200528507 九、發明說明： 【發明所屬之技術領域】 本發明關於聚乙烯系薄膜及該薄膜之積層體、容器、容 器包裝用包裝體、容器包裝體以及乙烯系聚合物組成物，特 別地，本發明關於聚乙烯系薄膜，其即使實質上不含有滑劑 或防黏連劑也能具有優良的抗互黏性，於構成容器等時不會 有異物混入內容物內之虞，而且薄膜外觀亦優良 【先前技術】 聚乙烯系薄膜係適用作爲塡充有食品或藥劑等的容器 φ 或塡充有食品或藥劑等的由各種塑膠或金屬所成容器之包 裝用的包裝體等。後者之容器包裝用包裝體有各種使用目的， 例如爲了防止容器的損傷等之機械損傷、防止由於氧或紫外 線的透過而使得容器內容物變質等，保護容器或容器內容物， 或施予印刷以明示容器內容物或容器內容物或容器的使用 方法等。 容器或容器包裝用包裝體係可藉由乙烯系聚合物或其 之組成物的成形以得到聚乙烯系薄膜，該薄膜通常係可藉由 <§ 熱熔黏法完成所欲的形狀（例如袋狀等）。 以往，於容器或容器包裝用包裝體所使用的聚乙烯系薄 膜中，薄膜有彼此互黏的現象。 例如，於將捲成輥狀的薄膜保存在倉庫等的期間，薄膜 彼此發生互黏而黏連在一起。若發生黏連，則在加工成爲袋 狀等的程序中，係難以加工成爲良好的形狀，薄膜的滑動性 變差，故有生産性降低之虞。又，於加工成爲袋狀等後，於 200528507 塡充的內容物之保管中’容器或包裝體的內面彼此互黏而使 得開口性變差，內容物的充塡變得困難。 · 再者’近年基於安全衛生方面，故亦增加對由包裝體所 包裝的谷器而成的容器包裝體作高壓蒸氣滅菌，然而爲了提 高生産性’在較高的滅菌溫度以縮短滅菌時間的傾向。於高 溫中曝喔的過f壬中’虽然谷易發生互黏。特別地在醫療用途 中’爲了保持谷器內谷物的品質於更安定的品質，將包裝體 內減壓以減少醫療用容器與包裝體的空間體積，而使得包裝 體與醫療用容器的互相密接，而變成在容易發生互黏的條件 | 下進行高壓蒸氣滅菌。 特別地’就包裝體接觸面（容器的最外層）由丙烯系聚合 物所成的容器而言，爲了賦予容器柔軟性，而大多使用以乙 細或丁細-1當作共聚合成分的丙燦系共聚物或是加有苯乙 烯系彈性體、烯烴系彈性體等彈性體成分者當作丙烯系共聚 物’但是含丙烯系共聚物或彈性體成分的丙烯系聚合物與由 聚乙烯系薄膜所成的包裝體之間易發生互黏。特別地，在丙 儲系聚合物中，於由丙烯-乙烯無規共聚物所成的容器與由 馨 聚乙烯系薄膜所成的包裝體之間係極易發生互黏。 在該背景下，作爲改善聚乙亂系薄膜的抗互黏性或滑性 的手段，有提案以（a)添加矽石、滑石、球狀的交聯性聚丙烯 酸甲酯等的無機或有機系塡料所成的防黏連劑或是硬脂酸 錦等的金屬皂系滑劑、芥酸醯胺等薄膜滑劑所廣泛使用的脂 肪酸醯胺系滑劑等（發明專利文獻1等）、（]3)於薄膜面上附著 ϊ米«粉等粉體、（c)藉由壓紋加工法等以將薄膜面物理地粗 200528507 糙化而減少接觸面積等（發明專利文獻2等）。 ^ * [發明專利文獻1 ]特許第3 2 〇 7 5 〇 〇號公報 [發明專利文獻2]特開平10-95466號公報 【發明內容】 發明所欲解決的問顆 然而，上述先前技術係有以下的問題。 (a)若添加防黏連劑或滑劑等的添加劑，則於裁斷薄膜時 由斷面所落下的粉狀物會污染製品，或是有由表面所滲出的 添加劑會混入內容物中等的衛生上之問題。（b)於附著玉米 澱粉等的粉體之情況中亦同樣地，無法避免粉體混入內容物 中所產生的衛生上問題。特別地，於密合容器與包裝體而進 行高壓蒸氣滅菌等的操作時，由於容器的材質而使得包裝體 內所含有加劑透過容器壁混入內容物內，而使得內容物有變 質之虞。（c)就對薄膜面作機械粗糙的技術而言，有使薄膜外 觀變差等之問題。 本發明鑒於上述情事，而目的在於提供實現抗互黏性及 滑性優良、於構成容器等時不會有異物混入內容物內之虞而 且薄膜外觀亦優良的聚乙烯系薄膜之手段，以及使用具備該 特性的聚乙烯系薄膜的容器等之物品。 解決問顆的丰跺 本案發明人發現藉由組合特定的乙烯系聚合物，可實質 上不添加滑劑及防黏連劑等的添加劑，以顯著地提高抗互黏 性、滑性，而完成本發明。再者，雖然未必明瞭本發明之提 高抗互黏性的理由，但推測係由於使用含有特定乙烯系聚合 200528507 物的樹脂組成物，而得到至少一面爲均勻的粗面化之薄膜， 由於減少薄Μ的接觸面積，故降低互黏性。 即，本發明係： (1) 一種聚乙烯系薄膜，包含組成、密度、熔融流動指 數中至少一者爲不同的數種乙烯系聚合物，其特徵在於上述 數種乙烯系聚合物中至少一者係高密度聚乙烯，至少一面彼 此之動摩擦係數爲0.40以下，而且動摩擦係數爲〇·4()以下 的面係一面外部霧度値爲5 %以上的粗面， (2) 如（1)中記載之聚乙烯系薄膜，其特徵爲實質上不含 | 有滑劑及防黏連劑， (3) 如（1)或（2)中記載之聚乙烯系薄膜，其特徵爲全部乙 烯系聚合物的熔融流動指數之最大値MFRmax相對於最小値 MFRmin 的比 MFRmax/MFRmin 係 5〜200， (4) 如（1)〜（3)中任一項記載之聚乙烯系薄膜，其特徵爲 1〇〇質量份的乙烯系聚合物之總量中含有總量爲20〜1〇〇質 量份的高密度聚乙烯。 於本說明書中，「熔融流動指數」、「動摩擦係數」及 參 「一面外部霧度値」的定義及其測定方法係如後述。 又，於本發係： (5) —種積層體，其特徵爲具備如（1)〜（4)中任一項記載 之聚乙烯系薄膜，而且以上述粗面當作最外面， (6) 如（5)中記載之積層體，其特徵爲由上述聚乙烯系薄 膜所構成，具有以上述粗面當作密封面的密封層，而且具備 支持它的至少一層支持層， 200528507 (7) 如（5)或（6)中記載之積層體，其特徵爲在上述聚乙烯 系薄te的內側具備由遮光層、阻氣層、印刷層及保護層所選 出的至少一種層。 