脂中之情形下，因爲於保 存期間或流動期間中，基層形成樹脂中之防霧劑將透過密 合層而依序滲出密合層表面，使密合層表面漸漸成爲具有 防霧性之方式。再加上於流通過程中，爲了使具長期優越 之防霧性得以連續，藉由防止根據包裝物內容物之作用所 發生的模糊，即使表面之防霧劑被洗去，內部之防霧劑也 將快速有效且持續地一個一個滲出密合層表面，密合層表 面成爲具有防霧性之狀態爲必要的。因而，於本發明中之 防霧特性的設定時，較宜考量表面防霧劑拭去後之再發現 -14- 200909211 性。 於本發明中所使用之防霧劑，適宜倂用聚環氧乙烷烷 胺型、聚環氧乙烷烷胺脂肪酸酯型' 脂肪酸甘油酯型’聚 環氧乙烷烷胺型可列舉：聚環氧乙烷月桂胺、聚環氧乙烷 牛脂胺、聚環氧乙烷硬脂醯胺、聚環氧乙烷油胺、聚環氧 乙烷牛脂伸丙二胺、聚環氧乙烷硬脂醯伸丙二胺、聚環氧 乙烷-N-環己胺、聚環氧乙烷間二甲苯二胺。另外，聚環氧 乙烷烷胺脂肪酸酯型之代表例，可列舉：該聚環氧乙烷烷 胺型之代表例與下列所示之脂肪酸進行酯鍵結者。可列 舉：硬脂酸、山嵛酸、月桂酸、油酸、棕櫚酸、椰子脂肪 酸、牛脂脂肪酸、菜籽脂肪酸、蓖麻脂肪酸、肉豆蔻酸。 再者，脂肪酸甘油酯型可列舉：肉豆蔻酸一甘油酯、一硬 脂酸一甘油酯、一異硬脂酸一甘油酯、一油酸一甘油酯、 一橄欖油一甘油酯、二油酸一甘油酯、二硬脂酸一甘油酯、 一十一碳烯酸一甘油酯等。 另外，除了該3種防霧劑之外，也可以添加其他之防 霧劑，如此之防霧劑可列舉：一硬脂酸二甘油酯、一異硬 脂酸二甘油酯、一油酸二甘油酯、二油酸二甘油酯、三異 硬脂酸二甘油酯等所代表之聚甘油脂肪酸酯型等。 於本發明中，發揮防霧性之適宜防霧劑量，合倂薄膜 之內部與外面，防霧劑適宜存在於0.2〜1.5重量％之範 圍，較宜爲0·3〜1.2重量％之範圍，更佳爲0.5〜1.0重量 %之範圍。若防霧劑量少於0.2重量％時，由於未發揮充 -15- 200909211 分之防霧效果而不佳，相反的，若防霧劑之量超過1.5重 量％時，防霧劑成爲飽和狀態，除了經濟上不佳之外，由 於大量之防霧劑將轉移至薄膜表面，薄膜表面將成爲噴上 薄粉之狀態，使外觀變差而不佳。 另一方面，於本發明之聚丙烯系樹脂積層薄膜中，基 於使抗結塊性得以提高之目的下或使平滑性得以提高之目 的下，必須將無機系微粒添加於形成密合層之樹脂中。如 .. 此之無機系微粒能夠使用平均粒徑爲1.0〜12.0“111，適宜 爲1.3〜4.0/zm，並且細孔容積爲1.0〜2.0ml/g，適宜爲1.25 〜1.80ml/g之無機系微粒。若平均粒徑、細孔容積中任一 種超出此範圍的話，便無法得到良好之抗結塊性、平滑性° 亦即，若平均粒徑小於1.0 # m的話，除了薄膜之抗結塊性 將不足之外，由於"H40變得難以調整成0.2以上、1.1以 下之範圍內，相反的，若超過12.0/zm的話，因爲外觀' 透明性將惡化而不佳。另外，若細孔容積超過2.Oml/g的 話，與樹脂混攪時之分散將變差，若小於1.〇ml/g的話，除 了耐刮傷性將惡化，每單位添加重量之粒子數將變少’欲 添加等量之粒子數量時，其結果，必須增加添加量，由於 惡化透明性而不佳。無機系微粒能夠適當使用二氧化矽、 矽酸鎂、矽酸鋁、碳酸鈣、氧化鎂等。該等無機系微粒之 中，尤其能夠適當使用平均粒徑爲1. 5〜4.0 // m、細孔容積 爲1.0〜2.Oml/g之二氧化砂。另外，相對於形成基層或密 合層之樹脂100重量份，無機系微粒之摻合量適宜爲〇·〇5 -16 - 200909211 〜0.60重量份。若少於0.05重量份的話，抗結塊性將不足， 若超過0.60重量份的話，分散性將惡化，引起外觀、透明 性之惡化而不佳。基於抗結塊性與分散性之觀點，無機系 微粒之摻合量較宜爲0.10〜0.40重量份。使平均粒徑成爲 1.5〜4.0/zm、使細孔容積爲1.0〜2.0ml/g之二氧化矽成爲 0.10〜0.40重量份的摻合量之方式來使用特別理想。還有， 無機系微粒之細孔容積能夠根據BET方式，利用〗IS-K-1 150 之方法等習知方法加以測定。另外，細孔容積之測定裝置 能夠適當使用Quantachrome公司製之Autosorb 1或日本島 津製造所製之高速比表面積/細孔分布測定裝置ASAP 2400 等。 再者，本發明之聚丙烯系樹脂積層薄膜必須容易辨識 內容物之方式，使霧度値成爲0.4%以上、5.0%以下之方 式來調整。若霧度値超過5.0%時，因爲用於生鮮食品包裝 用途之情形，透明性將變得不足而不佳。另外，霧度値之 下限適宜爲0.8 %以上，尤以1. 0 %以上特別理想。另外， 霧度値之上限適宜爲 4.0%以下，尤以 3.5%以下特別理 想。還有，雖然霧度値越低越好，若考量抗結塊劑添加於 樹脂中爲不可缺少的話，認爲得到少於0.4 %之聚丙烯系樹 脂薄膜，實質上爲不可能的。 再者，本發明之聚丙烯系樹脂積層薄膜適宜於積層膜 全部薄層中含有15mg/kg以上、少於150mg/kg之A1。一般 而言，聚丙烯聚合之情形，將有機鋁化合物作爲助催化劑 -17- 200909211 使用’利用溶劑法等之習知聚合方法之情形，針對 化劑之去除步驟而將有機鋁化合物予以去除，根據 使用之氣相法聚合所得的聚丙烯原料中，因爲僅催 失活將發生’於是於原料內存在A1。亦即，所謂於 膜中存在A1係意指使用根據氣相法聚合得到的聚 料所製造之積層薄膜。相較於根據溶劑法原料得到 烯原料’因爲根據氣相法聚合所得的聚丙烯原料不 化劑、無規聚丙烯之去除步驟、其去除必要溶劑之 驟’能量消耗方面，可謂經濟性原料，使用該原料 之積層薄膜也有利於地球環境，也稱爲經濟性薄膜, 相對於積層薄膜全部薄層，A1含量較宜爲20mg/kg 少於80mg/kg。還有，積層薄膜全部薄層中所含之 能夠將既定量（約1.0 g )之試料予以乾式分解，利 理後，藉由電漿發光分析進行測定之方法等而求出 此外，本發明之聚丙烯系樹脂積層薄膜，其形 : 層之樹脂適宜爲將熔融流動速率調整成1.5g/10 上、9.0g/10分鐘以下之物，或是此等樹脂之混合牧 方式，藉由將熔融流動速率被調整之樹脂或此等之 作爲密合層形成用之樹脂使用，根據後述之造粒所 膜之動摩擦係數（#H40)或AR値之調整將成爲笔 另外，聚丙烯系樹脂積層薄膜係連續製造而以 式捲取之場合下，直到物性安定爲止將非常耗時（ 定約4 0 °C的氣體環境中進行老化之情形下，物性之 利用催 本發明 化劑之 積層薄 丙烯原 的聚丙 需要催 回收步 所製造 3另外， 以上、 A1的量 用酸處 〇 成密合 分鐘以 I。如此 .混合物 得的薄 ί易的。 .軋輥方 通常設 :不安定 -18- 200909211 狀態將持續約1 2小時左右）。因此，如此方式，藉由起因 於製造後之薄膜物性歷經長時間不穩定，導致緊密纏繞而 在薄膜圓筒中容易產生皺摺。 本發明之發明人等基於上述之見解，於老化時，爲了 不使薄膜圓筒中產生皺摺之方式來進行，如同通常所考量 的，推測因爲僅控制摩擦係數尙嫌不足，必須同時滿足使 所捲取的薄膜彼此（薄膜之表面與裏面）適度互相滑動， 以適當速度而從所捲取的薄膜彼此之間洩漏空氣。另外， 所捲取的薄膜彼此滑動之情形，推測是否能夠根據物性安 定的薄膜（老化後之薄膜）之40°C的動摩擦係數（亦即， A H40 )而估計，或是從所捲取的薄膜彼此之間的空氣洩漏 容易性能夠根據物性安定的薄膜之 AR (氣漏指數Air Leakage )之値而估計。而且，根據此等推論，針對老化時 之皺摺產生程度與物性安定的薄膜之/z H40及AR値的關 係，鑽硏之結果，於物性安定之薄膜中，Μ H40及AR値處 於既定範圍內之情形下，明確得知老化時在薄膜圓筒中並 未產生皺摺。然而，如本發明之聚丙烯系樹脂積層薄膜， 要求低的霧度値（亦即，高的透明性）之薄膜中，由於所 添加的潤滑劑之種類或量將大幅受限，不僅單純調整潤滑 劑的種類或量之情形，認爲將# Η40及AR値控制於所要 求之範圍內爲不可能的，潤滑劑於樹脂中之分散程度的控 制爲必要的。因此’本發明之發明人等考量潤滑劑於樹脂 中之分散程度’不斷嚐試錯誤之結果，根據後述之方法（參 -19- 200909211 照0053段落〜0064段落）’不使用大量之潤滑劑，發現能 夠得到同時符合所要求之霧度値、所要求之# Η 4 0、所要求 之AR値的聚丙烯系樹脂薄膜，於是達成硏究本件之發明。 亦即，本發明之聚丙烯系樹脂積層薄膜，在4(rc之氣 體環境中測出的動摩擦係數（亦即，V Η 4 0 )爲〇. 2以上、 1 · 1以下爲必要的。若/ζ Η 4 0小於〇. 2時，薄膜彼此將過度 滑動’捲取成圓筒狀之後’因爲捲取錯位（shear)將發生而 不佳’相反的，若// Η 4 0超過1 · 1時，潤滑性爲差的，捲 取成圓筒狀之後，因爲在薄膜圓筒中皴摺變得容易產生而 不佳。還有，Μ Η40之下限適宜爲0.3以上，尤以0.35以 上特別理想。另外，# Η40之上限適宜爲1 . 〇以下，尤以 0.95以下特別理想。 再者，本發明之聚丙烯系樹脂積層薄膜，其係重疊2 片薄膜後而進行減壓時，從薄膜間氣體漏光爲止之時間的 氣漏指數（亦即，A R )必須爲1 · 8秒以上、1 〇 . 〇秒以下。 將聚丙烯系樹脂積層薄膜捲取成圓筒狀後而作成薄膜圓筒 之際，較宜一面捲入定量之空氣，並一面捲取。若捲入量 爲少的時，除了變得容易結塊之外，如本發明之聚丙烯系 樹脂積層薄膜之情形，由於其玻璃轉移溫度爲負的區域， 因而即使常溫下也將引起尺寸變化，也由於相重疊的薄膜 彼此隨動而導致尺寸變化，因爲皺摺發生而不佳。尤其， 於拉伸薄膜中，沿著拉伸後殘留應力之方向，變得容易產 生皴摺。另一方面，若空氣捲入過多的話，由於相重疊的 -20- 200909211 薄膜各自任意變形’薄膜中發生鬆驰，或相對於薄膜之流 向成垂直的方向將產生皴摺而不佳。而且，若AR値在K8 秒以下時’由於捲入之空氣將立即消失，薄膜彼此將結塊， 或是因拉伸時之殘留應力，在製品薄膜圓筒中發生皴摺而 不佳，相反的’右AR値在10_0秒以上時，由於捲入之空 氣始終保持著’在薄膜中發生皺摺，或是在製品薄膜圓筒 中’相對於薄膜之流向成垂直的方向將產生皺摺而不佳。 還有’ AR値之下限較宜爲2.0秒以上，尤以2.5秒以上特 別理想。另外’ A R値之上限較宜爲9 · 0秒以下，尤以8 . 〇 秒以下特別理想。 另外，本發明之聚丙烯系樹脂積層薄膜較宜於14〇它、 施加1 kg/m2之壓力1秒鐘而使密合層彼此予以熱壓黏後， 使此等熱壓黏部分予以1 8 0度剝離時之強度（所謂密合強 度）適宜爲l_5N/15mm以上、小於6.0N/15mm。若密合強 度小於1 . 5 N/1 5 mm時’用於包裝用途之情形下，袋子將變 得太容易開啓而不佳，相反的，若密合強度爲6.0N/15 mm 以上時，用於包裝用途之情形下，袋子變得難以開啓而不 佳。還有’密合強度之下限適宜爲2. ON/15mm以上，尤以 3 ‘ ON/1 5 mm以上特別理想。另外，密合強度之上限適宜小 於5 ·0Ν/15mm，尤以小於4.0N/15 mm特別理想。 另一方面，基於印刷性及因防霧劑所得的防霧效果顯 現性之觀點’本發明之聚丙烯系樹脂積層薄膜，將密合層 表面之潤濕張力調整至35mN/m以上、45mN/m以下爲必要 -21- 200909211 的。另外，密合層表面之潤濕張力的下限適宜爲37mN/m 以上，相反的，密合層表面之潤濕張力的上限較宜爲 43mN/m以下。若潤濕張力小於35mN/m時，因爲薄膜表面 防霧效果之發現性變得不良而不佳，相反的，潤濕張力超 過45mN/m時，結塊或壁損壞變得容易發生而不佳。 於是，針對本發明之聚丙烯系樹脂積層薄膜之適宜製 法加以說明。未拉伸薄膜之形成適宜分別將以結晶性聚丙 p 烯爲主體之基層形成用樹脂和以聚烯烴爲主體之密合層形 成用樹脂供應至其他擠出機，進行加熱熔融、通過過濾濾 器後，於220〜3 20°C之溫度、T型沖模（olies)內，積層基 層形成用樹脂與密合層形成用樹脂後，藉由狹縫狀之T型 沖模出口，進行熔融擠出、予以冷卻固化而形成連續之未 拉伸薄膜。此時，若使樹脂掉落於轉筒狀抽取機（冷硬乳 輥）上，從與接觸於冷硬軋輥面之相反側面，藉由氣刀吹 風時，因爲未拉伸薄片與冷硬軋輥之緊貼性將增加，而可 C ； 以得到表面爲平滑且厚度均勻之未拉伸薄片而較佳。此時 之氣刀的風壓適宜設爲700〜2200mmH2〇之範圍。若風壓 爲低的時，因爲未拉伸薄片與冷硬軋輥之緊貼變得不均勻 而不佳，相反的，若風壓爲高的時，因爲未拉伸薄片與紊 亂的冷硬軋輥之緊貼變得不均勻而不佳。另外，如上所述， 進行熔融擠出時之樹脂溫度係不發生樹脂劣化之溫度範 圍，適宜約爲2 30〜290°C左右之溫度範圍，較宜爲270〜 280°C左右之溫度範圍。 -22- 200909211 另外，以進行熔融擠出之際的結晶性聚丙烯爲主體之 基層形成用樹脂與以聚烯烴爲主體之密合層形成用樹脂的 樹脂溫度，各自之樹脂存在明確熔點之情形下，適宜較其 熔點爲高60°C以上之溫度，較宜爲高70°C以上、不致於熱 劣化之溫度。若樹脂溫度爲如此之溫度範圍內時，由於能 夠減少依賴熔融擠出時之聚烯烴系樹脂分子量分布的熔融 變形鬆弛時間分布之影響，故能夠減低未拉伸薄片之厚度 不均。另外，冷硬軋輥溫度適宜調整至3(TC以下之溫度， 更佳調整至20°C以下。若進行熔融擠出時之樹脂溫度爲低 的、冷硬軋輥溫度爲高的時，因爲容易進行樹脂之結晶化， 薄膜表面成爲粗糙狀態，變得容易發生厚度不均而不佳。 如上所述，於形成未拉伸薄膜之後，藉由進行此未拉 伸薄膜之雙軸拉伸而予以雙軸配向。拉伸方法可以使用逐 次雙軸拉伸方法、或同時雙軸拉伸方法。逐次雙軸拉伸方 法能夠採用如下之方法：將未拉伸薄膜加熱至9〇〜14〇它之 溫度’沿著長軸方向拉伸3〜7倍後，從冷卻後起，導入拉 幅器式拉伸機’加熱至130〜175 t之溫度，寬度方向拉伸 成7〜12倍之後’於既定之溫度進订熱固定（熱處理）後， 在寬度方向予以鬆弛2〜15%，宜爲4〜1〇 %、冷卻後捲取。 如此方式’藉由拉伸後，一面鬆驰並一面熱固定，由於消 除了依賴聚嫌烴系樹脂分子量分布的熔融變形歪斜，遍及 薄膜全部寬度中’積層薄膜之熱收縮性等物性將安定，其 結果’熱密合時之密合部的收縮、尺寸變化將變少，進而 -23- 200909211 得到無密合部變形之美觀良好的包裝物將成爲可 有，針對適宜之熱固定方法，將容後敘述。 於基層所積層的密合層厚度之比率並未予j 定，通常，相對於積層薄膜全部薄層（基層及密 該比率適宜爲1/60〜1/3 (於基層兩面積層密合層 計厚度），較宜爲1/50〜1/5，尤以1/30〜1/10特 若密合層之厚度比率較1/60爲小時，因爲製袋加 合強度變得不足，包裝物之信賴性將變得欠缺而 外，若密合層之厚度比率較1/3爲大時，因爲起 部分之比例爲小的，整個積層薄膜中，所謂的” 失，塡充內容物後之包裝物形狀將成爲不安定且 價値之物而不佳。另外，積層膜之厚度並未予以特 具有高防霧性之包裝用薄膜能夠於適宜之約10〜 圍內予以適當決定。還有，積層薄膜較佳之厚度 〜60 // m。 另外，本發明之聚丙烯系樹脂積層薄膜，由 於包裝蔬菜等生鮮食品之用途所使用，較宜具有 斷密合性。具體而言，使用將刀尖角度調整成60 尖設定溫度調整成39(TC之熔斷密合機，利用刀尖 尖之實際溫度）370°C、120袋/分鐘之射出速度以 的熔斷密合袋之情形下，所形成的熔斷密合袋每 不良率（熔融狀態及切斷狀態發生不當情形之比 爲5%以下。另外，不良率適宜爲4%以下，較；| 能的。還 以特別限 合層）， 時係其合 別理想。 工時之密 不佳。另 因於基層 腰”將消 欠缺商品 :別限定， 7 0 // m 範 範圍爲15 於主要用 良好之熔 度、將刀 溫度C刀 作成薄膜 1 000片之 例）較宜 [爲3 %以 -24- 200909211 下’更佳爲2 %以下，尤以1 %以下特別理想。 再者’本發明之聚丙烯系樹脂積層薄膜能夠於一側或 二側表面進行電暈放電處理或火焰處理等之表面處理。還 有’針對較佳之電暈放電處理方法，將容後敘述。 另外’爲了得到本發明之聚丙烯系樹脂積層薄膜，於 製造時’採取下列之（1)〜（4)之手段爲必要的。藉由 採取如此之手段’防霧性、透明性、耐結塊性、平滑性爲 良好的’得到捲取成圓筒狀時難以產生皺摺之薄膜成爲可 能的。另外，藉由採取（5 )之手段，穩定製造長條形之薄 膜成爲可能的。 (1 )密合層形成樹脂中之無機系微粒分散條件的調整 (2)基層形成樹脂中之乙烯含量的調整 (3 )橫向拉伸後之熱固定條件的調整 (4) 電暈放電處理條件的調整 (5) 積層樹脂薄片形狀的調整 以下，針對上述之各技術手段依序加以說明： (1 )密合層形成樹脂中之無機系微粒分散條件的調整 於本發明之聚丙烯系樹脂積層薄膜之製造中，將無機 系微粒添加於形成密合層之聚烯烴系樹脂中之際，不僅將 粉末之無機系微粒添加於擠出機內而進行混攪，也作成預 先將高濃度之無機系微粒添加於聚烯烴系樹脂中的母料聚 合物屑片’必須採用以不含無機系微粒的聚烯烴系樹脂來 摻合稀釋該母料屑片之方法。 -25- 200909211 另外，形成密合層之母料屑片必須將無機系微粒添加 於聚烯烴系樹脂中，使用混合機或摻合機等攪拌之後，將 該混合物倒入擠出機內，於混攪、熔融擠出而形成九粒狀 之後’與不含無機系微粒之聚烯烴系樹脂屑片相混合後而 利用（以下’如上所述，將無機系微粒添加於樹脂中攪拌 之後，倒入擠出機內，混攪、熔融擠出而形成九粒狀之步 驟，將該步驟稱爲造粒步驟）。 再者’形成密合層之母料屑片，必須倂用僅進行1次 混攪步驟之物（1次造粒屑片）與重複2次混攪步驟之物 (2次造粒屑片）。另外，如此方式，倂用1次造粒屑片 與2次造粒屑片之情形下，1次造粒屑片與2次造粒屑片之 混合比適宜調整至1: 9〜9: 1之範圍內。再者，倂用1次 造粒屑片與2次造粒屑片之際，適宜盡可能使於1次造粒 屑片形成時進行添加之無機系微粒的粒徑與2次造粒屑片 形成時進行添加之無機系微粒的粒徑相接近，亦即，倂用 1次造粒屑片與2次造粒屑片之際，1次造粒屑片形成時進 行添加之無機系微粒的粒徑與2次造粒屑片形成時進行添 加之無機系微粒的粒徑之差値適宜小於2.0/zm。 於密合層形成時，若僅使用已添加小於1 ,5 /z m之小粒 徑的無機系微粒的2次造粒屑片時，因爲v H40將增大， 平滑性將惡化’於捲取成滾筒狀時，在薄膜圓筒中容易產 生皺摺而不佳。還有，如此方式，若在薄膜圓筒中產生皺 摺的話’起因於在薄膜圓筒中保管時將緊密纏繞，於薄膜 -26- 200909211 間所捲入之空氣將變少’防霧劑變得難以滲出’薄膜之防 霧性將惡化。另外，若在薄膜圓筒中產生皺摺的話’於熔 斷後而進行製袋加工（積層加工）之際，無法漂亮地製袋， 所形成的袋子外觀將變差。另外’若僅使用已添加 以上之大粒徑無機系微粒的1次造粒屑片時，由於AR値極 端變小，與上述同樣的，於薄膜間所捲入之空氣變少，因 爲於薄膜圓筒之保管時相重疊的薄膜彼此隨動而變形，在 ^ 薄膜圓筒中變得容易產生皴摺而不佳。另外，與上述同樣 的，防霧劑將變得難以滲出，薄膜之防霧性將變得惡化。 再者’若僅使用已添加小於1 · 5 /z m之小粒徑無機系微粒的 1次造粒屑片時，因爲由於無機系微粒之分散性不足，在 薄膜上形成魚眼（亮點）而成爲外觀不良而不佳。再加上， 於不使熔斷密合強度惡化之範圍內，形成密合層之母料屑 片係除了已添加無機粒子之1次造粒屑片及2次造粒屑片 之外，倂用已添加有機系微粒之造粒屑片也爲可能的。 1 另外，如上所述，進行混攪之情形下，適宜將擠出機 之螺桿等之旋轉物的轉速調整至l〇〇rprn以上、500rpm以 下’較宜爲調整至250rpm以上、450rpm以下，尤以調整至 270rpm以上、43〇rpm以下特別理想。再加上，如上所述進 行2次造粒之際’較宜使第1次造粒之旋轉物的轉速較第 2次造粒之旋轉物的轉速爲高。 (2)基層形成樹脂中之乙烯含量的調整 於本發明之聚丙烯系樹脂積層薄膜之製造中，如上所 -27- 200909211 述能夠使用以聚丙烯爲主要成分之各種聚丙烯系樹脂作爲 形成基層之聚丙烯系樹脂’其中，較宜利用聚丙烯與乙烯 共聚合後之物或其改性物。另外，於如此之共聚物或改性 物之中’適宜使用乙烯之含率爲0.5重量％以上、少於1.5 重量％的樹脂。藉由使用如此之樹脂，基層內所添加之防 霧劑變得容易滲出，聚丙烯系樹脂薄膜之防霧性（後述之 初期防霧性及防霧持續性）特別提高。 若構成基層之共聚物中的乙烯含量成爲1.5重量％以 上的話，薄膜將軟化而變得難以平滑，VH40將變大。另 外，AR値將增大，從所捲取的薄膜彼此之間，空氣變得難 以洩露，在薄膜圓筒中變得容易產生皺摺。再者，薄膜變 得容易不耐熱，霧度値將增大、透明性將降低。相反的， 若乙烯之含量少於〇·5重量％的話’除了防霧劑變得難以 滲出，變得無法得到良好之防霧性之外’因爲熔黏部分之 黏性將失去、熔黏部分之形狀將倒塌、無法得到良好之密 合強度或是製袋加工時之熔斷密合性將惡化而不佳。 (3 )橫向拉伸後之熱固定條件的調整 另外，本發明之聚丙烯系樹脂積層薄膜係如上所述’ 利用共擠出法，藉由使密合層積層於基層上後而形成的未 拉伸薄膜，沿著縱橫雙軸’予以拉伸後進行熱固定而加以 製造。於如此雙軸拉伸膜之製造中，通常的聚丙稀系樹脂 薄膜製造之情形下，稍微降低熔點之1 5 5 °C以上、低於1 60 °C之溫度條件下予以熱固定爲通常的’爲了得到本發明之 -28 - 200909211 薄膜’必須於比一般更高之1 6 0 °C以上、低於1 7 0 °C的極高 之溫度下，進行熱固定處理。如此方式，藉由於高溫進行 熱固定處理，薄膜之收縮應力將被去除，捲取成圓筒狀後 之隨時間經過之變化將被抑制，皺摺之發生將被減低至極 低的水準。因此，不會導致因皺摺發生而造成防霧劑之滲 出不良，薄膜防霧性惡化之事態不會發生。另外，起因於 皴摺發生的製袋加工或印刷加工中之惡化等事態也不會發 生。 若熱固定處理之溫度超過170 °C時’薄膜表面將熔融而 引起不耐熱、粗糙，// H40將降低而變得容易滑動，雖然 薄膜間之空氣變得容易洩露（AR變小），因爲薄膜之透明 性或外觀將變得不良，變得不耐使用而不佳。相反的，若 熱固定處理之溫度低於16CTC時，變得容易徐冷，表面再結 晶化時，除了球晶將成長、透明性變差之外’因爲薄膜之 收縮應力也變大，隨時間經過之變化也變大’保管時皺摺 於薄膜圓筒中變得容易發生而不佳。 (4)電暈放電處理條件的調整 於本發明之聚丙烯系樹脂積層薄膜之製造中，在薄膜 表面，利用既定之條件以進行電暈放電處理爲必要的。亦 即，電暈放電處理能夠採用習知之各種方法’適宜根據於 薄膜寬度方向所懸吊架設的鋁製桿式等電極’較宜在雙軸 拉伸後之薄膜表面進行’將薄膜與電極之間隔調整至1〜 3mm之外，利用15〜45W/m2/min之處理電力來進行。而且’ -29- 200909211 必須將電暈放電後之薄膜表面濕潤特性調整至35mN/m以 上、至45mN/m以下之範圍。 若電暈放電處理之程度爲弱的話，除了內部潤 '滑齊[]等 之添加劑將難以滲出外部，平滑性將變差（^ H40將增大） 之外，空氣變得難以洩漏（AR値將增大）。再者，於製袋 加工時，二個對折後的薄膜彼此之滑動將惡化，製袋加工 機與薄膜之摩擦將增大，美觀良好的熔斷密合袋便無法實 現。另外，內部之防霧劑也變得難以滲出至外部，使良好 之防霧性變得難以顯現。另外，若增強電暈放電處理之程 度時，除了薄膜表面將被毀損（起因於電暈放電處理之表 面凹凸將形成），如該不當情形將被消除，平滑性將成爲 良好之物（/z H40將降低）之外，空氣變得容易洩漏（AR 値將減少），若電暈放電處理之程度變得極端強時，薄膜 表面之所謂的”表面層粗糙”變得嚴重，除了起因於該” 表面層粗糙”，透明性將變低（霧度將增大）之外，所添 加的防霧劑等之滲出速度將變得極快，因大量防霧劑之存 在，隨時間經過也將導致透明性惡化的情形。再加上，由 於薄膜表面添加劑或樹脂將劣化而成爲低分子量物質，因 而變得容易發黏、變得容易結塊。此時，剝離接合的薄膜 彼此之際，由於單側之防霧劑將剝離，防霧性也將降低。 因而，爲了 一面顯現充分之防霧性及透明性得以發現、顯 示良好之熔斷密合性，並一面爲了將A H40及AR之値控 制於所要.求之範圍內，較宜以適度之強度來進行電暈放電 -30- 200909211 處理’因此’根據該形態而進行電暈放電處理爲有效的。 (5)積層樹脂薄片形狀的調整 於本發明之聚丙烯系樹脂積層薄膜之製造中，利用共 擠出法的積層樹脂薄片形成之際，必須使從第丨擠出機所 熔融擠出之基層形成用樹脂與從第2擠出機所熔融擠出之 密合層形成用樹脂於T模頭內予以積層，其溶融樹脂積層 之際，藉由較基層更窄化T模頭內之密合層形成用樹脂的 通過部分，從T模頭出口，適宜形成經積層基層與較該基 層寬度更爲狹窄之密合層的積層樹脂薄片。具體之手段爲 適宜地將隔離件組裝於T模頭內之密合層形成用樹脂的通 過部分左右兩端邊緣，從T模頭出口，形成基層與較該基 層寬度更爲狹窄之密合層的積層樹脂薄片。 若針對該技術詳加說明時，製造製品圓筒之際的問題 點係於製膜時之薄膜端部，積層如本發明之積層樹脂薄膜 的低熔點樹脂之情形下，由於薄膜黏貼於橫向拉伸時之拉 幅器夾子上，拉伸後而從拉幅器夾子剝離薄膜之際，有可 能發生薄膜裂開問題之情形。尤其，高速進行製膜之際， 該問題將有變得顯著之傾向。另外，連續生產薄膜之情形， 大多實施切斷拉幅器夾子之咬合部分，粉碎後而回到擠出 機原料漏斗之步驟，此時，若於咬合部分積層低熔點原料 時，該咬合部分將黏貼’切斷、供應至粉碎機、粉碎將變 得困難，該咬合部分將成塊，發生無法供應等之問題。因 此，於T模頭內積層從擠出機供應的樹脂之際’藉由使隔 -31 - 200909211 離件插入τ模頭之兩端後而在表面層所積層的 不積層於成爲夾子咬合部分的薄膜兩端部之方 能夠減低該問題之發生，因而，穩定且連續製 成爲可能的。 以下，顯示本專利說明書中使用之特性値甲 〔40°C中之動摩擦係數（#Η40)〕 將下面形成平面之1 500g扁平長方體裝配 合層成爲外側之方式來纏繞切斷成既定大小之 膜），利用移動膜以覆蓋裝配架之下面（縱X橫= 另—方面，於一部分（遍及20cm長度之部分） 40°C之水平基台上，使密合層成爲朝上之方式 斷成較裝配架爲足夠大的其他薄膜（固定膜） 已裝配移動膜之裝配架放置於固定膜上，使移 層與固定膜之密合層予'以接合，於此狀態下， 置而以2.5m/分鐘之速度來拉伸裝配架，使其通 熱部分上。然後，將加熱部分通過時之動摩 AH40而算出。還有，測定用之薄膜係於23°c 氣體環境中，歷經1 2小時以上進行老化，測定 23°C、65RH%之氣體環境中進行的。另外，測 料後而重複5次進行，將其平均値作爲# H40 〔氣漏指數（Air Leakage : AR )〕 薄膜之氣漏速度係使用顯示於第1圖之 定。亦即，將薄膜4放置在環狀載台1上之孩 低熔點樹脂 式來進行， 造製品圓筒 ]測定方法。 架上，使密 薄膜（移動 7cmx5cm) ° 已被加熱至 來貼附已切 。之後，將 動膜之密合 利用驅動裝 過基台之加 擦係數作爲 、65RH% 之 本身也是於 定係更換試 而算出。 裝置進行測 ί，從薄膜4 -32- 200909211 之上方，將環狀之薄膜壓制物2放置在載台1上，施加張 力之狀態下固定膜4。接著，在薄膜壓制物2上放置另一 薄膜5，在該薄膜5上進一步放置另一環狀之薄膜壓制物 8，使用螺絲3以固定膜壓制物8、2及載台1。於此，薄膜 壓制物2具備：在上面圓形之溝孔2a、連通該溝孔2a之一 部分與薄膜壓制物2之外側部分的細孔2c ;及連通該溝孔 2a之一部分與薄膜壓制物2之內側部分的細孔2d。還有， 二片薄膜4、5中任一薄膜均係於捲取成圓筒狀時，使成外 側之表面變爲成上側之方式來設置。 如上所述，於設置薄膜後，藉由使透過管路7而連接 於細孔2c之真空泵6予以運轉，薄膜5將被溝孔2a所吸 附’成爲施加張力之狀態。再者，因爲薄膜4與薄膜5相 重疊的薄膜重疊部分X也透過薄膜壓制物2內之細孔2d予 以減壓，薄膜4與薄膜5係於其相重疊的部分X間，從外 圍部開始緊貼。緊貼狀態係藉由從薄膜重疊部分X之上部 觀察干涉條紋而能夠充分掌握。而且，薄膜重疊部分X之 外S產生干涉條紋後，千涉條紋將擴大至薄膜重疊部分X 之整面’測定干涉條紋之動作直到停止的時間（秒），將 此時間（秒）設爲「氣漏指數」。還有，測定係更換二片 薄膜試料而重複進行5次，將其平均値設爲AR値後而算出。 〔霧度値] 將所得的雙軸配向膜切斷成既定之大小，遵照JIS K7136’使用霧度計（日本電色工業股份公司製之3〇〇A) -33- 200909211 來測定。還有，測定係更換試料而重複進行5次，求出其 平均値。 〔初期防霧性〕 依下列順序而測定薄膜之防霧性：' (1 )將3 00mL、5 0°C之溫水加入5〇〇mL的上部開口容 器中。 (2 )將薄膜之防霧性測定面作爲內側，利用薄膜以密 閉容器開口部。 (3 )放置於5 °C之冷室中之後，於室溫（約2 3 °C )下 取出，利用下列6階段進行薄膜測定面之露水附著狀況的 評估。還有，測定係更換薄膜試料而重複進行5次’將其 平均等級設爲初期防霧性（例如’ 5次測出時之各等級爲 6,6,5,4,4之情形下’設爲5級）。 評估6級：整面無露水（附著面積=〇 ) 評估5級：些許露水附著（直到附著面積1 /5 ) : 評估4級：稍微露水附著（直到附著面積I/4) % 評估3級：約1 /2露水附著（直到附著面積2/4 ) 評估2級：幾乎露水附著（直到附著面積3 /4 ) 評估1級：整面露水附著（附著面積3/4以上） 〔防霧持續性〕 依下列順序而測定薄膜之防霧性： (1 )將300mL、5(TC之溫水加入500mL的上部開口容 器中。 -34- 200909211 (2 )將薄膜之防霧性測定面作爲內側，利用薄膜以密 閉容器開口部。 (3 )放置於5 °C之冷室中。 (4 ) 5°C之冷室中放置12小時後，移至30°C之環境 中，放置12小時。 (5 )重複（4 )之操作2天之後，利用下列6階段進 行薄膜測定面的露水附著狀況之評估。還有，測定係更換 試料而重複進行5次’將其平均之等級設爲防霧持續性（例 如’ 5次測出時之各等級爲6，6，5,4,4之情形下，設爲5級）。 評估6級：整面無露水（附著面積=〇 ) 評估5級：些許露水附著（直到附著面積1/5 ) 評估4級：稍微露水附著（直到附著面積1/4 ) 評估3級：約1/2露水附著（直到附著面積2/4 ) 評估2級：幾乎露水附著（直到附著面積3 Μ ) g平估1級：整面露水附著（附著面積3 / 4以上） 〔熔斷密合性〕 使用熔斷密合機（日本共榮機械材料（股份）製：PP5〇〇 型側面熔接（Side Welding))，利用下列條件以製作薄膜 之熔斷密合袋（ 200mmx300mm)。然後，將每1〇〇〇片製得 之熔斷密合袋的不良率設爲熔斷密合性而求得。條件：@ 斷刀；刀尖角度成60度、刀尖設定溫度390 °C、刀尖實際 溫度370°C、射出數：120袋/分鐘。 〔熱密合強度〕 -35- 200909211 將製品裁剪寬度x長度方向500mm之試樣後予以取 樣’沿著寬度將其3等分，從各自之中央部，取樣寬度方 向50mmx長度方向250mm大小之試樣，使密合面得以緊閉 之方式來將此試樣予以對折，於熱密合溫度140°C、壓力 lkg/cm2、熱密合時間1秒鐘之條件下，進行熱板密合，製 作寬度15mm之試驗片。測定此試驗片180度剝離強度而 設爲熱密合強度（N/1 5mm )。還有，測定係更換雙軸拉伸 薄膜試料而重複進行5次，算出其平均値。 〔潤濕張力〕 遵照JIS-K-6768法，於23°C、65%RH之氣體環境中 進行測定。還有，測定係更換雙軸拉伸薄膜試料而重複進 行5次，算出其平均値。 〔熔融流動速率（MFR )〕 遵照IIS K7210，利用條件-14之方法進行測定。還有， 測定係更換原料樹脂試料而重複進行5次，算出其平均値。 〔乙烯含量〕 還有，丙烯-乙烯共聚物中之乙烯含量係利用於高分子 分析手冊（ 1995年、日本紀伊國屋書店發行）的第615〜 617頁所揭示之方法，根據1 3C-NMR光譜法加以決定。還 有’根據同一書中之256頁「（i)無規共聚物」項之記載 方法，利用IR光譜法加以決定也爲可能的。 〔無機系微粒之平均粒徑〕 利用Coulter Counter Multisizer以測定重量分布，將 -36- 200909211 5 0 %直徑表示者設爲平均粒徑。 像處理而求出平均粒徑，或是is 膜後之殘渣而求出平均粒徑也爲 〔無機系微粒之細孔容積〕 根據BET方式，利用JIS-K 〔製品薄膜圓筒之皺摺〕 於4 0 °C之氣體環境中，經歷 狀之聚丙烯系樹脂薄膜的老化孩 以下之基準來判定有無皺摺： 〇…無皺摺 △…雖然有無皺摺之部分， X…整體發生皺摺 實施例 以下，根據實施例以詳加静 不受如此之實施例形狀所限定， 圍內，適宜變更爲可能的。將I 屑片A〜G之性狀、組成、造I 之密合層組成等顯示於表1、2 從雙軸拉伸薄膜，根據影 :利用酸等以處理所得的薄 可能的。 -1 1 5 0法而測出。 