又，本發明係： (8) —種容器，其特徵爲係由如（1)〜（4)中任一項記載之 聚乙烯系薄膜或如（5)〜（7)中任一項記載之積層體所構成， (9) 一種容器包裝用包裝體，其特徵爲係由如（1)〜（4)中 任一項記載之聚乙烯系薄膜或由如（5)〜（7)中任一項記載之 積層體所構成，而且最內面係爲上述聚乙烯薄膜， 鲁 (10) —種容器包裝體，其特徵爲該容器係爲密接及被收 容在如（9)記載的容器包裝用包裝體內，再經高壓蒸氣滅菌 而成， (11) 如（10)中記載之容器包裝體，其特徵高壓蒸氣滅菌 的溫度係1 2 1 °c以上， (12) 如（10)或（η)中記載之容器包裝體，其特徵爲上述 容器係醫療用容器， (13) 如（10)〜（12)中任一項記載之容器包裝體，其特徵 鲁 爲上述谷器至少最外層係由丙燦系聚合物所構成。 又，本發明係： (14) 種乙#系聚合物組成物，其包含組成、密度、溶 融流動指數中至少一者爲不同的數種乙嫌系聚合物，其特徵 在於上述數種乙烯系聚合物中至少一者係高密度聚乙烯，由 在樹fl曰溫度爲1 8 0〜2 6 0 °C所成形得到的薄膜係至少一面彼 此的動摩擦係數爲0.40以下，而且動摩擦係數爲〇4〇以下 -9- 200528507 的面係由一面外部霧度値爲5 %以上的粗面所構成， (15) 如（1)中記載之乙烯系聚合物組成物，其特徵爲實質 上不含有滑劑及防黏連劑， (16) 如（I4)或（15)中記載之乙烯系聚合物組成物，其特 徵爲全部乙烯系聚合物的熔融流動指數之最大値MFRmax相 對於最小値MFRMiN的比MFRMAx /MFRmin係5〜200， (17) 如（14)〜（16)中任一項記載之乙烯系聚合物組成 物，其特徵爲1 00質量份的乙烯系聚合物之總量中含有總量 爲20〜100質量份的高密度聚乙烯。 φ 發明的效果 本發明藉由組合特定的乙烯系聚合物，可實質上不添加 滑劑及防黏連劑等的添加劑，而且即使不對薄膜面施予機械 粗糙等的物理處理，也能顯著地提高抗互黏性、·滑性。 因此，本發明提供乙烯系聚合物組成物、聚乙烯系薄膜 及積層體，其之抗互黏性及滑性優良，而且於構成容器等時 不會有異物混入內容物內之虞，故安全衛生性優良，而且薄 膜外觀亦優良。又，藉由使用本發明的聚乙烯系薄膜或積層 · 體，可提供容器或容器包裝用包裝體、容器包裝體，其之抗 互黏性及滑性優良，而且沒有異物混入內容物之虞而安全衛 生性優良，外觀亦優良。 本發明的聚乙烯系薄膜係由廉價的聚烯烴所構成而成 本亦低，其之工業價値極高。 【實施方式】 實施發明的最佳形態 -10- 200528507 以下詳細說明本發明。 「乙烯系聚合物組成物」 ^ 本發明的乙烯系聚合物組成物組成、密度、熔融流動指 數中至少一者爲不同的數種乙烯系聚合物，而且乙烯系聚合 物係使用至少含高密度聚乙烯的組成物。 乙烯系聚合物係主成分由乙烯所構成的聚合物即可，而 沒有特別的，例如可爲乙烯的均聚物及乙烯和碳數3〜2〇個 的α-烯烴共聚物等的乙烯系聚烯烴，或是乙烯及與含有與其 可共聚合的極性基之化合物所成的含極性基之乙烯系共聚 · 物等。 乙烯系聚烯烴的具體例子可爲高密度聚乙烯、直鏈狀低 密度聚乙烯、高壓法低密度聚乙烯等。乙烯系聚烯烴中所用 的α-烯烴例如可爲丙烯、^丁烯、丨·戊烯、丨_己烯、4_甲基 -1-戊烯、1-辛烯、1-癸烯、i—十二烯等，它們可以單獨1種 或以2種以上的組合來使用。在這些α_烯烴中，從耐熱性優 良的觀點看，特佳爲1-丁烯、1-戊烯、1-己烯、4-甲基-1-戊烯、1-辛烯等。 籲 作爲含極性基的乙烯系共聚物之具體例子，例如可爲乙 稀與醋酸乙烯酯的共聚物、乙烯對（甲基）丙烯酸的共聚物及 其之金屬鹽、乙烯與（甲基）丙烯酸的烷酯之共聚物、及乙烯 與（甲基）丙烯酸的烷酯和馬來酐酸等的不飽和二羧酸之共 聚物等。 於乙烯系聚合物中，在加工成容器等時，從味道或臭味 移行到食品或藥劑等的內容物之情況少的觀點看，較佳爲乙 -11- 200528507 儲系聚燃烴。於本發明中，雖然已陳述至少使用高密度聚乙 當作乙烯系聚合物，但高密度聚乙烯除了具有乙烯系聚烯 煙全部特性，耐熱性亦優良。又，於乙烯系聚烯烴中，由直 鏈狀低密度聚乙烯亦耐熱性優良，故較宜倂用它。 乙烯系聚合物係可藉由整體法、溶液法、淤漿法、氣相 法等公知的製造法來製造。於聚合時，亦可使用齊格勒-納 丈合觸媒或金屬戊系觸媒等觸媒。又，於藉由高壓法來製造低 密度聚乙烯等時，可使用自由基引發劑。. 所使用的乙烯系聚合物依照j〗S κ 7 2 1 0在溫度1 9 0 °c、 荷重2 1 · 1 8N的條件下所測得的熔融流動指數（以下稱爲 MFR」）較佳係白爲1〜5〇克/1〇分鐘。MFR若低於該範圍， 則有成形性附低的傾向，若超過該範圍而有強度及熱熔黏性 降低的傾向。 本發明的組成物含有高密度聚乙烯當作第1乙烯系聚合 物。此處，「高密度聚乙烯」係指依照JIS K6922-2所測定 的密度爲94〇kg/cm3以上的聚乙烯。密度愈高，則耐熱性與 抗互黏性愈優良。特別地，從在1 2 rc以上的溫度滅菌處理 時抗互黏性優良看，所用的高密度聚乙烯之密度較佳爲 945kg/m3以上，特佳950kg/m3以上。高密度聚乙烯的密度 上限並沒有特別的限定，但市售的高密度聚乙烯之密度上限 爲96 6kg/m3左右，其以下者係可容易取得的。又，從成形 性、耐熱性及熱熔黏性優良看，所用的高密度聚乙烯之mfr 較佳爲〇·1〜40克/10分鐘，更佳爲〇2〜2〇克/1〇分鐘。 本發明的組成物更含有一種與上述第i乙烯系聚合物之 200528507 組成、密度、MFR中至少一個不相同的第2乙烯系聚合物。 第2乙烯系聚合物並沒有特別的限定，從作爲容器等時 味道或臭味移行到食品或藥劑等的內容物之情況少的觀點 看，較佳爲乙烯系聚烯烴，特別是從耐熱性優良方面看，較 佳爲高密度聚乙烯或直鏈狀低密度聚乙烯。尤其從耐熱性優 良方面看’最好亦使用第2乙烯系聚合物當作高密度聚乙 烯。於亦含有高密度聚乙烯當作第2乙烯系聚合物時，密度 及/或MFR係由與第1乙烯系聚合物不同者所構成。 第2乙烯系聚合物的MFR係沒有特別的限定，但從成 φ 形性、耐熱性、及熱熔黏性優良方面看，較佳爲〇· i〜4〇克 /10分鐘，更佳爲0.2〜20克/10分鐘。 於本發明的乙烯系聚合物組成物中。