1 2小時，進行捲取成圓筒 :，目視該薄膜圓筒，根據 製品之良率爲差的 明本發明，但是本發明並 於不脫離本發明旨意之範 施例及比較例使用之原料 條件、實施例及比較例中 -37- 200909211 〔表1〕（其1 ) 無機、有機 添加量 第1次造粒條件 粒子之種類 (wt%) 造粒溫度條件rc) 螺桿 進料機 濾器篩孔 旋轉數 旋轉數 圓筒1 圓筒2 圓筒3 圓筒4 接合器 模頭 構造 (rpm) (rpm) 九粒A Silysia350 2.0 200 210 220 220 220 220 50/100/50 300 20 九粒B Silysia 350 2.0 200 210 220 220 220 220 50/100/50 300 20 九粒C Silysia 350 2.0 200 210 220 220 220 220 50/100/50 220 20 九粒D Silysia 350 2.0 200 210 220 220 220 220 50/100/50 220 20 九粒E Silysia 310P 2.0 200 210 220 220 220 220 50/100/50 300 20 九粒F Silysia 420 2.0 200 210 220 220 220 220 50/100/50 300 20 九粒G CS18 2.0 200 210 220 220 220 220 50/100/50 300 20 〔表1〕（其2) 第2次造粒條件 造粒溫度條件rc) 濾器篩孔 螺桿 進料機 構造 旋轉數 旋轉數 圓筒1 圓筒2 圓筒3 圓筒4 接合器 模頭 (rpm) (rpm) 九粒A 九粒B 200 210 220 220 220 220 50/100/50 220 20 九粒C 九粒D 200 210 220 220 220 220 50/100/50 220 20 九粒E 九粒F 九粒G - - -38- 200909211 〔表2〕 密合層之組成 樹脂之摻合(wt%) 基本原料之細目(Wt%) 添加劑之添加量(Wt%) FSX66E8 BH180EL-2 硬脂酸一甘油酯 芥酸醯胺 實施例1 A/B/基本原料=2.5/123/85.2 68.7 16.0 0.4 0.1 實施例2 C/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 實施例3 G/F/B/基本原料=15/6.15/6.15/85.2 68.7 16.0 0.4 0.1 實施例4 A/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 實施例5 A/B/基本原料=5.0/10.0/85.0 68.5 16.0 0.4 0.1 實施例6 A/B/基本原料=1.2/17.5/81.3 64.8 16.0 0.4 0.1 實施例7 A/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 實施例8 A/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 實施例9 A7B/基本原料=2512.3/85.2 68.7 16.0 0.4 0.1 實施例10 A/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 比較例1 B/基本原料=14.2/85.2 68.7 16.0 0.4 0.1 比較例2 A/基本原料=14.2/85.2 68.7 16.0 0.4 0.1 比較例3 A/E/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 比較例4 C/D/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 |比較例5 A/B/基本原料=2.5/12.3/85.2 68.7 16.0 0.4 0.1 -39- 200909211 〔抗結塊劑母料之作成〕 於丙烯-乙烯共聚物粉末之RW140EG(日本住友化學公 司製，乙烯含量4.0重量％、熔融流動速率5.0 g/10分鐘） 中，摻合 0.15 重量份之 Irganox 1010( Ciba Specialty Chemicals 公司製）、0.15 重量份之 Irgafos 168( Ciba Specialty Chemicals 公司製）、2.0 重量份之 Sylysia 350(日 本富士 Silysia化學公司製、二氧化矽粉末、平均粒徑 1.8# m、細孔容積1.60ml/g )作爲無機系微粒，設定全部 重量20kg，利用115L之超級攪拌機，以攪拌翼尖端圓周速 度20m/sec進行5分鐘混合。 接著，使用45mm4)之雙軸擠出機（螺桿直徑43mm(J)、 L/D : 1 9.5 )，於將螺桿之轉數、進料機之轉數分別調整至 3 00rpm、20rpm之條件下，僅進行1次造粒後而得到九粒A。 另外，將相同的混合原料，於相同於九粒A之條件下進行 造粒（第1次造粒）之後，使用同樣之雙軸擠出機，於將 螺桿之轉數、進料機之轉數分別調整至220rpm、20rpm之 條件下，進行再次造粒（第2次造粒）後而得到九粒B。 另一方面，使用相同的雙軸擠出機，將同樣的混合原料， 於將螺桿之轉數、進料機之轉數分別調整至220rpm、20rpm 之條件下，僅進行1次造粒後而得到九粒C。再者，藉由 將相同的混合原料，於相同於九粒C之條件下進行造粒（第 1次造粒）之後，使用同樣之雙軸擠出機，於相同於第1 次造粒之條件下進行造粒（第2次造粒）後而得到九粒D。 -40- 200909211 另外，藉由於混合原料之調整時，分別將無機系微粒變更 爲Sylysia 310P (日本富士 Silysia化學公司製、二氧化矽 粉末、平均粒徑 1.4/zm) 、Sylysia 420 (日本富士 Silysia 化學公司製、二氧化矽粉末、平均粒徑1 · 9 μ m、細孔容積 1.25ml/g) ’於相同於九粒a之條件下，僅進行1次造粒後 而得到九粒E、F。再者’藉由於混合原料之調整時，添加 有機系微粒（日本住友化學公司製之CS18、平均粒徑 1.8/zm之聚合物珠）以取代無機系微粒，於相同於九粒a 之條件下’僅進行1次造粒後而得到九粒〇。還有，於該 九粒A〜G之造粒時，將濾篩構造作成5〇篩孔n〇〇篩孔/5〇 篩孔，分別將第1〜第4之圓筒、接合器、模頭溫度調整 至 200°C、210°C、220°C、220°C、220°C、220°C (參照表 1)。 〔實施例1〕 <密合層之作成> 抗結塊劑母料係於115ιηιηφ之擠出機（L/D: 29)內， 熔融混合下列原料後而作成熱密合層：2.5重量％之九粒 A、12.3重量％之九粒Β、作爲基礎原料的68.7重量％之 FSX66E8(利用氣相法所製造之日本住友化學公司製之聚丙 烯系樹脂、乙儲含量2.5重量％、1-丁烯含量7.0重量％、 溶融流動速率3.5g/l〇分鐘）、16.〇重量％之BH180EL-2(利 用氣相法所製造之日本住友化學公司製之聚丙烯系樹脂、 1-丁烯含量25.0重量％、熔融流動速率3〇g/1〇分鐘）、〇.4 重量％之一硬脂酸一甘油酯、0.1重量％之芥酸醯胺。 -41 - 200909211 <基層之作成> 於串聯式擠出機（第1段175ηΐιηφ 、l/d: 17;第2段 220mmcJ)、L/D: 20)內，熔融混合下列原料後而作成基層： 97.89重量％之FS2011DG3(利用氣相法所製造之日本住友 化學公司製之聚丙烯系樹脂、乙烯含量〇 9重量％、熔融 流動速率2.5g/10分鐘）、1,26重量％之s〗3i(利用氣相 法所製造之日本住友化學公司製之聚丙烯系樹脂、乙烯含 量50重量％、熔融流動速率l_7g/l〇分鐘）、0.10重量％ ί 之一硬脂酸一甘油酯、0.60重量％之聚環氧乙烷（2)硬脂 醯胺一硬脂酸酯、0.15重量％之聚環氧乙烷（2)硬脂醯胺。 <薄膜之作成> 於擠出機內分別熔融該基層形成用樹脂及密合層形成 用樹脂，於該狀態下，直接以基層的噴出量1 980kg/H、密 合層的噴出量126kg/H之供應量，在控制於260°C之3層T 模頭（多歧管型、切口寬度900mm、切口間隔2.4mm)內 k 進行積層後而擠出。此時，於沖模內之密合層形成用樹脂 通過部分的左右兩端置入寬度50mm之隔離件，使密合層 不積層於基層左右兩端之方式來進行。進行如此方式’藉 由利用氣刀、以風速1 050mmAq而將擠出之熔融樹脂噴附 於20 °C之澆鑄圓筒上，以58.8m/分鐘之速度進行抽取、冷 卻固化後而得到積層樹脂薄片。還有’如第2圖所示’所 得的積層樹脂薄片係密合層的寬度較基層的寬度更狹窄約 50mm。利用分別依序從l〇8t至130°C連續加熱的圓筒，預 -42- 200909211 先將所得的薄片予以過熱後，於過熱至1 3 1°C的圓筒之間’ 藉由將各自之圓筒速度調整成65.44m/分鐘、242.1 2m/分鐘 後而賦與速度差，進行3.7倍之縱向拉伸後，利用加熱至 130 °C之圓筒予以鬆弛。然後，於167.5 °C之烘箱內，以 24 1.4m/分鐘之速度來預熱已被縱向拉伸之薄片後，於155 °C、以變形速度1.39 m/秒之速度來橫向拉伸10.7倍，進一 步藉由於165 °C之環境中，一面進行熱固定，並一面於4.5 秒鐘予以8%鬆弛；於40°C之環境中進行1.5秒鐘之冷卻， 連續製作密合層0.8/zm、基層18.4//m、密合層0.8/zm之 順序所積層的全部20;/m之2種3層薄膜。然後，如此方 式’在連續所製作之薄膜表面，使薄膜表面之潤濕張力成 爲3 9mN/m之方式來進行電暈放電處理，藉由使絕對濕度 成爲8g/kg乾燥空氣以上之方式所控制之環境中，以捲取 速度24 1.4 m/分鐘來捲取電暈放電處理後之薄膜，得到寬度 方向6240mm、流動方向29000m之捲取薄膜圓筒。進—步 於40 °C之環境中保管捲取後之薄膜圓筒12小時，進行自然 鬆驰後’切割成寬度方向600mm、流動方向4000m大小而 得到7 0條製品薄膜圓筒。所得的製品薄膜圓筒並無皴摺， 能夠良好地進行印刷、製袋等之加工。然後，利用上述之 方法以評估構成所得的製品薄膜圓筒之薄膜特性。將評估 糸π果顯不於表3。另外，從所得的薄膜圓筒切割既定量（約 l.Og)之薄膜試料’乾式分解該薄膜試料，利用酸進行處 理後’根據電漿發光分析而測定A1含量後，A1之含量爲 -43- 200909211 34mg/kg 〔實施例2〕 於實施例1中，作成密合層之際’使用九粒C以取代 九粒A，進行相同於實施例1之方式而得到製品薄膜圓筒。 所得的製品薄膜圓筒係相同於實施例1並無皴摺，能夠良 好地進行印刷、製袋等之加工。然後’利用相同於實施例 1之方法以評估構成所得的製品薄膜圓筒之薄膜特性。將 評估結果顯示於表3。 〔實施例3〕 於實施例1中，作成密合層之際’使用九粒G以取代 九粒A，將九粒B之一部分置換成九粒F。除此之外’進 行相同於實施例1之方式而得到製品薄膜圓筒所得的製 品薄膜圓筒係相同於實施例1並無皺摺’能夠良好地進行 印刷、製袋等之加工。然後’利用相同於實施例1之方法 以評估構成所得的製品薄膜圓筒之薄膜特性。將評估結果 顯不於表3。 〔實施例4〕 於實施例1中’藉由分別調整基層形成用之擠出機的 噴出量及密合層形成用之擠出機的噴出量，將雙軸拉伸後 之2種3層薄膜密合層的厚度變更成0.6/zm之同時，將基 層的厚度變更成亦即’作成依序積層〇.6"111之 密合層、18.8/zm之基層、0.6/zm之密合層的總共20#111 之2種3層薄膜）。除此之外，進行相同於實施例1之方 -44- 200909211 式而得到製品薄膜圓筒。所得的製品薄膜圓筒係相同於實 施例1並無皴摺，能夠良好地進行印刷、製袋等之加工。 然後，利用相同於實施例1之方法以評估構成所得的製品 薄膜圓筒之薄膜特性。將評估結果顯示於表3 ° 〔實施例5〕 形成熱密合層之際’抗結塊劑母料係於與實施例1相 同之115 mm<p擠出機內’熔融混合5.0重量％之九粒a、 10.0重量％之九粒B、作爲基礎原料的6 8.5重量％之 FSX66E8、16.0 重量 ％之 BH180EL-2、0.4 重量 ％之一硬脂 酸一甘油酯、0.1重量％之芥酸醯胺。除此之外’進行相同 於實施例1之方式而得到製品薄膜圓筒。所得的製品薄膜 圓筒係相同於實施例1並無皺摺，能夠良好地進行印刷、 製袋等之加工。然後，利用相同於實施例1之方法以評估 構成所得的製品薄膜圓筒之薄膜特性。將評估結果顯示於 表3。 〔實施例6〕 形成熱密合層之際，抗結塊劑母料係於與實施例1相 同之115mmp擠出機內，熔融混合1.2重量％之九粒A、 17.5重量％之九粒B、作爲基礎原料的64.8重量％之 FSX6 6E8、16.0 重量 ％之 BH180EL-2、0.4 重量 ％之一硬脂 酸一甘油酯、0.1重量％之芥酸醯胺。除此之外’進行相同 於實施例1之方式而得到製品薄膜圓筒。所得的製品薄膜 圓筒係相同於實施例1並無皺摺，能夠良好地進行印刷、 -45- 200909211 製袋等之加工。然後’利用相同於實施例1之方法以評估 構成所得的製品薄膜圓筒之薄膜特性。將評估結果顯示於 表3。 〔實施例7〕 於實施例1中’藉由分別調整基層形成用之擠出機的 噴出量及密合層形成用之擠出機的噴出量，將雙軸拉伸後 之2種3層薄膜密合層的厚度變更成l.O^m之同時，將基 層的厚度變更成23.0ym (亦即，作成依序積層1.0/zm之 密合層、23.0//m之基層、Ι.Ο/zm之密合層的總共25//m 之2種3層薄膜）。除此之外，進行相同於實施例1之方 式而得到製品薄膜圓筒。所得的製品薄膜圓筒係相同於實 施例1並無皺摺，能夠良好地進行印刷、製袋等之加工。 然後，利用相同於實施例1之方法以評估構成所得的製品 薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔實施例8〕 於實施例1中，藉由分別調整基層形成用之擠出機的 噴出量及密合層形成用之擠出機的噴出量，將雙軸拉伸後 之2種3層薄膜密合層的厚度變更成1.4/zm之同時，將基 層的厚度變更成37.2/zm (亦即，作成依序積層1.4//m之 密合層、37.2/im之基層、1.4/zm之密合層的總共40/zm 之2種3層薄膜）。除此之外，進行相同於實施例1之方 式而得到製品薄膜圓筒。所得的製品薄膜圓筒係相同於實 施例1並無皴摺，能夠良好地進行印刷、製袋等之加工。 -46- 200909211 然後，利用相同於實施例1之方法以評估構成所得的製品 薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔實施例9〕 於實施例1中，藉由分別調整基層形成用之擠出機的 噴出量及密合層形成用之擠出機的噴出量，將雙軸拉伸後 之2種3層薄膜密合層的厚度變更成之同時，將基 層的厚度變更成38.0/zm (亦即，作成依序積層1.0/zm之 f 密合層、38.0/zm之基層、1.0/zm之密合層的總共40#m 之2種3層薄膜）。除此之外，進行相同於實施例1之方 式而得到製品薄膜圓筒。所得的製品薄膜圓筒係相同於實 施例1並無皺摺，能夠良好地進行印刷、製袋等之加工。 然後，利用相同於實施例1之方法以評估構成所得的製品 薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔實施例1 0〕 於實施例1中，藉由分別調整基層形成用之擠出機的 噴出量及密合層形成用之擠出機的噴出量，將雙軸拉伸後 . 之2種3層薄膜密合層的厚度變更成1.4μπι之同時，將基 層的厚度變更成47.2#111 (亦即，作成依序積層1.4"m之 密合層、47.2/zm之基層、1.4/zm之密合層的總共50"m 之2種3層薄膜）。除此之外，進行相同於實施例1之方 式而得到製品薄膜圓筒。所得的製品薄膜圓筒係相同於實 施例1並無皺摺，能夠良好地進行印刷、製袋等之加工。 然後，利用相同於實施例1之方法以評估構成所得的製品 -47- 200909211 薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔比較例1〕 於實施例1中，作成密合層之際，使用九粒B以取代 九粒A，九粒B之合計摻合量作成14.8重量％。除此之外， 進行相同於實施例1之方式而得到製品薄膜圓筒。所得的 製品薄膜圓筒產生皴摺，印刷、製袋等之加工發生不當情 形。然後，利用相同於實施例1之方法以評估構成所得的 製品薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔比較例2〕 於實施例1中，作成密合層之際，使用九粒A以取代 九粒B，九粒A之合計摻合量作成14.8重量％。除此之外， 進行相同於實施例1之方式而得到製品薄膜圓筒。所得的 製品薄膜圓筒產生皺摺，印刷、製袋等之加工發生不當情 形。然後，利用相同於實施例1之方法以評估構成所得的 製品薄膜圓筒之薄膜特性。將評估結果顯示於表3。 〔比較例3〕 於實施例1中，作成密合層之際，除了使用九粒E以 取代九粒B之外，進行相同於實施例1之方式而嚐試薄膜 _筒之製作。然而，由於產生許多因無機系微粒的分散不 良所導致之異物，無法得到値得評估的薄膜試樣。 〔比較例4〕 於實施例1中，作成密合層之際，除了使用九粒C以 取代九粒A，使用九粒D以取代九粒B之外，進行相同於 -48- 200909211 實施例1之方式而得到製品薄膜圓 筒產生皺摺，印刷、製袋等之加工發 利用相同於實施例1之方法以評估櫚 筒之薄膜特性。將評估結果顯示於表 〔比較例5〕 於實施例1中，除了將薄膜橫尚 變更爲171°C之環境中實施4.5秒鐘 相同於實施例1之方式而得到製品薄 相同於實施例1之方法以評估構成戶/ 薄膜特性。將評估結果顯示於表3。 。所得的製品薄膜圓 生不當情形。然後， 成所得的製品薄膜圓 3 ° 拉伸後之熱固定條件 、8 %鬆弛之外，進行 膜圓筒。然後，利用 得的製品薄膜圓筒之 -49- 200909211 〔表3〕200909211 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a film for packaging, which is particularly resistant to fogging, and has good smoothness, anti-caking property and transparency, and is suitable for packaging by vegetables, A film of fresh food (hereinafter, referred to as fresh food) which is a plant or animal which requires high freshness, such as root vegetables, fruits, flowers, flowers, mushrooms, fish, and meat. [Prior Art] A film composed of a polyolefin resin is widely used as a substrate for packaging various articles mainly for foods. In particular, the polypropylene film is widely used in the field of food packaging because it has excellent optical properties such as excellent mechanical properties, transparency, gloss, and the like, and food hygiene such as gas barrier properties and odorless properties. However, the polypropylene resin film has the following disadvantages: it is inferior in blocking resistance; when the film is overlapped, it tends to cause the films to adhere to each other (so-called agglomeration), and the workability of packaging and the like is remarkably lowered. Therefore, a method for preventing agglomeration of a polypropylene-based resin film is recognized as a method of blending a so-called anti-caking agent in a film, wherein the anti-caking agent is an inorganic fine powder represented by cerium oxide. Or a method of crosslinking an organic fine particle such as a polymer; or blending a lubricant such as a fatty acid guanamine. In addition, when a polypropylene resin film having high antifogging property is subjected to bagging, a polypropylene resin is mainly laminated and a polypropylene resin film is mainly used. On the surface of the base layer. Further, in such a manner, the adhesion layer composed of the polyolefin-based resin is laminated on the base layer composed of the propylene-based resin, so that the bag of the 200909211 package is formed to have sufficient strength. The resin is used as a resin for forming an adhesion layer. In this manner, the polyolefin resin having a low melting point is used as a factor for further deterioration of the smoothness or agglomeration of the film. In order to eliminate such an inconvenience, a method of adding an inert fine powder of an organic polymer fine particle having a predetermined particle diameter and inorganic fine particles to a resin for forming an adhesion layer has been proposed (Patent Document 1). Patent Document 1: Japanese Laid-Open Patent Publication No. 2003-237827. On the other hand, a polypropylene resin is a so-called solvent method which is conventionally used in the presence of a catalyst having a low activity such as a titanium trichloride-organoaluminum compound. The improvement of the polyolefin polymerization catalyst obtained by polymerizing propylene is improved, and several kinds of high-activity catalysts have been developed, and as a result, the so-called gas phase method is utilized, so that the polypropylene resin can be obtained more inexpensively and efficiently. However, with this gas phase method, a polypropylene resin obtained by using a higher activity catalyst is caused by a large average particle diameter, a narrow particle size distribution, and a small amount of fine powder, in order to manufacture a polypropylene such as Patent Document 1. When the resin fine film is added and the inorganic fine particles are added to the resin, the dispersibility of the inorganic fine particles is deteriorated. Therefore, in order to solve such an unfavorable situation, it has been developed to utilize inorganic fine particles having a predetermined size and an apparent specific gravity to impart dispersibility of inorganic fine particles in a polypropylene-based resin obtained by a vapor phase method. Improved technology (Patent Document 2). Patent Document 2: Japanese Laid-Open Patent Publication No. Hei 8-81591---Aug. 200909211 The present invention is limited to the method of Patent Document 2, which is limited by the ability of the machine-based particles to have a large particle size. Therefore, the apparent specific gravity is large, and therefore, since a polypropylene film having superior anti-caking property is not necessarily obtained, and good smoothness cannot be found, winding the film into a crucible easily causes wrinkles in the film cylinder. Further, in this manner, the film cylinder which is folded and formed is high in the case of bag making or printing. The object of the present invention is to provide a polypropylene resin which is a problem in the conventional polypropylene resin film. The polypropylene resin produced by the method, which is inexpensive and efficient, has excellent anti-caking property and smoothness, and is less likely to wrinkle during winding into a cylindrical film cylinder, during bag making or printing. Good processability. Further, it is also a method for producing such a polypropylene resin film which can be produced at low cost. In the present invention, the structure defined in the first item of the patent application is a polypropylene-based resin laminated film which is laminated on both sides of the surface of the resin-based base layer to form a polyolefin system. The adhesion layer of the body has a thickness of l〇//m or more and less than 70//m, and the degree is 0. 4% or more, 5. 0% or less; The polypropylene resin laminated film is characterized in that the polypropylene resin constituting the base layer is formed by a vapor phase method, and the use thereof is small and the volume is small. When the olefinic resin is in the form of a cylinder, if a non-productivity film is used, it is possible to solve the problem of using a gas phase, and when it is excellent in the processing, it is effective in the processing, and the polypropylene resin is mainly used, and the mist layer and the dense layer are dense. Combined, in accordance with the following formula 200909211 (1), (2): (1) The coefficient of dynamic friction (hereinafter referred to as VH40) measured in a gas environment of 40 °C is 0. 2 or more, 1. 1 or less; and (2) The air leakage index (hereinafter referred to as AR) of the time when the air leaks from the film when the two films are superposed and decompressed is 1 . 8 seconds or more, 1 0. 