乙烯系聚合物的總 量1〇〇質量份中所含有的高密度聚乙烯之總量較佳係20〜 1 00質量份，特佳係40〜1 00質量份。高密度聚乙烯的總量 若在該範圍外，則恐有由成形條件等而發生魚眼等，導致薄 膜外觀惡化。再者，於含有高壓法低密度聚乙烯、直鏈狀低 密度聚乙烯、乙烯系共聚物的情況中，若它們的總量超過80 φ 質量份時，則有不能明顯展現耐熱性或抗互黏性的提高效果 之虞。 構成本發明的組成物之全部乙烯系聚合物的MFR之最 大値MFRmax相對於最小値MFRmin的比MFRmax/MFRmin 較佳係5〜200，更佳係10〜150，特佳係10〜1〇〇。本案發 明人發現當使MFRmax/MFRmin在該範圍內時，則能將薄膜 面安定地粗面化，得到良好的抗互黏性。再者，雖然尙未確 -13- 200528507 定當MFR比在該特定範圍內時會表現良好的抗互黏性之理 由，但推測當MFR比在上述範圍內時，於薄膜成形可能的 範圍內，乙烯系聚合物彼此係成爲不均勻混合狀態，而使得 薄膜面能容易粗面化。 再者，若MFRmax/MFRmin低於5時，則薄膜面難以成 爲粗面，動摩擦係數有變高的傾向。另一方面，若 MFRmax/MFRmin超過200時，成形性會變差，發生膠化或 魚眼等，使薄膜外觀有惡化的傾向，而且難以形成良好的粗 面，故係不宜的。 φ 再者，從容易形成良好的粗面看，乙烯系聚合物的總量 100質量份中所含有具最大MFR(MFRmax)的乙烯系聚合物 之量較佳爲20〜80質量份，更佳爲30〜70質量份，特佳爲 4 0〜6 0質^量份。 又’從展現更優良的抗互黏性看，較佳爲以高密度聚乙 烯當作具最大MFR(MFRmax)的乙烯系聚合物。特別地，具 最大MFR(MFRmax)及最小MFR(MFRMIN)的乙烯系聚合物係 皆由高密度聚乙烯所構成，由於由大體上不含有該2種高密 鲁 度聚乙燃以外的樹脂成分來成構係展現更優良的抗互黏性 及耐熱性，故係較宜的。 本發明的組成物中實質上不含有滑劑及防黏連劑，在樹 月曰溫度1 8 0〜2 6 0 C所成形得到的薄膜之至少一面彼此的動 摩擦係數爲〇·40以下，較佳〇·35以下，特佳〇·3以下係爲 充足者。特別地，成形時與第i輥不接觸的面彼此之動摩擦 係數較佳爲0.40以下。此處，「第丨輥」係意指例如在τ -14- 200528507 模薄膜成形機等的平膜成形機中，用於將由模頭所壓出的熔 融樹脂冷却之第1輥（冷卻輥）。又，在吹塑薄膜成形機等的 筒狀薄膜成形機中，係意味由模頭壓出筒狀薄膜時所使用的 第1輥。即，在藉由吹塑薄膜成形等而得到的筒狀薄膜中， 與「與第1輥不接觸的面」係相當於筒狀薄膜的內面。 任一面之動摩擦係數皆超過0 · 4 0時，則滑性變差，於 薄膜被加工成袋狀等時，生産性降低，故係不宜的。 動摩擦係數的下限並沒有特別限定，較佳爲〇. i左右。 動摩擦係數過低時，於將薄膜捲成筒狀際薄膜會過滑，而使 得筒的邊緣面成爲不平滑，在積層成形或袋等的加工時，薄 膜滑出筒而有發生在筒上滑動蛇行等弊病之虞。 特別地，所使用的高密度聚乙烯之密度愈高，或佔組成 物總量的高密度聚乙烯量愈多，則動摩擦係數有降低的傾 向，而係較宜的。再者，於本說明書中，「動摩擦係數」係 使用2片聚乙烯系薄膜2枚，使同樣的面疊合，依照JIS K7 125，以100mm/分鐘的滑動速度、200克的荷重、接觸區 域爲面積4000mm2的正方形狀，以滑動方向當作薄膜成形時 的Μ方向作測定者。 本發明的組成物爲實質上不含有滑劑及防黏連劑，在樹 脂溫度 180〜260°C所成形得到的薄膜之動摩擦係數爲0.40 以下的面之一面外部霧度値係5%以上，較佳8%以上的粗面 者。「一面外部霧度値」係指由在薄膜兩面上均勻塗佈流動 石蠟而測定的霧度値Hi(內部霧度値），及由僅在一面上塗佈 流動石蠟而測定的霧度値Hs(—面霧度値），根據下述式（1) 200528507 所算出的値’係爲與粗面化程度有關的霧度之指標的數値。 於本說明書中’該些內部霧度値及一面霧度値係根據JIS K7 105所測定者。 一面外部霧度値=Hs - Hi ---(1) 於使用由本發明之組成物所得到的聚乙烯系薄膜或具 備它的積層體來構成容器或容器包裝用包裝體的情況中，較 佳爲以具有5%以上的一面外部霧度値之面當作密封面（即 內面）。藉此展現良好的抗互黏性及開口性。當薄膜任一面 的一面外部霧度値皆爲低於5 %時，則不能充分展現抗互黏 φ 性及開口性，故係不宜的。 特別成，所用的高密度聚乙烯之密度愈高，或佔組成物 總量的高密度聚乙烯量愈多，則一面外部霧度値有變高的傾 向，故係較宜的。 再者，一面外部霧度値亦可與積層體中同樣地測定，但 於具有鋁箔等的不透明層之情況中，係將該層去除然後進行 測定。 本發明的組成物含有上述第1、第2乙烯系聚合物當作 鲁 必要成分，但是亦可配合與第1、第2乙烯系聚合物在組成、 密度、MFR中至少一個爲不同的其它1種或數種之乙烯系聚 合物。 再者，在不脫離本發明目的的範圍內’亦可適當地配合 其它聚合物。作爲其它聚合物，例如可爲丙烯系聚合物、乙 烯· α-烯烴彈性體、苯乙烯·丁二烯彈性體等的各種苯乙烯 系彈性體等，但不限定於此。但是，從能容易維持一種表現 -16- 200528507 良好粗面的充分不均勻混合狀態看，較佳爲使全部聚合物中 具有最大MFR、最小MFR的聚合物皆爲乙烯系聚合物地， 而選擇其它聚合物。 又，在不明顯損害本發明的效果之範圍內，爲了改善改 善、減容化、燃燒廢棄時的低熱量化等，按照需要可配合有 機或無機塡料，或其它通常使用的公知添加劑，例如抗靜電 劑、抗氧化劑、防霧劑、有機或無機系顔料、紫外線吸收劑、 分散劑等。但是必須實質上不含有滑劑及防黏連劑。 滑劑的具體例子爲硬脂酸鈣、硬脂酸鎂等的金屬皂系滑 劑、碳數4〜22個的高級脂肪酸與碳數2、4、5個的直鏈脂 肪族一元醇之酯、乙醯基檸檬酸三丁酯、己二酸-二-2-乙基 己酯、乙二醇褐煤酸酯、聚（1，3-丁二醇己二酸）酯、乙醯基 蓖麻酸甲酯、聚（丙二醇-己二酸-月桂酸）酯、聚（1，3-丁二醇、 1，4-丁二醇、己二酸辛醇）酯、米糠蠟酯及己二酸二癸酯等的 一元、多元醇的脂肪酸酯系滑劑、油醯胺、芥醯胺、山蓊醯 胺、乙烯雙油醯胺、六亞甲基雙油醯胺及乙烯雙山窬醯胺等 的醯胺系滑劑等。 