0 seconds or less. The invention of the invention disclosed in claim 2 is disclosed in the invention of claim 1, wherein at least the base layer is biaxially stretched. The invention disclosed in claim 3 is disclosed in the invention of claim 1, in which all of the thin layers of the laminated film contain 15 mg/kg or more and less than 150 mg/kg of A1. The invention disclosed in claim 4 is disclosed in the invention of claim 1, wherein the base layer is formed of a propylene-ethylene copolymer, and the ethylene content in the propylene-ethylene copolymer. Is 0. 5 weight% or more, less than 1. 5 wt%. The invention structure disclosed in claim 5 is disclosed in the invention of claim 1, wherein the ratio of the thickness of the adhesion layer is 1/60 to 1/3 with respect to all the thin layers of the laminated film. . The invention disclosed in claim 6 is disclosed in the invention of claim 1, wherein an antifogging agent has been added to the base layer and the adhesion layer. The invention structure disclosed in claim 7 is disclosed in the invention of claim 6, in a gas environment of 5C covered with 5 (rc warm water 200909211 container opening). After being placed for 30 minutes, the exposed area of the dew after being taken out in a gas atmosphere at room temperature is 1/4 or less of the whole. The structure of the invention disclosed in claim 8 is disclosed in the scope of claim 1 In the invention of the present invention, a fuse-bonding machine that adjusts the blade tip angle to 60 degrees and the blade tip setting temperature to 3 90 °C is used, and a film speed of 370 ° C and an injection speed of 120 bags/min is used to form a film. The defective ratio of the fuse-sealing bag is 5% or less. The invention structure disclosed in claim 9 is disclosed in the invention of claim 1, in which the lkg/cm2 is applied at 140 ° C. After the pressure is applied for 1 second, the adhesive layers are thermally welded to each other, and then the strength of the heat-fusible portions is 180 degrees. 5N/1 5 mm or more, 6. 0N/15mm or less. The invention disclosed in the first aspect of the invention is disclosed in the invention of claim 1, wherein the surface of the adhesion layer has a wetting tension of 35 mN/m or more and 45 mN/m or less. The invention of the invention disclosed in claim 1 is disclosed in the invention of claim 1, wherein the resin forming the adhesion layer adjusts the melt flow rate to 1. 5g/10 minutes or more to 9. 0g/10 minutes, or a mixture of such resins. The invention of the invention disclosed in claim 1 is disclosed in the invention of claim 1, wherein the average particle size of the polyolefin-based resin layer forming the adhesion layer is 1. 〇;am above, less than 200909211 12. 0 is slightly less than the ethane fat in the anti-fabrication method, and the extruded eucalyptus does not pull the shaft to extract the same amount of Μ m after the granulation, and the pore volume is 1. Above 0ml/g 'Inorganic particles below 2_0mWS. The invention structure disclosed in the thirteenth application of the patent application is disclosed in the invention of claim 6 of the patent application scope. The antifogging agent is a polyalkylene oxide type antifogging agent and a polyethylene oxide alkylamine fat. At least two or more of the acid ester type antifogging agent and the acid glyceride type antifogging agent. The invention of the invention disclosed in claim 14 is disclosed in the invention of claim 6 in which the mist dose is 0 in all the thin layers of the laminated film. 2% by weight or more and less than 1. 5 wt%. The invention structure disclosed in claim 15 is a process for producing a polypropylene resin laminated film according to claim 1 of the patent application, comprising: melting by a co-extrusion method from a plurality of extruders; a polypropylene resin and a polyolefin resin, forming a film forming step of the unstretched polypropylene resin laminated sheet; and the stretched polypropylene resin laminated sheet obtained by the thinning step is double-stretched in the longitudinal direction and the transverse direction The biaxial stretching step; the method for producing the polypropylene resin film is in accordance with the following requirements (a) to (c): (a) The film forming step is performed by adding propylene-ethylene copolymer after one time of adding inorganic fine particles. a propylene-ethylene copolymer and a polypropylene resin which are produced twice by adding inorganic fine particles to form an adhesion layer; (b) when the film formation step is a propylene-ethylene copolymer to form a base layer, the propylene is formed - The ethylene content of the ethylene copolymer is adjusted to 0. 5 or more, less than 1. 5% by weight; and -10 200909211 (c) The biaxial stretching step is performed by heat-fixing after longitudinal and transverse biaxial stretching, and adjusting the temperature of the heat setting to 1601 or more and less than 170 °C. The invention structure disclosed in claim 16 is disclosed in the invention of claim 15 of the patent application, wherein the rotary object is rotated by a rotation speed of 1 rpm or more and 5 rpm or less. Granulation in the thinning step. The invention structure disclosed in claim 17 is a polypropylene resin laminated film which is formed by laminating a polyolefin-based resin on both sides of a base layer mainly composed of a polypropylene-based resin. The thickness is 10/zm or more, less than 70"m, and the haze is 0. 4% or more, 5. 0% or less; the polypropylene resin constituting the base layer and the adhesion layer is formed by a vapor phase method, and the base layer forming resin and the second extruder are melt-extruded from the first extruder. The melt-extruded adhesion layer-forming resin is laminated in a T-die, and an unstretched laminated resin sheet having a laminated base layer and an adhesion layer having a narrower width than the base layer is produced, and then produced. The biaxially stretched unstretched resin laminated sheet is formed by the biaxial stretching; the polypropylene resin laminated film is characterized by the following formulas (1) and (2): (1) measured in a gas atmosphere of 40 ° C The dynamic friction coefficient is 0. 2 or more, 1. 1 or less; and (2) When the two films are overlapped and decompressed, the air leakage index of the air leaks from the film is 1. 8 seconds or more, 1 0. 0 seconds or less. -11 - 200909211 The invention structure disclosed in claim 18 is disclosed in the invention of claim 17, wherein the τ die is formed by assembling a spacer to a resin for forming an adhesive layer. The T die that passes through the edges of the left and right ends. [Effects of the Invention] The polypropylene-based resin-based laminated film of the present invention can be produced by a polypropylene-based resin obtained by a vapor phase method, and can be produced at a low cost and with high efficiency. In addition, it has an excellent anti-caking agent. The smoothness is good, and when it is wound into a cylindrical shape, it is difficult to cause breakage in the film cylinder, and the workability at the time of bag making processing or printing processing is good. Moreover, since the added antifogging agent is easy The bleed surface has superior antifogging property and also has excellent transparency. Therefore, the polypropylene resin laminated film of the present invention can be applied to packaging of fresh foods such as vegetables. On the other hand, according to the present invention As described above, the propylene resin laminated film can be produced inexpensively and efficiently, and has excellent antifogging property and high transparency, and is excellent in workability during bag making or printing. [Embodiment] [Embodiment of the Invention] In the polypropylene-based resin laminated film of the present invention, it is mainly used for the formation of a polypropylene layer in a base layer. Examples of the fat include a solid catalyst component containing aluminum, magnesium, titanium, and a halogen as essential components, and a catalyst composed of an organoaluminum compound component and an electron-donating compound component of -12-200909211, and substantially no liquid medium exists. The polypropylene-based resin obtained by the gas phase polymerization is also used. The polyolefin-based resin which is suitable for forming the adhesion layer (heat-adhesive layer) of the polypropylene-based resin laminated film of the present invention has a melting point to form a base layer. The polypropylene resin is composed of a polyolefin resin having a low melting point, for example, an ethylene-1-butene copolymer, an ethylene-propylene-1·butene copolymer, an ethylene-acrylic acid copolymer, and cross-linking with a metal ion. Ionomer polymer of ethylene-acrylic acid copolymer, polypropylene, poly-1-butene, butene-ethylene copolymer, propylene-ethylene copolymer, propylene-1-butyl storage copolymer, propylene-ethylene-1·butyl One or more of an olefin copolymer and a propylene-pentene copolymer. Among them, a random copolymer of propylene and ethylene and an α-olefin having 4 or more carbon atoms is preferred, and the melting point is 140 t or less. The blended resin can be used in a range that does not impair the film properties, such as a polyester resin, a polyamide resin, a polycarbonate resin, etc. Further, an ultraviolet absorber, an antioxidant, an antistatic agent can be optionally blended. In addition, in consideration of economy, the polymerization method of the resin may be carried out by a method of gas phase polymerization in the same manner as the resin used in the base layer. The polypropylene resin laminated film of the present invention has a surface of the adhesion layer. Antifogging property is necessary. That is, when the polypropylene resin laminated film of the present invention is used for a film for packaging purposes, the blurring of the inner surface of the package is prevented, which not only increases the price of the product, but also prevents the blurring. It is also a very important characteristic to deteriorate the water content of the contents of the package caused by the water droplets formed. In this way, the method of exhibiting anti-fog property on the surface of the adhesion layer can be applied to the storage period or circulation. During this period, the antifogging agent is exposed (exuded) to the surface of the adhesion layer contacting the side of the fresh food. Further, in such a manner, in order to allow the antifogging agent to permeate the surface of the adhesion layer during the storage period or the circulation period, it is possible to employ an antifogging agent in advance in the production of the film (at the time of melt extrusion of the raw material resin). a method of at least one of a resin of a base layer and a resin forming an adhesion layer in such a manner that when it is used for melt extrusion of a raw material resin, compared with a method of applying an antifogging agent to a surface of a film, since an antifogging agent is blended When the method of forming the resin in the base layer forming resin or the adhesion layer is formed, it is possible to stably exhibit the antifogging property during the circulation period as the temperature of the cooling and heating is changed. Further, in the case of a method of melt-extruding a raw material resin, a method of blending an antifogging agent into a base layer forming resin or an adhesive layer forming resin, if an antifogging agent is blended in a base layer to form a resin and a close contact In the case of the layer-forming resin, it is preferable that the anti-fogging agent smoothly bleeds out over a long period of time. Further, in the case where only the antifogging agent is incorporated into the base layer forming resin, since the antifogging agent in the base layer forming resin passes through the adhesion layer and sequentially oozes out of the surface of the adhesion layer during storage or during the flow period, The surface of the adhesion layer gradually becomes a way of preventing fogging. In addition, in the circulation process, in order to make the long-term superior anti-fog property continuous, by preventing the blurring caused by the action of the contents of the package, even if the antifogging agent of the surface is washed away, the internal antifogging agent It is also necessary to quickly and effectively bleed out the surface of the adhesion layer one by one, and the surface of the adhesion layer becomes necessary to have an antifogging property. Therefore, in the setting of the antifogging property in the present invention, it is preferable to consider the re-discovery after the surface antifogging agent is wiped off -14-200909211. The antifogging agent used in the present invention is preferably a polyethylene oxide alkylamine type or a polyethylene oxide alkylamine fatty acid ester type 'fatty acid glyceride type' polyoxirane alkylamine type. : Polyethylene oxide laurylamine, polyethylene oxide tallow amine, polyethylene oxide stearylamine, polyethylene oxide oleylamine, polyethylene oxide tallow, propylene diamine, polyethylene oxide Alkyl stearin propylene diamine, polyethylene oxide-N-cyclohexylamine, polyethylene oxide m-xylene diamine. In addition, as a representative example of the polyoxirane alkylamine fatty acid ester type, a representative example of the polyethylene oxide alkylamine type is ester-bonded to the fatty acid shown below. It can be listed as stearic acid, behenic acid, lauric acid, oleic acid, palmitic acid, coconut fatty acid, tallow fatty acid, rapeseed fatty acid, ricin fatty acid, and myristic acid. Further, examples of the fatty acid glyceride type include: monoglyceryl myristate, monoglyceryl monostearate, monoglyceryl monoisostearate, monoglyceride monooleate, one olive oil monoglyceride, two oils Acid monoglyceride, monoglyceryl distearate, monoglyceryl undecenoate, and the like. In addition, in addition to the three anti-fogging agents, other anti-fogging agents may be added. Examples of such anti-fogging agents include diglyceryl monostearate, diglyceryl monoisostearate, and oleic acid. A polyglycerin fatty acid ester type represented by glycerin ester, dioleic acid diglyceride, triisostearic acid diglyceride or the like. In the present invention, the anti-fogging agent is suitable for anti-fog property, and the anti-fogging agent is suitable for the inner and outer surfaces of the composite film. 2~1. The range of 5 wt% is preferably 0·3~1. 