作爲防黏連劑的具體例子，例如是聚甲基丙烯酸甲酯、 聚苯乙烯及聚醯胺等的交聯物所成構的有機微粒子、矽石、 沸石、矽藻土、滑石、高嶺土及非晶性鋁矽酸鹽等的無機微 粒子。 「實質上不含滑劑及防黏連劑」係意味含有不會滲出聚 乙烯系薄膜面的量也可以。具體地，滑劑的容許含量在組成 物中較佳係低於〇·3質量％，更佳低於〇.2質量％，尤更佳低 -17- 200528507 於〇. 1質量％。又，防黏連劑的容許含量在組成竹較佳爲0.05 質量％，更佳低於0 · 0 3質量％，尤更佳低於〇 . 〇 1質量％。 滑劑內的金屬皂系滑劑，由於能良好地將原料樹脂糊 化’或是在聚合物製造時能中和及補捉當作觸媒用的氯化合 物等酸性化合物等，故在樹脂原料中早已經含有的情況下， 有不得不含有的情況。因此，較佳爲至少不含有廣用當作薄 膜用滑劑的醯胺系滑劑及脂肪酸酯系滑劑。再者，當完全不 含滑劑及防黏連劑時，則完全沒有滲出之虞，故當然係最佳 的。 · 本發明的組成物之調製方法並沒有特別的限定，但例如 可爲在混合輥、密閉式混合機、漢歇爾混合機、滾筒、螺帶 型摻合機等的混合機中混合各構成成分之方法，在至少一個 反應器內連續聚合不同的乙烯系聚合物而九粒化之方法 等。其中從經濟的觀點看較佳爲以連續聚合以得到組成物的 方法。 本發明的組成物由於係如上構成，本發明藉由組合特定 的乙烯系聚合物，故即使實質上不添加滑劑及防黏連劑，也 鲁 能顯著提高抗互黏性或滑性。 本發明的組成物由於具有該些特性，故亦在薄膜以外， 亦適合作爲中空成形、射出成形、壓縮成形、真空成形等的 成形品之材料。使用本發明的組成物所得到的成形品，在成 形時的脫模性變優良。又，由中空成形等所得到的瓶子，或 是由壓縮成形、真空成形等所得到的盤子等之容器，當被包 裝於各種包裝體時，取出性變良好。 -18- 200528507 「聚乙烯系薄膜」 本發明的聚乙嫌系薄膜之特徵係以由上述本發明的乙 烯系聚合物組成物經成形爲薄膜狀。 即’於Q有組成、松、度、熔融流動指數中至少一者爲不 同的數種乙烯系聚合物的聚乙烯系薄膜中，上述數種乙烯系 聚合物中至少一者係爲高密度聚乙烯，至少一面彼此之動摩 擦係數爲0.40以下，而且動摩擦係數爲〇·4〇以下的面係一 面外部霧度値爲5 %以上的粗面。再者，較佳爲實質上不含 有滑劑及防黏連劑。 φ 再者，如上述地，使用本發明的聚乙烯系薄膜於構成容 益或谷益包裝用包袋體的情況中，聚乙儲系薄膜的粗面（具 有5以上之一面外部霧度値的面）較佳爲當作密封面（即內 面）。 可將本發明的組成物或使用壓出機等將其九粒化者，藉 由各種薄膜成形法來成形，以得到本發明的聚乙烯系薄膜。 作爲薄膜成形法，例如可爲水冷式或空氣冷卻式壓出吹塑 法、T模法等。於本發明中，可使用τ模成形機或吹塑成形 鲁 機等的薄0吴成形機所成形的無拉伸薄膜當作本發明的聚乙 烯系薄膜。再者，視需要亦可施予拉伸處理，但於使用作爲. 密封薄膜的情況中，較佳將使用薄膜成形機所成形的無拉伸 薄膜，即未施予積極拉伸處理的無拉伸薄膜之狀態。 於製造本發明的聚乙烯系薄膜時，樹脂溫度並沒有特別 的限定，但在薄膜成形時的模頭出口所吐出後的緊鄰位置測 定時較佳係 180〜260 °C，更佳 190〜250 °C，特佳 200〜 -19- 200528507 250°C。樹脂溫度若超過260t：時，雖然乙烯系聚合物彼此的 混合會均勻化，但薄膜面上有難以形成粗面之虞。又，若低 於1 8 0 °C ’則乙烯系聚合物彼此的混合係不充分，有發生外 觀不良之虞。 本發明的薄膜之厚度並沒有特別的限定，但、經濟的觀 點及對容器等的加工性之觀點看，較佳爲5〜1000μιη，更佳 爲10〜400μιη，特佳爲30〜200μπι。 本發明的聚乙烯系薄膜由於係使用上述本發明的組成 物而得’故實質上不含有滑劑及防黏連劑，而且在薄膜面即 φ 使不施予機械地粗糙化，不施予半氈輥、氈輥、雙氈輥、壓 花輥輥、其它特殊加工輥等來賦予薄膜面凹凸等的物理處 理’也能呈現優良的抗互黏性或滑性。但是，對於本發明的 聚乙稀系薄膜，當然亦可施予該些物理處理。 本發明的聚乙烯系薄膜由於呈現優良的抗互黏性或滑 性，故在將其捲成輥狀作保管的期間，薄膜彼此不會互黏。 再者，於加工成容器或容器包裝用包裝體等時，由於薄膜不 會黏連而有良好的滑性，故可提高容器等的生産性。又，由 · 於薄膜不易帶電，故不捲入灰塵或異物，而可穩定地生產高 品質的容器等。藉由使用本發明的聚乙烯系薄膜，可以提供 抗互黏性優良、良好的內容物塡充或是由包裝體取出容器之 容器或容器包裝用包裝體等。 此外，本發明的聚乙烯系薄膜由於不含有防黏連劑或滑 劑等的添加劑，故在構成容器等時，不會發生由於添加劑而 在內容物內混入異物之虞。而且，由於對於薄膜面不需要施 -20- 200528507 予機械粗糙等的物理處理，故薄膜外觀亦優良。又，本發明 的聚乙烯系薄膜由於在薄膜面具有微細凹凸形狀，故可藉由 ‘ 錨固效果而使印刷油墨或黏著劑等容易且良好地附著，印刷 特性等亦優良。 「積層體」 上述本發明的聚乙烯系薄膜可以本紙或以單層之密封 薄膜等形式被利用，但亦可利用含有彼和其它層的積層體之 形式。本發明的積層體之特徵爲具有上述本發明的聚乙烯系 薄膜之粗面（具5 %以上的一面外部霧度値之面）當作最外 · 面。又，如上述，於使用本發明的積層體構成容器或容器包 裝用包裝體的情況中，較佳爲以本發明的聚乙烯系薄膜之粗 面當作密封面（即內面）。 作爲適用爲密封薄膜的本發明之積層體的態樣，例如可 爲將以本發明的聚乙烯系薄膜之粗面當作密封面的密封 層’與支持它的至少一層支持層藉由共押出法等而積層的構 造者。支持層並沒有特別的限定，但較佳爲使用乙烯系聚合 物、丙烯系聚合物等的一般聚烯烴。從密封層與支持層的界 書 面黏著強度優良看，特佳爲使用乙烯系聚合物。作爲所用的 丙烯系聚合物，例如可爲均聚丙烯、丙烯-乙烯無規共聚物、 两烯-乙烯嵌段共聚物等，其中較佳爲丙烯-乙烯嵌段共聚 物。 藉由使用所例示的支持層，可以得到比單層構造的密封 薄膜更良好的透明性。 積層體全體厚度並沒有特別的限定，但在利用爲密封薄 -2 1 - 200528507 膜時，若考慮密封性，則較佳爲20〜25 Ομπι，特佳爲30〜 15〇μιη。又，支持層與密封層的聚乙烯系薄膜之厚度比（支持 層/密封層）並沒有特別的限定，但若考慮密封性時，則較佳 爲50〜95/50〜5。 作爲本發明的積層體之其它態樣，例如可在本發明的聚 乙烯系薄膜之內側具有選自於遮光層、阻氣層、印刷層及保 護層的至少一種層。 作爲遮光層、阻氣層、印刷層及保護層的構成成分，並 沒有特別的限定，但例如可爲聚乙烯、聚丙烯、乙烯-醋酸 乙烯酯共聚物皂化物、鋁箔、2軸拉伸或無拉伸的聚醯胺、2 軸拉伸或無拉伸的聚對酞酸乙二酯（PET)或聚萘二甲酸乙二 酯（PEN)、氧化鋁蒸鍍PET-矽石蒸鍍PET等。 作爲本發明的積層體之其它態樣，例如可爲將本發明的 聚乙烯系薄膜當作密封層，對於積層有至少一層用於支持它 的支持層之前述積層體，再積層至少一層選自於遮光層、阻 氣層、印刷層及保護層者。 本發明的積層體之調製方法並沒有特別的限定，例如可 爲以水冷式或空氣冷卻式（共）壓出（多層）吹塑法、（共）壓出 (多層）T模法等的熔融成形來同時積層數層之成形方法，以 乾積層法來形成各層薄膜或片及需要可使用黏著劑等的積 層方法，以擠壓積層法一方面將薄膜或片預先成形且一方面 在其上熔融積層其它層之方法等。此等之中，從能容易積層 多種多樣層方面看，特佳爲乾積層或擠壓積層法。 本發明的積層體由於具備具微細凹凸形狀的本發明聚 -22- 200528507 乙烯系薄膜的粗面當作最外面，故可與本發明聚乙烯系薄膜 同樣地呈現抗互黏性。 再者，於將本發明聚乙烯系薄膜積層在支持層的一面上 的情況中，係呈現抗互黏性，而且得到支持層側之表面平滑 性高的積層體。 另一方面’於使用本發明的聚乙烯系薄膜於兩外層且各 最外面皆爲粗面的情況，在將本發明的積層體加工成袋狀等 的縱切程序等中，由輥送出本發的積層體時，接觸狀態下的 薄膜面彼此係互滑的，而展現顯著的互黏防止效果。再者， 所構成的積層體由於不易帶電，故難以捲入灰塵和異物，加 上優良抗互黏性，而可以被積層器或縱切輥平順地搬運。 本發明的積層體由於以具有微細凹凸形狀的本發明聚 乙嫌系薄膜之粗面當作最外面，故可藉由錯固效果而使印刷 油墨或黏著劑等容易且良好地附著，印刷特性等亦優良。 「容器」 本發明的容器之特徵爲由上述本發明的聚乙烯系薄膜 或本發明的積層體所構成。 作爲本發明的容器之態樣，例如可爲以本發明的聚乙燒 系薄膜當作最內層的柔軟袋等容器。於該態樣中，本發明聚 乙烯系薄膜的粗面較佳爲當作最內面。由於容器之容器內面 彼此的抗互黏性優良、容易打開口，故在塡充內容物時不會 有發生不好打開之虞。 作本發明的容器之其它態樣，例如爲將本發明聚乙嫌系 薄膜當作最外層的袋、盤等容器。於該態樣中，較佳爲以本 -23- 200528507 發明的聚乙烯系薄膜之粗面當作最外面。藉由熱、高周波、 超音波等來熔黏本發明的聚乙烯系薄膜或積層體，加工成袋 狀等，可得到袋狀容器。於以本發明的聚乙烯系薄膜當作最 外層的容器，堆積包裝或堆疊保管時可抑制容器間的互黏。 又，於容器更經真空密着包裝等作外包裝時，取出性亦極優 良。 特別地，在由本發明的聚乙烯系薄膜單獨所構成的容器 或在由本發明的積層體所構成且最內層與最外層雙方係由 本發明的聚乙烯系薄膜所構成的容器中，由於兼具此等雙方 之效果，故較宜的。再者，在最內層與最外層雙方係由本發 明的聚乙烯系薄膜所構成的容器中，較佳爲以本發明的聚乙 烯系薄膜之粗面當作最內面及最外面。 此外，本發明的容器由於具備本發明的聚乙烯系薄膜或 本發明的積層體，故無異物混入內容物之虞，而且薄膜外觀 亦優良、印刷特性也優良。 「容器包裝用包裝體」 本發明的容器包裝用包裝體之特徵爲係由上述本發明 的聚乙烯系薄膜或本發明的積層體所構成，而且最內面係爲 聚乙烯系薄膜的粗面。 本發明的容器包裝用包裝體係在內部收納有由合成樹 脂等所構成的容器，尤其收納薄膜等柔軟可燒性素材所構成 的容器，藉由將本發明的聚乙烯系薄膜或積層體施予熱、高 周波、超音波等使熔黏，而加工成袋狀等。 依本發明，可以得到一種容器包裝用包裝體，其中包裝 -24- 200528507 體的內面沒有彼此互黏或是所收納的容器之外面與包裝體 之內面沒有發生互黏之虞。此外，本發明的容器包裝用包裝 體由於具備本發明的聚乙烯系薄膜或本發明的積層體，故無 異物混入內容物之虞，而且薄膜外觀亦優良、印刷特性也優 良。。 「容器包裝體」 本發明的容器包裝體之特徵爲容器係被上述本發明的 容器包裝用包裝體內所密合而收納，再者施予高壓蒸氣滅 菌。 · 作爲本發明的容器包裝體中所用的容器，並沒有特別的 限制’但從成形性和經濟性之觀點看，例如可爲由合成樹脂 所構成的單層或多層構造之片或薄膜所構成的袋狀容器 等。作爲容器材料，可以使用習用的聚.乙烯、氯乙烯等·以及 耐熱性局的丙嫌系聚合物等來形成。 高壓蒸氣滅菌通常使用於蒸餾器領域、醫療領域等，可 藉由水淹式、噴霧式等方法來實施。 高壓蒸氣滅菌溫度並沒有特別的限定，但從近年來生産 · 性的提高'食品等的風味保持、滅菌性的提高等觀點看，以 往之100〜1 18°c左右有徐徐增高的傾向，最近可實施i2rc 以上的高溫。再者，大多於包裝體內減壓以使容器和包裝體 密合’而實施高壓蒸氣滅菌。又，於容器使用時一倂收納所 用的管子' 接頭等，在包裝體內減壓以使容器和包裝體與其 匕收納物松合’而實施高壓蒸氣滅菌者亦增加中。 本發明的容器包裝體係耐熱性優良，在l21t以上的高 -25- 200528507 壓蒸氣滅菌後抗互黏性也極優良。通常，在容器係由柔軟的 聚烯烴系樹脂所製的片或薄膜構成的情況下，雖然與包裝體 -容易發生密合及互黏，但是本發明的容器包裝體在該情況下 也不會發生互黏。