2% by weight range, more preferably 0. 5~1. 0% by weight range. If the anti-fog dose is less than 0. At 2% by weight, it is not good because it does not exert the anti-fog effect of -15-200909211. On the contrary, if the amount of anti-fogging agent exceeds 1. When the amount is 5 wt%, the antifogging agent becomes saturated, and in addition to being economically unsatisfactory, since a large amount of the antifogging agent is transferred to the surface of the film, the surface of the film becomes a state in which the powder is sprayed, which deteriorates the appearance. On the other hand, in the polypropylene resin laminated film of the present invention, it is necessary to add inorganic fine particles to the resin forming the adhesion layer for the purpose of improving the anti-caking property or improving the smoothness. in. Such as . . The inorganic particles of this kind can be used with an average particle diameter of 1. 0~12. 0 "111, suitable for 1. 3~4. 0/zm, and the pore volume is 1. 0~2. 0ml / g, suitable for 1. 25 ~ 1. 80 ml/g of inorganic fine particles. If any of the average particle diameter and the pore volume is outside this range, good anti-caking property and smoothness are not obtained. That is, if the average particle diameter is less than 1. 0 # m, in addition to the film's anti-caking property will be insufficient, because the "H40 becomes difficult to adjust to 0. 2 or more, 1. In the range below 1 and vice versa, if it exceeds 12. 0/zm, because the appearance 'transparency will deteriorate badly. In addition, if the pore volume exceeds 2. For Oml/g, the dispersion will be worse when mixed with the resin, if less than 1. In the case of 〇ml/g, the scratch resistance is deteriorated, and the number of particles per unit weight is reduced. When the amount of particles is to be added in an equal amount, the amount of addition must be increased, which is not preferable because the transparency is deteriorated. As the inorganic fine particles, cerium oxide, magnesium citrate, aluminum silicate, calcium carbonate, magnesium oxide or the like can be suitably used. Among these inorganic fine particles, in particular, an average particle diameter of 1. 5~4. 0 // m, the pore volume is 1. 0~2. Oml/g of silica sand. Further, the blending amount of the inorganic fine particles is preferably 〇·〇5 -16 - 200909211 〜0. with respect to 100 parts by weight of the resin forming the base layer or the adhesive layer. 60 parts by weight. If less than 0. For 05 parts by weight, the anti-caking property will be insufficient, if it exceeds 0. When the amount is 60 parts by weight, the dispersibility is deteriorated, which causes deterioration in appearance and transparency. Based on the anti-caking property and the dispersibility, the blending amount of the inorganic fine particles is preferably 0. 10~0. 40 parts by weight. Make the average particle size 1. 5~4. 0/zm, the pore volume is 1. 0~2. 0ml/g of cerium oxide becomes 0. 10~0. It is particularly desirable to use 40 parts by weight of the blending amount. Further, the pore volume of the inorganic fine particles can be measured by a conventional method such as the method of IS-K-1 150 according to the BET method. In addition, the high-pressure specific surface area/fine pore distribution measuring apparatus ASAP 2400 manufactured by Quantachrome Co., Ltd., Autosorb 1 manufactured by Quantachrome Co., Ltd., or manufactured by Shimadzu Corporation, can be suitably used. Further, the polypropylene-based resin laminated film of the present invention must be easily identified in such a manner that the haze becomes 0. 4% or more, 5. Adjust by 0% or less. If the haze is more than 5. At 0%, transparency will become insufficient due to the use of fresh food packaging. In addition, the lower limit of the haze is suitably 0. More than 8 %, especially 1. 0% or more is particularly desirable. In addition, the upper limit of the haze is suitable for 4. 0% or less, especially 3. 5% or less is especially desirable. Further, although the haze is as low as possible, if it is indispensable to consider that the anti-caking agent is added to the resin, it is considered to be less than 0. A 4% polypropylene resin film is virtually impossible. Further, the polypropylene resin laminated film of the present invention is suitable for containing A1 of 15 mg/kg or more and less than 150 mg/kg in all the thin layers of the laminated film. In general, in the case of polymerization of polypropylene, an organoaluminum compound is used as a co-catalyst -17-200909211. In the case of a conventional polymerization method using a solvent method or the like, the organoaluminum compound is removed in accordance with the removal step of the chemical agent, according to In the polypropylene raw material obtained by the gas phase polymerization, it will occur because only the deactivation is caused, so that A1 exists in the raw material. That is, the presence of the A1 system in the film means a laminated film produced by using a polymer obtained by a vapor phase polymerization. Compared with the raw material obtained from the solvent method, the olefinic raw material is an economical raw material because of the polypropylene raw material non-chemical agent obtained by the gas phase polymerization, the removal step of the random polypropylene, and the energy consumption of removing the necessary solvent. The use of the laminated film of the raw material is also advantageous for the global environment, also known as the economical film, and the A1 content is preferably 20 mg/kg or less than 80 mg/kg with respect to all the thin layers of the laminated film. Also, the entire thin layer of the laminated film can contain a certain amount (about 1. The sample of 0 g) is subjected to dry decomposition, and after the measurement, the method of measuring by plasma luminescence analysis, etc., is obtained. Further, the polypropylene resin laminated film of the present invention has a shape: the resin of the layer is suitable for melt flow. The rate is adjusted to 1. 5g/10 on, 9. 0g/10min or less, or a mixed animal method of such a resin, by using a resin whose melt flow rate is adjusted or a resin for forming an adhesive layer, according to the granulated film described later The adjustment of the dynamic friction coefficient (#H40) or AR値 will be a pen. In addition, when the polypropylene resin laminated film is continuously produced and wound up, it will take a very long time until the physical stability is stable (about 40 °C). In the case of aging in a gaseous environment, the use of the physical properties of the laminated polymer of the present invention is required to be produced by the recovery step. In addition, the amount of A1 above is entangled with the acid to form a close contact with I. . The mixture is thin and easy. . The roll side is usually set to: Unstable -18- 200909211 The state will last for about 12 hours). Therefore, in such a manner, wrinkles are easily generated in the film cylinder by the fact that the physical properties of the film after the manufacture are unstable over a long period of time, resulting in tight entanglement. The inventors of the present invention have based on the above-described findings, and in order to perform the wrinkles in the film cylinder at the time of aging, as is generally considered, it is presumed that only the control of the friction coefficient is insufficient, and it is necessary to simultaneously satisfy the situation. The coiled films are moderately slid with each other (the surface of the film and the inside), and air is leaked from each other at a proper speed from the taken-up film. In addition, the case where the wound film is slid with each other is presumed whether it can be estimated from the dynamic friction coefficient (i.e., A H40 ) of the film (the film after aging) which is stable in physical properties, or is taken from the taken. The ease of air leakage between the films can be estimated based on the AR of the physical stability of the film (Air Leakage). Moreover, according to these inferences, the relationship between the degree of wrinkle generation during aging and the /z H40 and AR値 of the film with stable physical properties, as a result of the drill collar, in the film of physical stability, ΜH40 and AR値 are in a predetermined range. In the case of the inside, it is clear that wrinkles are not generated in the film cylinder during aging. However, in the film of the polypropylene-based resin laminated film of the present invention which requires low haze (i.e., high transparency), the type or amount of the added lubricant is greatly limited, and it is not only simply adjusted. In the case of the type or amount of the lubricant, it is considered impossible to control #Η40 and AR値 within the required range, and control of the degree of dispersion of the lubricant in the resin is necessary. Therefore, 'the inventors of the present invention consider the degree of dispersion of the lubricant in the resin' and continue to try the wrong result, according to the method described later (refer to paragraphs -19-200909211, paragraph 0053~0064), without using a large amount of lubricant, The polypropylene resin film which satisfies the required haze, the required #Η40, and the required AR値 can be obtained, and the invention of the present invention is obtained. That is, the polypropylene resin laminated film of the present invention has a dynamic friction coefficient (i.e., V Η 4 0 ) measured in a gas environment of 4 (rc). 2 or more and 1 · 1 or less are necessary. If /ζ Η 4 0 is less than 〇. At 2 o'clock, the films will excessively slide each other 'rolled into a cylindrical shape' because the winding misalignment will occur rather than the opposite. If // Η 4 0 exceeds 1:1, the lubricity is poor. After the coil is taken up in a cylindrical shape, it is not preferable because it collapses in the film cylinder. Also, the lower limit of Μ Η 40 is suitably 0. 3 or more, especially 0. More than 35 is particularly desirable. In addition, the upper limit of #Η40 is suitable to be 1. 〇 below, especially 0. 95 or less is particularly desirable. Further, in the polypropylene resin laminated film of the present invention, when the film is superposed after two films are superposed, the air leakage index (that is, AR) from the time when the gas between the films leaks light must be 1 · 8 seconds. Above, 1 〇. Less than leap seconds. When the polypropylene resin laminated film is wound into a cylindrical shape and formed into a film cylinder, it is preferable to take up a certain amount of air while winding it. When the amount of entrapment is small, in addition to the tendency to agglomerate, as in the case of the polypropylene-based resin laminated film of the present invention, since the glass transition temperature is a negative region, dimensional change is caused even at normal temperature. Also, dimensional changes occur due to the overlapping films adhering to each other because wrinkles occur poorly. In particular, in the stretched film, it becomes easy to cause collapse in the direction of residual stress after stretching. On the other hand, if the air is excessively entangled, the film is arbitrarily deformed by the overlapping -20-200909211 film, or the film is loosened in the film, or the film is formed in a direction perpendicular to the flow direction of the film. Moreover, if the AR 値 is below K8 seconds, 'because the entrapped air will disappear immediately, the films will agglomerate with each other, or the residual stress during stretching will not be good in the film cylinder of the product. 'Right AR値 is above 10_0 seconds, because the entrapped air always maintains 'wrinkles in the film, or wrinkles in the product film cylinder' in the vertical direction relative to the film flow direction. . Also, the lower limit of 'AR値 is preferably 2. 0 seconds or more, especially 2. More than 5 seconds is especially ideal. In addition, the upper limit of 'A R値 is preferably less than 9 · 0 seconds, especially 8 . It is especially ideal for 〇 seconds. In addition, the polypropylene resin laminated film of the present invention is preferably applied to a pressure of 1 kg/m 2 for 1 second to heat-adhere the adhesive layers to each other, and then the thermocompression bonding portions are subjected to 18 The strength at the time of 0 degree peeling (so-called adhesion strength) is suitably 1_5N/15mm or more and less than 6. 0N/15mm. If the adhesion strength is less than 1. When 5 N/1 5 mm is used for packaging purposes, the bag will become too easy to open, and conversely, if the adhesion strength is 6. When it is 0N/15 mm or more, it is difficult to open the bag when it is used for packaging purposes. Also, the lower limit of the adhesion strength is suitably 2. ON/15mm or more, especially 3 ‘ON/1 5 mm or more is particularly desirable. In addition, the upper limit of the adhesion strength is preferably less than 5 · 0 Ν / 15 mm, especially less than 4. 