特別地，如「背景技術」中所説明的，在 包裝體接觸面（容器的最外層）爲由丙烯系聚合物所構成的 容器’特別地爲由含丙烯系共聚物或彈性體成分的丙烯系聚 合物所構成的容器，容器與包裝體間易發生互黏、容器包裝 體開口後取出容器會有障礙，但是若爲本發明的容器包裝 體’則由於抗互黏性優良，故容器的取出係極容易的。如此，| 特別是在收納一種容器的最外層爲由丙烯系聚合物所構成 的容器之容器包裝體中，本發明的抗互黏性效果能更明確地 發揮。 就本發明的容器包裝體而言，包裝體內可被減壓，以使 容器與包裝體在強力密合狀態下被高壓蒸氣滅菌處理，而即 使在嚴苛的條件下也不會發生互黏。 本發明較適用於收納醫療用容器或食品容器用的容器 包裝體等。特別地，較適用於充塡高卡路里輸液、腹膜透析 φ 用輸液（CAPD)等內容物用的薄膜袋、吹塑袋、吹塑瓶等的醫 療容器之包裝用的容器包裝體等。於本發明中，由於實質上 不使用滑劑及防黏連劑等的添加劑，故不會有它們的滲出等 而污染容器內容物之虞，而爲極衛生的。 [實施例] 以下舉出實施例及比較例以更具體說明本發明，惟本發 明不受以下的例子所限定。 -26- 200528507 ψ (實施例1〜7、比較例1〜8 ) <組成物> 以表1、表2所示之之組成來調配乙烯系聚合物及添加 劑，在漢歇爾混合機內混合它們，以得到乙烯系聚合物組成 物。其次，於具備鏡面輥當作冷卻用第1輥的T模成形機中， 在樹脂溫度23 0C使成形，以得到厚度70μιη的聚乙烯系薄 膜。又，表中所顯示的配合量之單位爲質量份。 <包裝體> 準備兩片由所得到薄膜被裁切成35cmx3 5cm，重疊不與 冷却用第1輥接觸的面，在三邊緣間作熱熔黏，以得到袋狀 φ 的容器包裝用包裝體。熱熔黏的條件：密封寬度1 c m，熱封 桿之上部溫度180°C，下部溫度60°C，壓力0.2MPa，處理 時間1秒鐘。 〈容器〉 另外，在T模成形機中，於溫度230°C使根據JIS K7210 在230°C、21.18N荷重下之MFR爲2克/10分鐘的丙烯-乙 烯無規共聚物被成形，而得到厚度200μπι的薄膜。所得到 薄膜被裁切成20cmx20cm的四方形，將2片合在一起，於 鲁 三邊緣間作熱熔黏，收納於前述包裝體內，以製備袋狀的容 器。熱熔黏的條件：密封寬度lcm，.熱封桿之上部溫度 2 10°C，下部溫度60t，壓力0.2MPa，處理時間1秒鐘。 於該容器內充塡1升的蒸餾水，在未熔黏的邊緣端部間 作熱熔黏，以封閉它。 <容器包裝體> 將上述所得到的裝有蒸餾水的容器收納在前述包裝體 -27- 200528507 內’邊用真空泵將包裝體內減壓，邊對包裝體的開口部作熱 熔黏’以得到容器包裝體。再者，在噴霧式高壓蒸氣滅菌機 中’於124。(：對該容器包裝體施予滅菌處理30分鐘。 以下顯示所用的乙烯系聚合物、防黏連劑及滑劑。MFR 係依照JIS K 7210，在溫度190T：、荷重21.18N下測定，密 度係依照Π S K 6 9 2 2 - 2，以密度梯度管來測定。表中亦合倂 記載 MFRmax/mFRmin。 (乙烯系聚合物）HD1:MFR 15克/10分鐘，密度965kg/m3 的高密度聚乙烯HD2 : MFR 8克/10分鐘，密度955kg/m3的 高密度聚乙烯HD3: MFR0.2克/10分鐘，密度960kg/m3的 高密度聚乙烯HD4: MFR0.6克/10分鐘，密度955kg/m3的 高密度聚乙烯HD5: MFR 5g/10分鐘，密度955kg/m3的高 密度聚乙烯HD6 : MFR 12克/10分鐘，密度955kg/m3的高 密度聚乙烯HD7: MFR 0.08克/10分鐘，密度950kg/m3的 高密度聚乙烯LL1: MFR 0.5克/10分鐘，密度922kg/m3的 直鏈狀低密度聚乙烯之乙烯· 1-己烯共聚物LL2 : MFR 15 克/10分鐘，密度93 5 kg/m3的直鏈狀低密度聚乙烯之乙烯· 1-己烯共聚物LL3: MFR 0.2克/10分鐘，密度93 5kg/m3的 直鏈狀低密度聚乙烯之乙烯· 1-丁烯共聚物LD1: MFR 50 克/10分，密度 917kg/m3的高壓法低密度聚乙烯（添加 劑）C1 :矽石系防黏連劑C2 :聚丙烯酸甲酯（PMMA)系防黏 連劑C3 :芥醯胺。 (評估項目及評估方法）<動摩擦係數> 聚乙烯系薄膜的動摩擦係數係依照；TIS K 7125，疊合不 -28- 200528507 與第1輥接觸的面，在滑動速度爲100mm/分鐘、荷重爲200 克、接觸領域爲面積4000mm2的正方形狀、滑動方向爲薄 膜成形時的Μ方向作測定。 <一面外部霧度値> 聚乙烯系薄膜的一面外部霧度値係依照JIS Κ 7105來 測定。即，作爲一面霧度値（Hs)，係於聚乙烯系薄膜之動摩 擦係數測定面的相反塗佈流動石鱲再測定霧度値。其次，作 爲內部霧度値（Hi)，係測定於已經一面上塗佈有流動石蠟的 霧度値。根據上述式（1 )，由這些値算出一面外部霧度値。 <薄膜外觀> 將高壓蒸氣滅菌後的容器包裝體（30cmx 3 Ocm)劃分爲9 個lOcmxlOcm的區域，目視觀察表面的皺裂狀態，算出呈均 勻毛玻璃狀良好外觀的區域數與不均勻的表面皺裂外觀不 良的區域數，根是下述基準作評價。 〇：呈現良好的外觀的區域數爲7〜9 △:呈現良好外觀的區域數爲4〜6 X :呈現良好外觀的區域數爲0〜3 <抗互黏性> 切斷高壓蒸氣滅菌後的容器包裝體及打開口，用手由容 器包裝體取出裝有蒸餾水的容器。從在此情況下取出的容易 性看，根據下述基準來評估包裝體的內面彼此的互黏性及包 裝體與容器間的互黏性。 〇：打開容器包裝體的口係容易的，裝有蒸餾水的 容器可完全沒有卡住地由包裝體容易取出。 200528507 χ:難以打開容器包裝體的口，即使打開口，裝有 蒸餾水的容器由於與包裝體強地互黏而難以取出。 ^ (結果） 將各例的評估結果~'起不於表1及表2中。 