0N/15 mm is especially ideal. On the other hand, the polypropylene resin laminated film of the present invention has a wetting tension on the surface of the adhesion layer of 35 mN/m or more and 45 mN/ based on the printability and the antifogging effect reproducibility obtained by the antifogging agent. m below is necessary - 21092092. Further, the lower limit of the wetting tension on the surface of the adhesion layer is preferably 37 mN/m or more, and on the contrary, the upper limit of the wetting tension on the surface of the adhesion layer is preferably 43 mN/m or less. If the wetting tension is less than 35 mN/m, the discovery of the antifogging effect on the surface of the film becomes poor. On the contrary, when the wetting tension exceeds 45 mN/m, the agglomeration or wall damage becomes easy to occur. . Thus, a suitable method for producing a polypropylene resin laminated film of the present invention will be described. The formation of the unstretched film is preferably carried out by supplying a resin for forming a base layer mainly composed of crystalline polypropylene propene and a resin for forming an adhesive layer mainly composed of polyolefin to another extruder, and heating and melting the filter after passing through the filter. After laminating the resin for forming the base layer and the resin for forming the adhesive layer in a temperature of 220 to 3 at 20 ° C in a T-die, the melt is extruded by a slit-shaped T-die outlet. Cooling solidifies to form a continuous unstretched film. At this time, if the resin is dropped on the drum-shaped extractor (cold-hardened roll), from the opposite side to the surface of the chill roll, the air blown by the air knife, because the unstretched sheet and the chill roll The adhesion will be increased, and C can be obtained to obtain an unstretched sheet having a smooth surface and a uniform thickness. At this time, the air pressure of the air knife is suitably set to a range of 700 to 2200 mmH2. If the wind pressure is low, it is not preferable because the unstretched sheet and the chill roll become uneven. On the contrary, if the wind pressure is high, because the unstretched sheet and the turbulent chill roll The closeness becomes uneven and not good. Further, as described above, the temperature of the resin at the time of melt extrusion is a temperature range in which the resin is not deteriorated, and is preferably in a temperature range of about 2 to 30 °C, preferably about 270 to 280 °C. -22- 200909211 In addition, the resin temperature of the resin for forming a base layer mainly composed of crystalline polypropylene which is subjected to melt extrusion and the resin for forming an adhesive layer mainly composed of polyolefin, and the case where the respective resins have a clear melting point Next, it is suitable for a temperature higher than the melting point of 60 ° C or higher, and is preferably a temperature higher than 70 ° C and not subject to thermal deterioration. When the resin temperature is within such a temperature range, the influence of the melt deformation relaxation time distribution depending on the molecular weight distribution of the polyolefin resin at the time of melt extrusion can be reduced, so that the thickness unevenness of the unstretched sheet can be reduced. In addition, the temperature of the chill roll is suitably adjusted to 3 (temperature below TC, more preferably adjusted to 20 ° C or less. If the resin temperature at the time of melt extrusion is low and the chill roll temperature is high, since it is easy to carry out When the resin is crystallized, the surface of the film becomes rough and the thickness unevenness is liable to occur. As described above, after the unstretched film is formed, the biaxial stretching of the unstretched film is performed to double Shaft alignment. The stretching method may use a sequential biaxial stretching method or a simultaneous biaxial stretching method. The sequential biaxial stretching method can adopt the following method: heating the unstretched film to 9 〇 14 14 〇 its temperature 'Stretching 3 to 7 times along the long axis direction, and then from the post-cooling, the tenter stretcher is heated to a temperature of 130 to 175 t, and stretched in the width direction to 7 to 12 times. After the temperature is fixed by heat setting (heat treatment), it is relaxed by 2 to 15% in the width direction, preferably 4 to 1% by weight, and then taken up after cooling. In this way, by stretching, one side is relaxed and heat-fixed. Due to the elimination of the dependence on poly (hydrocarbon resin) The melt deformation of the molecular weight distribution is skewed, and the physical properties such as the heat shrinkability of the laminated film are stabilized throughout the entire width of the film. As a result, the shrinkage and dimensional change of the close-contact portion during heat sealing are reduced, and further, -23-200909211 A good-looking package without deformation of the close-up portion will be possible, and a suitable heat-fixing method will be described later. The ratio of the thickness of the adhesive layer deposited on the base layer is not determined, usually, relative to the laminate. All thin layers of the film (the base layer and the dense ratio are suitably 1/60 to 1/3 (in the thickness of the two layers of the base layer), preferably 1/50 to 1/5, especially 1/30 to 1/1 10 The thickness ratio of the special layer is less than 1/60, because the bagging strength becomes insufficient, the reliability of the package will become insufficient, and if the thickness ratio of the adhesion layer is 1/3 In large cases, because the proportion of the starting part is small, in the entire laminated film, the so-called "loss", the shape of the package after filling the contents will become unsatisfactory and the price is not good. In addition, the thickness of the laminated film is A film for packaging that does not have high anti-fog properties The thickness of the laminated film is preferably from about 60 to 60 m. Further, the polypropylene resin laminated film of the present invention is preferably used for the use of fresh food such as packaged vegetables. It has a break-tightness. Specifically, it is adjusted to a tip temperature of 60 degrees and adjusted to 39 (TC fuse-sealing machine, using the actual temperature of the tip of the knife tip) 370 ° C, 120 bags / minute shot When the speed is in the form of a fuse-sealed bag, the ratio of the defective ratio of the formed fusion-sealed bag (the molten state and the disconnected state may be 5% or less), and the defective ratio is preferably 4% or less. | can also be special limited layer), when it is a combination of ideals. The working time is not good. Another because of the grassroots waist will be lack of goods: not limited, 7 0 / m range of 15 It is preferable to use a good melting degree and a knife temperature C knife to form a film of 1 000 pieces.) It is more preferable to use 3% (for 3% to -24-200909211), preferably 2% or less, especially 1% or less. Further, the polypropylene resin laminated film of the present invention can be subjected to surface treatment such as corona discharge treatment or flame treatment on one side or both side surfaces. There is also a method for treating a preferred corona discharge, which will be described later. Further, in order to obtain the polypropylene-based resin laminated film of the present invention, it is necessary to take the following means (1) to (4) at the time of production. By such a means, "anti-fogging property, transparency, blocking resistance, and smoothness are good", and it is possible to obtain a film which is less likely to wrinkle when wound into a cylindrical shape. Further, by adopting the means (5), it is possible to stably manufacture a long strip film. (1) Adjustment of dispersion conditions of inorganic fine particles in the adhesion layer forming resin (2) Adjustment of ethylene content in the base layer forming resin (3) Adjustment of heat setting conditions after transverse stretching (4) Corona discharge treatment conditions (5) Adjustment of the shape of the laminated resin sheet Hereinafter, the above respective technical means will be described in order: (1) The dispersion condition of the inorganic fine particles in the adhesion layer forming resin is adjusted to the polypropylene resin layer of the present invention. In the production of a film, when the inorganic fine particles are added to the polyolefin-based resin forming the adhesion layer, not only the inorganic fine particles of the powder are added to the extruder, but also the high-concentration inorganic is prepared in advance. The masterbatch polymer chip in which the fine particles are added to the polyolefin-based resin must be blended with a polyolefin-based resin containing no inorganic fine particles to dilute the masterbatch. -25- 200909211 In addition, the masterbatch to form the adhesion layer must be added to the polyolefin resin by the inorganic fine particles, and after stirring with a mixer or a blender, the mixture is poured into the extruder. After mixing and melt-extruding to form a nine-grain shape, the mixture is mixed with the polyolefin-based resin chips containing no inorganic fine particles and used (hereinafter, as described above, the inorganic fine particles are added to the resin and stirred, and then poured. Into the extruder, the steps of mixing and melt-extruding to form a nine-grain form, this step is referred to as a granulation step). In addition, 'the formation of the masterbatch chip of the adhesion layer, it is necessary to use only one mixing step (one granulation chip) and two times the mixing step (two granule chips) . In addition, in such a manner, in the case of using one granule chip and two granule chips, the mixing ratio of one granule chip to two granule chips is suitably adjusted to 1: 9 to 9: 1 Within the scope. In addition, when the granules and the granules are granulated once, it is preferable to make the particle size of the inorganic granules added at the time of forming the granules once and the granules twice. The particle size of the inorganic fine particles to be added at the time of formation is close to each other, that is, when the granule chips are used once and the granule chips are granulated once, the inorganic fine particles added at the time of forming the granule chips once The difference between the particle diameter and the particle diameter of the inorganic fine particles added at the time of formation of the granule chips is preferably less than 2. 0/zm. When the adhesion layer is formed, if only the secondary granules of the inorganic fine particles having a small particle diameter of less than 1,5 /zm are added, since the v H40 will increase, the smoothness will deteriorate. When it is in the form of a roll, wrinkles are less likely to occur in the film cylinder. Further, in this manner, if wrinkles are generated in the film cylinder, 'there will be tightly wound when stored in the film cylinder, and the air entrapped between the films -26-200909211 will become less. The anti-fog property of the oozing 'film will deteriorate. In addition, when wrinkles are formed in the film cylinder, when the bag processing (lamination processing) is performed after the melting, the bag cannot be beautifully formed, and the appearance of the formed bag is deteriorated. In addition, when only the primary granules in which the above-mentioned large-sized inorganic fine particles are added are used, the AR 値 is extremely small, and the air entrained between the films is reduced as described above because of the film. When the cylinders are stored, the overlapping films are deformed in accordance with each other, and it is less likely to cause collapse in the film cylinder. Further, similarly to the above, the antifogging agent becomes difficult to bleed out, and the antifogging property of the film is deteriorated. In addition, when only one granulated chip having a small particle diameter inorganic fine particle of less than 1 · 5 /zm is used, since the dispersibility of the inorganic fine particles is insufficient, a fisheye (bright spot) is formed on the film. It is not good to look bad. Further, in the range where the fusion adhesion strength is not deteriorated, the masterbatch sheet forming the adhesion layer is used in addition to the primary granule chips and the secondary granule chips to which the inorganic particles have been added. It is also possible to add granule chips of organic fine particles. In addition, as described above, in the case of mixing, it is preferable to adjust the number of revolutions of the rotating material such as the screw of the extruder to l 〇〇 rprn or more and 500 rpm or less, preferably to 250 rpm or more and 450 rpm or less. It is particularly preferable to adjust to 270 rpm or more and 43 rpm or less. Further, when the granulation is carried out twice as described above, it is preferable that the number of rotations of the first granulated rotating material is higher than the number of rotations of the second granulated rotating material. (2) Adjustment of the content of the ethylene in the base layer forming resin In the production of the polypropylene resin laminated film of the present invention, as described above, -27 to 200909211, various polypropylene resins containing polypropylene as a main component can be used as the base layer. Among the polypropylene-based resins, it is preferred to use a copolymer of polypropylene and ethylene or a modified product thereof. Further, among such copolymers or modifications, the content of ethylene suitable for use is 0. 5 wt% or more, less than 1. 