如表1中所示，於配合2種高密度聚乙烯、或高密度聚 乙烯及直鏈狀低密度聚乙烯的實施例1〜7中，所得到的聚 乙烯系薄膜之動摩擦係數皆爲0.40以下，一面外部霧度値 爲5 %以下，於使用其的包裝體中收納容器而成的容器包裝 體，雖然在包裝體中不含有滑劑或防黏連劑，但是在邊將包 φ 裝體內減壓邊在121°C以上施予高壓蒸氣滅菌的嚴苛處理 下，包裝體內面之間或包裝體/容器間也不會互黏，容器的 取出係極容易的。又，可明白本發明即使使用容易發生互黏 的丙烯系共聚物來構成容器，也不會呈現良好的抗互黏性。 再者，所得到的包裝體之薄膜外觀亦良好。 與其相對地，在配合當作乙烯系聚合物的僅1種高密度 聚乙烯之比較例1及比較例5中，所得到的聚乙烯系薄膜之 動摩擦係數爲超過0.4而大的，滑性差，一面外部霧度値亦 馨 低於5.0%而不良，使用其的包裝體之抗互黏性係顯著不良。 在配合當作乙烯系聚合物的僅1種高密度聚乙烯之加 有滑劑或防黏連劑的比較例2〜4中，所得到的聚乙烯系薄 膜之動摩擦係數爲0.4以下而滑性良好，但是使用其的包 裝體依然抗互黏性顯著不良。再者，在相對於1 00質量份乙 烯系聚合物配合多達0.5質量份防黏連劑的比較例2、3中， 所得到的包裝體之薄膜外觀係顯著不良。 -30- 200528507 在沒有配合當作乙烯系聚合物的高密度聚乙烯而配合 僅2種直鏈狀低密度聚乙烯的比較例6中，所得到的聚乙烯 _ 系薄膜之動摩擦係數及一面外部霧度値係良好的，但是使用 其的包裝體之薄膜外觀及抗互黏性係顯著不良。200528507 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a polyethylene film and a laminate of the film, a container, a packaging container, a packaging container, and a vinyl polymer composition. In particular, the present invention The invention relates to a polyethylene-based film, which has excellent mutual anti-adhesion even if it does not substantially contain a slip agent or an anti-blocking agent. There is no risk of foreign matter being mixed into the contents when the container is formed, and the appearance of the film is also Excellent [prior art] Polyethylene film is suitable for packaging φ filled with food or medicine, etc., or packaging made of various plastics or metals filled with food or medicine, etc. The latter container packaging body has various uses, for example, to prevent mechanical damage such as damage to the container, to prevent deterioration of the container contents due to transmission of oxygen or ultraviolet rays, etc., to protect the container or container contents, or to print The contents of the container or the method of using the container or the container are clearly stated. A packaging system for a container or a container can be obtained by forming a vinyl polymer or a composition thereof to obtain a polyethylene film, and the film is usually obtained by < § Hot-melt bonding to complete the desired shape (such as bag-shaped, etc.). Conventionally, in the polyethylene-based film used in a container or a packaging body for a container package, the films have adhered to each other. For example, while the roll-shaped film is stored in a warehouse or the like, the films are adhered to each other and are stuck together. If blocking occurs, it is difficult to process into a good shape in a process such as processing into a bag shape, and the sliding properties of the film are deteriorated, so that productivity may be reduced. In addition, after processing into a bag shape, etc., the