5 wt% resin. By using such a resin, the antifogging agent added to the base layer is likely to bleed out, and the antifogging property (initial antifogging property and antifogging durability described later) of the polypropylene resin film is particularly improved. If the ethylene content in the copolymer constituting the base layer becomes 1. When the amount is 5% by weight or more, the film will soften and become difficult to smooth, and the VH40 will become large. In addition, the AR 値 will increase, and the air will become difficult to leak from the film taken up, and wrinkles will easily occur in the film cylinder. Further, the film becomes easily heat-resistant, the haze is increased, and the transparency is lowered. On the contrary, if the content of ethylene is less than 〇·5% by weight, 'except that the antifogging agent becomes difficult to bleed out, and it becomes impossible to obtain good antifogging property' because the viscosity of the melted portion will be lost and the melted portion will be lost. The shape will collapse, the good adhesion strength will not be obtained, or the melt adhesion during the bag making process will deteriorate. (3) Adjustment of heat-fixing conditions after the transverse stretching The polypropylene-based resin laminated film of the present invention is formed as described above by using a co-extrusion method to form an adhesive layer on the base layer. The stretched film is stretched along the longitudinal and transverse biaxial axes and then thermally fixed. In the production of such a biaxially stretched film, in the case of the production of a conventional polypropylene resin film, it is heat-fixed to a normal temperature by slightly lowering the melting point of 15 5 ° C or more and lower than 1 60 ° C. 'In order to obtain the -28 - 200909211 film of the present invention, the film must be heat-fixed at a temperature higher than the above-mentioned higher than 160 ° C and lower than 170 ° C. In this manner, by the heat setting treatment at a high temperature, the shrinkage stress of the film is removed, and the change over time after being wound into a cylindrical shape is suppressed, and the occurrence of wrinkles is reduced to an extremely low level. Therefore, there is no possibility that the antifogging agent is bleed out due to wrinkles, and the film antifogging property is not deteriorated. In addition, things that are caused by the bag making process that occurs during the break or the deterioration in the printing process do not occur. If the temperature of the heat setting treatment exceeds 170 °C, the surface of the film will melt and cause heat resistance and roughness, and the H40 will decrease and become easy to slide, although the air between the films becomes easy to leak (AR becomes smaller) because The transparency or appearance of the film will become poor and it will become unsatisfactory to use. On the other hand, if the temperature of the heat setting treatment is lower than 16 CTC, it becomes easy to be cold, and when the surface is recrystallized, in addition to the growth of the spherulites and the deterioration of the transparency, the shrinkage stress of the film also becomes large, with time. The change has also become larger. It is not easy to wrinkle in the film cylinder during storage. (4) Adjustment of corona discharge treatment conditions In the production of the polypropylene resin laminated film of the present invention, it is necessary to perform corona discharge treatment on the surface of the film by using predetermined conditions. That is, the corona discharge treatment can be carried out by various methods [suitably based on the aluminum rod-type electrode suspended in the width direction of the film], and it is preferable to carry out the film and the electrode on the surface of the film after biaxial stretching. The interval was adjusted to 1 to 3 mm, and the processing power was 15 to 45 W/m 2 /min. Moreover, the surface wetting characteristics of the film after corona discharge must be adjusted to a range of 35 mN/m or more to 45 mN/m or less. If the degree of corona discharge treatment is weak, it will be difficult to seep out of the outside, and the smoothness will deteriorate (^H40 will increase), and the air becomes difficult to leak (AR値). Will increase). Further, during the bag making process, the sliding of the two folded films will deteriorate, and the friction between the bag making machine and the film will increase, and the beautifully sealed fusing bag will not be realized. Further, the internal antifogging agent also becomes difficult to bleed out to the outside, making it difficult to exhibit good antifogging properties. In addition, if the degree of the corona discharge treatment is enhanced, the surface of the film will be destroyed (the surface unevenness due to the corona discharge treatment will be formed), and if the improper situation is to be eliminated, the smoothness will become a good thing (/z In addition to H40, the air becomes easy to leak (AR 値 will decrease), and if the degree of corona discharge treatment becomes extremely strong, the so-called "surface roughness" on the surface of the film becomes serious, except that "The surface layer is rough", the transparency will become lower (the haze will increase), and the bleeding rate of the added anti-fogging agent or the like will become extremely fast, and the presence of a large amount of anti-fogging agent will also pass over time. A situation that leads to a deterioration in transparency. Further, since the film surface additive or the resin is deteriorated to become a low molecular weight substance, it tends to become sticky and easily agglomerate. At this time, when the bonded films are peeled off, since the one-side antifogging agent is peeled off, the antifogging property is also lowered. Therefore, in order to show sufficient anti-fog property and transparency, it is found that good fracture tightness is exhibited, and in order to control the enthalpy of A H40 and AR. Within the range, it is preferable to perform corona discharge with moderate strength. -30- 200909211 The treatment is therefore effective in performing corona discharge treatment according to this form. (5) Adjustment of the shape of the laminated resin sheet In the production of the polypropylene resin laminated film of the present invention, when the laminated resin sheet is formed by the coextrusion method, it is necessary to melt the base layer from the second extruder. The resin for forming and the resin for forming an adhesion layer which is melt-extruded from the second extruder are laminated in the T-die, and when the molten resin is laminated, the adhesion in the T-die is narrowed by the base layer. The passage portion of the resin for layer formation is preferably formed of a laminated resin sheet which is formed by laminating the base layer and a seal layer having a narrower width than the base layer from the outlet of the T die. Specifically, the spacer is assembled into the left and right end edges of the passing portion of the resin for forming the adhesion layer in the T-die, and the base layer and the tight layer having a narrower width than the base layer are formed from the exit of the T-die. Laminated resin sheet. When the specification is specifically described for the technique, the problem at the time of manufacturing the product cylinder is at the end of the film at the time of film formation, and in the case of laminating a low-melting resin such as the laminated resin film of the present invention, since the film is adhered to the transverse direction On the tenter clip when stretched, when the film is peeled off from the tenter clip, the film cracking problem may occur. In particular, when film formation is performed at a high speed, this problem tends to become remarkable. In addition, in the case of continuously producing a film, most of the steps of cutting the nip portion of the tenter clip, and then returning to the raw material funnel of the extruder after pulverization, at this time, if the occlusal portion is laminated with a low-melting material, the occlusal portion will It is difficult to stick the 'cutting, supplying to the pulverizer, and pulverizing, and the nip portion will be agglomerated, causing problems such as the inability to supply. Therefore, when the resin supplied from the extruder is laminated in the T-die, the layer deposited on the surface layer is not laminated to become the clip nip portion by inserting the spacers 31-200909211 into the ends of the τ die. Both sides of the film can reduce the occurrence of this problem, and thus, stable and continuous production is possible. Hereinafter, the characteristic armor used in the present specification (the dynamic friction coefficient (#Η40) in 40°C) is shown to be wound into a film of a predetermined size so that the flat 500 square rectangular parallelepiped layer formed on the lower surface is formed to the outside. ), using a moving film to cover the underside of the mounting frame (vertical X horizontal = other, in a part (over a portion of 20 cm length) 40 ° C horizontal abutment, so that the tight layer is broken upwards The mounting frame is a sufficiently large other film (fixed film). The mounting frame with the moving film is placed on the fixing film, so that the adhesion layer of the moving layer and the fixing film is 'joined, and in this state, it is set to 2. The speed of 5 m/min is used to stretch the mount to the hot part. Then, the heating portion was calculated by moving the AH40. Further, the film for measurement was subjected to aging in a gas atmosphere of 23 ° C for 12 hours or more, and was measured in a gas atmosphere of 23 ° C and 65 RH %. In addition, the measurement was repeated five times, and the average enthalpy was used as #H40 (Air Leakage: AR). The air leakage velocity of the film was shown in Fig. 1. That is, the film 4 is placed on the ring-shaped stage 1 by a low-melting resin type, and the product cylinder is measured. On the rack, the dense film (moving 7cmx5cm) ° has been heated to the attached cut. Thereafter, the adhesion of the moving film was calculated by using the coefficient of friction driven by the base, and 65 RH% itself was calculated by the system replacement test. The apparatus performs measurement, and the annular film compact 2 is placed on the stage 1 from above the film 4 - 32 - 200909211, and the film 4 is fixed in a state where tension is applied. Next, another film 5 is placed on the film compact 2, and another annular film press 8 is further placed on the film 5, and screws 3 are used to fix the film compacts 8, 2 and the stage 1. Here, the film pressed product 2 includes: a circular hole 2a in the upper surface, a fine hole 2c communicating with a portion of the groove 2a and an outer portion of the film compact 2; and a portion connecting the groove 2a and the film compact 2 holes in the inner part of the hole 2d. Further, any of the two films 4 and 5 is provided so as to be wound into a cylindrical shape so that the outer surface becomes the upper side. As described above, after the film is placed, the vacuum pump 6 connected to the fine hole 2c by the transmission line 7 is operated, and the film 5 is sucked by the groove 2a, and the tension is applied. Further, since the film overlapping portion X in which the film 4 and the film 5 overlap is also decompressed through the pores 2d in the film compact 2, the film 4 and the film 5 are interposed between the overlapping portions X, starting from the peripheral portion. Close to. The close contact state can be sufficiently grasped by observing interference fringes from the upper portion of the film overlapping portion X. Further, after the interference fringe is generated outside S of the film overlapping portion X, the minute streaks are expanded to the entire surface of the film overlapping portion X. The time (seconds) from the measurement of the interference fringe until the stop is performed, and this time (second) is set to " Air leak index." Further, the measurement system was repeated five times by replacing two film samples, and the average enthalpy was set to AR 而 and then calculated. [Haze 値] The obtained biaxial alignment film was cut into a predetermined size and measured in accordance with JIS K7136' using a haze meter (3〇〇A, manufactured by Nippon Denshoku Industries Co., Ltd.) -33-200909211. Further, the measurement system was changed five times by changing the sample, and the average enthalpy was determined. [Initial antifogging property] The antifogging property of the film was measured in the following order: ' (1) 300 ml of warm water of 50 ° C was added to a 5 〇〇 mL upper open vessel. (2) The anti-fogging property measurement surface of the film is used as an inner side, and the opening of the container is sealed by a film. (3) After being placed in a cold room at 5 ° C, it was taken out at room temperature (about 23 ° C), and the following six stages were used to evaluate the adhesion of the dew on the film measurement surface. In addition, the measurement system is repeated five times, and the average level is set as the initial anti-fog property (for example, in the case where each of the five levels is 6, 6, 5, 4, 4) For level 5). Assessment level 6: no dew on the entire surface (attachment area = 〇) Assessment level 5: some dew adhesion (until the attachment area is 1 /5): Assessment level 4: slightly dew adhesion (until the attachment area I/4) % Evaluation level 3: Approx. 1 /2 dew adhesion (until the adhesion area is 2/4) Assessment level 2: Almost dew adhesion (until the adhesion area is 3 / 4) Assessment level 1: full dew adhesion (above 3/4 area) [anti-fog persistence The antifogging property of the film was measured in the following order: (1) 300 mL, 5 (TC warm water was added to a 500 mL upper open container. -34- 200909211 (2) The antifogging measurement surface of the film was used as the inner side. The film was used to seal the opening of the container. (3) Placed in a cold room at 5 ° C. (4) After standing in a cold room at 5 ° C for 12 hours, it was moved to an environment of 30 ° C and left for 12 hours. (5) After repeating the operation of (4) for 2 days, the following six stages were used to evaluate the dew adhesion state of the film measurement surface. Further, the measurement system was changed 5 times repeatedly by changing the sample, and the average level was set to be anti-fog. Persistence (for example, in the case of '5 measurements, each level is 6, 6, 5, 4, 4, set to 5) Assessment level 6: no dew on the entire surface (attachment area = 〇) Assessment level 5: some dew adhesion (until the attachment area is 1/5) Assessment level 4: slightly dew adhesion (until the attachment area is 1/4) Assessment level 3: approx. /2 dew adhesion (until the adhesion area is 2/4) Evaluation level 2: almost dew water adhesion (until the adhesion area is 3 Μ) g flat evaluation level 1: whole surface dew adhesion (attachment area 3 / 4 or more) [fuse adhesion 】 Using a fuser (Japan Kyori Machinery Material Co., Ltd.: PP5〇〇 Side Welding), the following conditions are used to make a film-sealed tight-fitting bag (200mm x 300mm). Then, every 1〇 The defective ratio of the blown-sealed bag made of the cymbal sheet is determined by the fusion-bonding property. Condition: @ Broken knife; the blade tip angle is 60 degrees, the blade tip setting temperature is 390 °C, and the blade tip actual temperature is 370°. C, the number of shots: 120 bags / min. [Heat tightness] -35- 200909211 The product is cut into a sample with a width x length of 500 mm and then sampled. 'Divided by 3 along the width, from the center of each. Sampling a sample with a width of 50 mm x 250 mm in the longitudinal direction to make the dense The sample was folded in half, and the hot plate was tightly bonded under the conditions of a heat sealing temperature of 140 ° C, a pressure of lkg/cm 2 , and a heat sealing time of 1 second to prepare a test having a width of 15 mm. The test piece was measured for 180-degree peel strength and set to heat-adhesive strength (N/1 5 mm). Further, the measurement was repeated five times with the biaxially stretched film sample, and the average enthalpy was calculated. Tension] The measurement was carried out in a gas atmosphere of 23 ° C and 65% RH in accordance with JIS-K-6768. Further, the measurement was repeated five times with the biaxially stretched film sample, and the average enthalpy was calculated. [Melting Flow Rate (MFR)] The measurement was carried out by the method of Condition-14 in accordance with IIS K7210. In addition, the measurement was repeated five times with the replacement of the raw material resin sample, and the average enthalpy was calculated. [Ethylene content] Further, the ethylene content in the propylene-ethylene copolymer is used in the method disclosed in the Polymer Analysis Manual (published in 1995, Kiyoshiya, Japan) on pages 615 to 617, according to 1 3C-NMR spectroscopy. Decide. It is also possible to use the method described in the "(i) Random Copolymer" on page 256 of the same book, and it is also possible to determine by IR spectroscopy. [Average particle diameter of inorganic fine particles] The Coulter Counter Multisizer was used to measure the weight distribution, and the -36 to 200909211 50% diameter was expressed as an average particle diameter. The average particle diameter is determined by the treatment, or the residue after the is film is obtained, and the average particle diameter is also [the pore volume of the inorganic fine particles]. According to the BET method, JIS-K [wrinkle of the product film cylinder] is used. In a gas atmosphere of 40 ° C, the aging of the polypropylene-based resin film undergoes the following criteria to determine whether there are wrinkles: 〇... no wrinkles △... although there is no wrinkle, X...wrinkles as a whole EXAMPLES Hereinafter, the details of the examples are not limited by the shape of the examples, and it is possible to change them as appropriate. The properties, composition, and adhesion layer composition of the I chips A to G are shown in Tables 1 and 2 from the biaxially stretched film, and the results obtained by treatment with an acid or the like are thin. -1 1 5 0 method and measured. 1 hour, coiling into a cylinder: visually observing the film cylinder, according to the invention, the yield of the product is poor, but the present invention does not deviate from the materials used in the examples and comparative examples of the present invention. Conditions, Examples and Comparative Examples -37-200909211 [Table 1] (Part 1) Inorganic and organic addition amount First granulation conditions Particle type (wt%) Granulation temperature condition rc) Screw feeder filter sieve Hole rotation number rotation number cylinder 1 cylinder 2 cylinder 3 cylinder 4 adapter die construction (rpm) (rpm) nine A Silysia350 2. 0 200 210 220 220 220 220 50/100/50 300 20 Nine B Silysia 350 2. 0 200 210 220 220 220 220 50/100/50 300 20 Nine C Silysia 350 2. 0 200 210 220 220 220 220 50/100/50 220 20 Nine D Silysia 350 2. 0 200 210 220 220 220 220 50/100/50 220 20 Nine E Silysia 310P 2. 0 200 210 220 220 220 220 50/100/50 300 20 Nine F Silysia 420 2. 0 200 210 220 220 220 220 50/100/50 300 20 Nine G CS18 2. 0 200 210 220 220 220 220 50/100/50 300 20 [Table 1] (2) 2nd granulation conditions granulation temperature condition rc) Filter sieve screw feeder structure rotation number rotation number cylinder 1 round Cartridge 2 Cylinder 3 Cylinder 4 Adapter die (rpm) (rpm) Nine A N N B 200 210 220 220 220 220 50/100/50 220 20 N 9 C D 200 210 220 220 220 220 50 /100/50 220 20 Nine grains E Nine grains F Nine grains G - - -38- 200909211 [Table 2] Composition of the adhesive layer of the resin (wt%) A breakdown of the basic raw materials (Wt%) Addition amount of the additive (Wt%) FSX66E8 BH180EL-2 Stearic acid monoglyceride erucamide amide Example 1 A/B/basic starting material = 2. 5/123/85. 2 68. 7 16. 0 0. 4 0. 1 Example 2 C / B / basic raw materials = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Example 3 G / F / B / basic raw materials = 15 / 6. 15/6. 15/85. 2 68. 7 16. 0 0. 4 0. 1 Example 4 A / B / basic raw materials = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Example 5 A / B / basic raw materials = 5. 0/10. 0/85. 0 68. 5 16. 0 0. 4 0. 1 Example 6 A/B/basic material=1. 2/17. 5/81. 3 64. 8 16. 0 0. 4 0. 1 Example 7 A / B / basic raw materials = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Example 8 A / B / basic raw materials = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Example 9 A7B / basic raw material = 2512. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Example 10 A / B / basic raw materials = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Comparative Example 1 B/Basic Material = 14. 2/85. 2 68. 7 16. 0 0. 4 0. 1 Comparative Example 2 A/basic material = 14. 2/85. 2 68. 7 16. 0 0. 4 0. 1 Comparative Example 3 A/E/Basic Material = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 Comparative Example 4 C/D/Basic Material = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 | Comparative Example 5 A/B/Basic Material = 2. 5/12. 3/85. 2 68. 7 16. 0 0. 4 0. 1 -39- 200909211 [Preparation of anti-caking agent masterbatch] RW140EG in propylene-ethylene copolymer powder (manufactured by Sumitomo Chemical Co., Ltd., ethylene content 4. 0% by weight, melt flow rate 5. 0 g/10 min), blending 0. 15 parts by weight of Irganox 1010 (manufactured by Ciba Specialty Chemicals Co., Ltd.), 0. 15 parts by weight of Irgafos 168 (manufactured by Ciba Specialty Chemicals), 2. 0 parts by weight of Sylysia 350 (Japan Fuji Silysia Chemical Co., Ltd., cerium oxide powder, average particle size 1. 8# m, pore volume 1. 60 ml/g) As the inorganic fine particles, a total weight of 20 kg was set, and mixing was carried out for 5 minutes at a peripheral speed of the stirring blade tip of 20 m/sec using a 115 L super mixer. Next, a 45 mm 4) twin-screw extruder (screw diameter 43 mm (J), L/D: 1 9. 5), after the number of revolutions of the screw and the number of revolutions of the feeder were adjusted to 300 rpm and 20 rpm, respectively, only one granulation was performed to obtain nine A. In addition, after the same mixed raw material was granulated under the same conditions as the nine A (first granulation), the same number of revolutions of the screw and the rotation of the feeder were used using the same twin-screw extruder. The number was adjusted to 220 rpm and 20 rpm, respectively, and granulation was again performed (second granulation) to obtain nine tablets B. On the other hand, using the same twin-screw extruder, the same mixed raw material was adjusted to 220 rpm and 20 rpm under the conditions of the number of revolutions of the screw and the number of revolutions of the feeder, respectively, and only one granulation was performed. Get nine capsules C. Further, after the same mixed raw material was granulated under the same conditions as the nine C (first granulation), the same twin-screw extruder was used, which was the same as the first granulation. After granulation (second granulation), nine grains of D were obtained. -40- 200909211 In addition, the inorganic fine particles were changed to Sylysia 310P by the adjustment of the mixed raw materials (manufactured by Fuji Silysia Chemical Co., Ltd., cerium oxide powder, average particle diameter 1. 4/zm), Sylysia 420 (manufactured by Fuji Silysia Chemical Co., Ltd., cerium oxide powder, average particle size 1 · 9 μ m, pore volume 1. 25 ml/g) was subjected to granulation only once under the same conditions as the nine tablets a to obtain nine E and F. Furthermore, organic fine particles (CS18, average particle size 1. by Sumitomo Chemical Co., Ltd.) were added by adjustment of the mixed raw materials. The polymer beads of 8/zm were substituted for the inorganic fine particles, and were granulated only once under the same conditions as the nine particles a to obtain nine enamels. Further, in the granulation of the nine A-G granules, the sieve structure was made into a 5 〇 sieve hole n 〇〇 sieve hole 〇 〇 sieve hole, and the first to fourth cylinders, the adapter, and the mold were respectively The head temperature was adjusted to 200 ° C, 210 ° C, 220 ° C, 220 ° C, 220 ° C, 220 ° C (refer to Table 1). [Example 1] <Preparation of Adhesive Layer> The anti-caking agent masterbatch was placed in an extruder (L/D: 29) of 115 ηηηηφ, and the following raw materials were melt-mixed to form a heat-adhesive layer: 2.5% by weight of A 12.3 wt% of nine bismuth, 6.78% by weight of FSX66E8 as a base material (a polypropylene resin manufactured by Sumitomo Chemical Co., Ltd. manufactured by a gas phase method, a storage content of 2.5% by weight, a 1-butene content of 7.0) B% 180% by weight of a melt flow rate of 3.5 g/l/min) and 16.5% by weight (a polypropylene resin manufactured by Sumitomo Chemical Co., Ltd., manufactured by a gas phase method, and a 1-butene content of 25.0% by weight) , melt flow rate 3 〇 g / 1 〇 minutes), 4. 4% by weight of one of stearic acid monoglyceride, 0.1% by weight of erucamide. -41 - 200909211 <Working of the base layer> In the tandem extruder (1st stage 175ηΐιηφ, l/d: 17; 2nd stage 220mmcJ), L/D: 20), the following raw materials were melt-mixed to form a base layer: 97.89 by weight FS2011DG3 (a polypropylene resin manufactured by Sumitomo Chemical Co., Ltd. manufactured by a gas phase method, ethylene content 〇9 wt%, melt flow rate: 2.5 g/10 min), and 1,26 wt% of s 3i (utilization) A polypropylene resin manufactured by Sumitomo Chemical Co., Ltd., manufactured by a gas phase method, having an ethylene content of 50% by weight, a melt flow rate of 1-7 g/l 〇 minute, 0.10% by weight, a monoglyceryl stearate, and 0.60% by weight. Polyethylene oxide (2) stearylamine monostearate, 0.15% by weight of polyethylene oxide (2) stearylamine. <Formation of a film> The resin for forming a base layer and the resin for forming an adhesive layer are respectively melted in an extruder, and in this state, the discharge amount of the base layer is directly 1 980 kg/H, and the discharge amount of the adhesion layer is 126 kg. The supply amount of /H was extruded in a three-layer T die (multi-manifold type, slit width 900 mm, and slit interval of 2.4 mm) controlled at 260 ° C. At this time, a spacer having a width of 50 mm was placed in the left and right ends of the resin-forming layer in the die, and the adhesion layer was not laminated on the left and right ends of the base layer. In this manner, by using an air knife, the extruded molten resin was sprayed on a casting cylinder at 20 ° C at a wind speed of 1,050 mm Aq, and extracted at a rate of 58.8 m/min, cooled and solidified to obtain a laminated resin. Sheet. Further, the width of the laminated resin sheet-based adhesion layer obtained as shown in Fig. 2 is narrower than the width of the base layer by about 50 mm. Using a cylinder continuously heated from l〇8t to 130°C, pre-42-200909211, the obtained sheet is superheated, and then heated to a cylinder of 1 3 1 °C by The cylinder speed was adjusted to 65.44 m/min and 242.1 2 m/min, and the speed difference was given. After longitudinal stretching of 3.7 times, the cylinder was heated to 130 ° C to relax. Then, the sheet which has been longitudinally stretched is preheated at a speed of 24 1.4 m/min in an oven at 167.5 ° C, and then stretched 10.7 times at a rate of 1.39 m/sec at a deformation speed of 155 ° C. Further, by heat-fixing on one side in an environment of 165 ° C, 8% relaxation was performed in 4.5 seconds; cooling was performed in an environment of 40 ° C for 1.5 seconds, and an adhesion layer of 0.8/zm was continuously produced. Two kinds of three-layer films of all layers of 20; / m in the order of the base layer of 18.4 / / m and the adhesion layer of 0.8 / zm. Then, in such a manner, the surface of the film which was continuously produced was subjected to corona discharge treatment so that the wetting tension of the film surface became 39 mN/m, and the absolute humidity was controlled to be 8 g/kg or more of dry air. In the environment, the film after corona discharge treatment was taken up at a take-up speed of 24 1.4 m/min to obtain a film-wound cylinder having a width of 6240 mm and a flow direction of 29,000 m. Further, the film cylinder after the winding up was stored in an environment of 40 ° C for 12 hours, and after natural relaxation, it was cut into a width direction of 600 mm and a flow direction of 4000 m to obtain 70 product film cylinders. The obtained product film cylinder is not collapsed, and processing such as printing, bag making, and the like can be performed satisfactorily. Then, the above method was used to evaluate the film characteristics of the film cylinder constituting the obtained product. The evaluation 糸π fruit is not shown in Table 3. Further, a film sample having a predetermined amount (about 1.0 g) was cut from the obtained film cylinder, and the film sample was dry-decomposed and treated with an acid. After the A1 content was determined by plasma luminescence analysis, the content of A1 was -43. - 200909211 34 mg/kg [Example 2] In Example 1, when a close-knit layer was formed, a nine-piece C was used instead of nine-grain A, and a product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not broken in the same manner as in Example 1, and processing such as printing, bag making, and the like can be performed well. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained product. The evaluation results are shown in Table 3. [Example 3] In Example 1, at the time of forming the adhesion layer, nine pieces of G were used instead of nine pieces of A, and one part of nine pieces of B was replaced with nine pieces of F. In addition, the product film cylinder obtained by obtaining the product film cylinder in the same manner as in the first embodiment was the same as that in the first embodiment, and was not wrinkled. The processing such as printing, bag making, and the like can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained product. The results of the evaluation are not shown in Table 3. [Example 4] In Example 1, the two types of three layers after biaxial stretching were adjusted by separately adjusting the discharge amount of the extruder for forming the base layer and the discharge amount of the extruder for forming the adhesion layer. When the thickness of the film adhesion layer is changed to 0.6/zm, the thickness of the base layer is changed to, that is, the adhesion layer of the layer 〇.6"111, the base layer of 18.8/zm, and the adhesion layer of 0.6/zm are formed. A total of 20 #111 of 2 kinds of 3-layer film). Except for this, a product film cylinder was obtained in the same manner as in Example 1 -44-200909211. The obtained product film cylinder was not broken in the same manner as in Example 1, and processing such as printing and bag making can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained article. The evaluation results are shown in Table 3 ° [Example 5] When the heat-adhesive layer was formed, the anti-caking agent master batch was the same as that of Example 1 at 115 mm. <p extruder" melt mixing of 9 wt% of 9 a, 10.0 wt% of 9 B, 68.5 wt% of FSX66E8 as base material, 16.0 wt% of BH180EL-2, 0.4 wt% Monoglyceryl stearate, 0.1% by weight of erucylamine. Otherwise, the product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not wrinkled in the same manner as in Example 1, and the processing such as printing, bag making, and the like can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film properties of the resulting film roll of the article. The evaluation results are shown in Table 3. [Example 6] When the heat-adhesive layer was formed, the anti-caking agent masterbatch was placed in the same 115 mmp extruder as in Example 1, and melted and mixed with 1.2 wt% of nine A and 17.5% by weight of nine B. As a base material, 64.8% by weight of FSX6 6E8, 16.0% by weight of BH180EL-2, 0.4% by weight of one of monoglyceryl stearate, and 0.1% by weight of erucamide. Otherwise, the product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not wrinkled in the same manner as in Example 1, and the printing was carried out satisfactorily, and the processing of the bag was carried out in -45-200909211. Then, the same method as in Example 1 was used to evaluate the film characteristics of the resulting film roll of the article. The evaluation results are shown in Table 3. [Example 7] In Example 1, the two types of three layers after biaxial stretching were adjusted by separately adjusting the discharge amount of the extruder for forming the base layer and the discharge amount of the extruder for forming the adhesion layer. The thickness of the film adhesion layer was changed to 10 μm, and the thickness of the base layer was changed to 23.0 μm (that is, an adhesion layer of 1.0/zm in order, a base layer of 23.0//m, and a base layer of 3.0.Ο/zm). Two kinds of 3-layer films of a total of 25//m of the adhesion layer). Except for this, a product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not wrinkled in the same manner as in Example 1, and processing such as printing, bag making, and the like can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained article. The evaluation results are shown in Table 3. [Example 8] In Example 1, two kinds of three layers after biaxial stretching were respectively adjusted by separately adjusting the discharge amount of the extruder for forming the base layer and the discharge amount of the extruder for forming the adhesion layer. The thickness of the film adhesion layer was changed to 1.4/zm, and the thickness of the base layer was changed to 37.2/zm (that is, an adhesion layer of 1.4/m in order, a base layer of 37.2/im, and a base layer of 1.4/zm). Two 3-layer films of a total of 40/zm of the adhesion layer). Except for this, a product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not broken in the same manner as in Example 1, and processing such as printing and bag making can be performed satisfactorily. -46- 200909211 Then, the same method as in Example 1 was used to evaluate the film properties of the film cylinder constituting the resulting article. The evaluation results are shown in Table 3. [Example 9] In Example 1, two kinds of three layers after biaxial stretching were respectively adjusted by separately adjusting the discharge amount of the extruder for forming the base layer and the discharge amount of the extruder for forming the adhesion layer. When the thickness of the film adhesion layer was changed, the thickness of the base layer was changed to 38.0/zm (that is, an n-layer of 1.0/zm in order, a base layer of 38.0/zm, and an adhesion layer of 1.0/zm). A total of 40 #m of 2 kinds of 3-layer film). Except for this, a product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not wrinkled in the same manner as in Example 1, and processing such as printing, bag making, and the like can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained article. The evaluation results are shown in Table 3. [Example 10] In Example 1, two types of biaxial stretching were respectively adjusted by separately adjusting the discharge amount of the extruder for forming the base layer and the discharge amount of the extruder for forming the adhesion layer. The thickness of the three-layer film adhesion layer was changed to 1.4 μm, and the thickness of the base layer was changed to 47.2 #111 (that is, the adhesion layer of the layer of 1.4 " m, the base layer of 47.2/zm, 1.4/zm A total of 50"m of two 3-layer films of the adhesion layer). Except for this, a product film cylinder was obtained in the same manner as in Example 1. The obtained product film cylinder was not wrinkled in the same manner as in Example 1, and processing such as printing, bag making, and the like can be performed satisfactorily. Then, the same method as in Example 1 was used to evaluate the film characteristics of the film cylinder constituting the obtained article -47-200909211. The evaluation results are shown in Table 3. [Comparative Example 1] In the first embodiment, when the adhesion layer was formed, nine particles of B were used instead of the nine particles A, and the total amount of the nine particles B was adjusted to be 14.8% by weight. Except for this, a product film cylinder was obtained in the same manner as in Example 1. The resulting film cylinder of the product is collapsed, and the processing of printing, bag making, etc., is improper. Then, the same method as in Example 1 was used to evaluate the film characteristics constituting the obtained film roll of the product. The evaluation results are shown in Table 3. [Comparative Example 2] In the first embodiment, when the adhesion layer was formed, nine particles of A were used instead of the nine particles B, and the total amount of the nine particles A was adjusted to be 14.8% by weight. Except for this, a product film cylinder was obtained in the same manner as in Example 1. The resulting film cylinder of the product is wrinkled, and the processing of printing, bag making, etc., is improper. Then, the same method as in Example 1 was used to evaluate the film characteristics constituting the obtained film roll of the product. The evaluation results are shown in Table 3. [Comparative Example 3] In the first embodiment, in the case where the adhesion layer was formed, a film of the film was tried in the same manner as in Example 1 except that nine particles of E were used instead of the nine particles B. However, since a large amount of foreign matter due to poor dispersion of inorganic fine particles was generated, a film sample evaluated by Chad could not be obtained. [Comparative Example 4] In Example 1, when the adhesion layer was formed, except that nine particles C were used instead of nine particles A, and nine particles D were used instead of nine particles B, the same procedure was carried out as -48-200909211. The product film cylinder was wrinkled by the method of 1, and the processing of printing, bag making, etc. was carried out in the same manner as in Example 1 to evaluate the film properties of the palm tube. The evaluation results are shown in the table [Comparative Example 5] In Example 1, except that the film was changed to 171 ° C in an environment of 4.5 seconds, the same procedure as in Example 1 was carried out, and the product was obtained in the same manner as in Example 1. The method is to evaluate the constituent/film properties. The evaluation results are shown in Table 3. . The resulting product film was not properly created. Then, the obtained product film was subjected to heat setting conditions after stretching at 3 ° and 8% relaxation, and a film cylinder was carried out. Then, the obtained product film cylinder -49-200909211 [Table 3]
//H40 AR(秒） 霧度値 初期 防霧性 防霧 持續性 熔斷密合性 (不良率％) 熱密合強度 (N/15mm) 潤濕張力 (mN/m) 製品圓 筒皺摺 實施例1 0.8 3.0 2.2 6級 6級 0 3.8 39 〇 實施例2 0.75 2.8 2.1 6級 6級 0 3.5 39 〇 實施例3 0.65 7.5 3.0 6級 6級 0.05 3.4 39 〇 實施例4 0.61 8.0 2.0 6級 6級 0 3,0 39 〇 實施例5 0.70 1.9 2.8 6級 6級 0 3.2 39 〇 實施例6 0.97 3.4 2.2 6級 6級 0 3.4 39 〇 實施例7 0.61 5.0 3.0 6級 6級 0 3.5 39 〇 實施例8 0.50 3.5 3.2 6級 6級 0 4.5 39 〇 實施例9 0.42 7.0 2.8 6級 6級 0 4.2 39 〇 實施例10 0.35 3.0 3.4 6級 6級 0 4.1 39 〇 比較例1 1.40 4.5 2.0 5級 5級 20 4.0 39 X 比較例2 0.74 1.3 3.2 5級 5級 10 3.4 39 X 比較例3 無法測定 無法測定 無法測定 無法測定 無法測定 無法測定 無法測定 無法測定 無法測定 比較例4 1.0 1.5 2.7 6級 6級 6 3.6 39 Δ 比較例5 0.78 2.0 6.0 6級 6級 0.1 1 3.8 39 X -50- 200909211 〔實施例薄膜之效果〕 由表3，由於實施例之薄膜的/zHW'AR、霧度値符 合本發明之條件，得知防霧性、透過性爲良好的，在薄膜 圓筒中不發生皺摺，熔斷密合性爲良好的。相對於此，比 較例1之薄膜，其从H40爲大的，未符合本發明之條件， 皺摺將發生於薄膜圓筒中，熔斷密合性極爲不良；比較例 2、4之薄膜，其A R値爲小的，未符合本發明之條件，在 薄膜圓筒中發生皺摺，熔斷密合性不良。比較例5之薄膜， / 其透明性爲差的，霧霧度値未符合本發明之條件，包裝時 內容物未能鮮明觀察到。 [產業上利用之可能性] 因爲本發明之聚丙烯系樹脂積層薄膜具有如上所述之 優異特性’能夠適用於生鮮食品之包裝用途。 【圖式簡單說明】 第1圖係顯示測定薄膜漏氣速度之裝置剖面的說明 圖。 第2圖係顯示·未拉伸之樹脂積層薄片剖面的說明圖。 【主要元件符號說明】 1 載台 2 薄膜壓制物 2 a 溝孔 2 c 孔 2d 細孔 3 螺絲 4 薄膜 -51 - 200909211 5 薄 膜 6 真 空 泵 7 管 路 8 薄 膜 壓 制 物 X 薄 膜 重 疊 部分 -52//H40 AR (seconds) Haze, initial anti-fog, anti-fog, continuous fuse adhesion (% of defect rate), heat tightness (N/15mm), wetting tension (mN/m), product roll wrinkle Example 1 0.8 3.0 2.2 Level 6 Level 6 0 3.8 39 〇 Example 2 0.75 2.8 2.1 Level 6 Level 6 0 3.5 39 〇 Example 3 0.65 7.5 3.0 Level 6 Level 6 0.05 3.4 39 〇 Example 4 0.61 8.0 2.0 Level 6 Stage 0 3,0 39 〇Example 5 0.70 1.9 2.8 Level 6 Level 6 0 3.2 39 〇Example 6 0.97 3.4 2.2 Level 6 Level 6 0 3.4 39 〇Example 7 0.61 5.0 3.0 Level 6 Level 6 0 3.5 39 〇Implementation Example 8 0.50 3.5 3.2 6 level 6 level 0 4.5 39 〇Example 9 0.42 7.0 2.8 6 level 6 level 0 4.2 39 〇Example 10 0.35 3.0 3.4 Level 6 Level 6 0 4.1 39 〇Comparative Example 1 1.40 4.5 2.0 Level 5 Grade 20 4.0 39 X Comparative Example 2 0.74 1.3 3.2 Level 5 Level 5 10 3.4 39 X Comparative Example 3 Cannot be measured Cannot be measured Cannot be measured Cannot be measured Cannot be measured Cannot be measured Cannot be measured Cannot be measured Cannot be measured Comparative Example 4 1.0 1.5 2.7 Level 6 Level 6 6 3.6 39 Δ Comparative Example 5 0.78 2.0 6.0 Level 6 Level 6 0.1 1 3.8 39 X -50- 200909211 [Example Film Effect From Table 3, since the /zHW'AR and the haze of the film of the example are in accordance with the conditions of the present invention, it is known that the antifogging property and the permeability are good, and wrinkles are not formed in the film cylinder, and the adhesion is melted. For good. On the other hand, the film of Comparative Example 1 was large from H40 and did not satisfy the conditions of the present invention, wrinkles occurred in the film cylinder, and the fusion adhesion was extremely poor; the films of Comparative Examples 2 and 4, AR thereof The crucible is small and does not conform to the conditions of the present invention, and wrinkles occur in the film cylinder, and the melt adhesion is poor. The film of Comparative Example 5, / which had poor transparency, had a haze which did not satisfy the conditions of the present invention, and the contents were not clearly observed at the time of packaging. [The possibility of industrial use] The polypropylene-based resin laminated film of the present invention has the excellent characteristics as described above, and can be applied to packaging applications of fresh foods. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an explanatory view showing a cross section of a device for measuring a gas leakage rate of a film. Fig. 2 is an explanatory view showing a cross section of a resin laminated sheet which is not stretched. [Main component symbol description] 1 Stage 2 Film pressed 2 a Groove hole 2 c Hole 2d Hole 3 Screw 4 Film -51 - 200909211 5 Thin film 6 Vacuum pump 7 Tube 8 Thin film pressed X Thin film Overlap part -52