contents of the container or packaging body were stored in 200528507 during storage, and the inner surfaces of the containers or packages adhered to each other, which deteriorated the opening properties and made it difficult to fill the contents. · In addition, in recent years, based on safety and health aspects, high-pressure steam sterilization of containers and packages made of cereals packed in packages has also been added. tendency. I have been exposed to high temperatures at high temperatures, although Gu tends to stick to each other. Particularly in medical applications, 'in order to maintain the quality of the cereal in the cereal bowl to a more stable quality, the packaging body is decompressed to reduce the space volume of the medical container and the packaging body, so that the packaging body and the medical container are in close contact with each other, Instead, it undergoes autoclaving under conditions prone to mutual adhesion || In particular, in the case where the contact surface of the package body (the outermost layer of the container) is made of a propylene-based polymer, in order to impart flexibility to the container, acryl or butyl-1 is often used as a copolymerization component. Can-based copolymers or those with elastomer components such as styrene-based elastomers and olefin-based elastomers are considered propylene-based copolymers. However, propylene-based polymers containing propylene-based copolymers or elastomer components and polyethylene-based copolymers The packaging body formed by the film is prone to mutual adhesion. In particular, in the acrylic polymer, mutual adhesion is extremely likely to occur between a container made of a propylene-ethylene random copolymer and a package made of a polyethylene film. Against this background, as a means to improve the anti-adhesion or slippage of polyethylene film, it has been proposed to add (a) inorganic or organic materials such as silica, talc, and spherical cross-linked polymethyl acrylate. Anti-blocking agents made from raw materials, or metal soap-based lubricants such as stearic acid bromide, and fatty acid amide-based lubricants that are widely used in thin-film lubricants such as erucamide (Invention Patent Document 1) , () 3) Adhering powder such as indica rice «powder on the film surface, (c) Physically roughening the film surface by embossing, etc. 200528507 to reduce the contact area, etc. (Invention Patent Document 2 etc.) . ^ * [Invention Patent Document 1] Patent No. 3 2 0007 5 00 [Invention Patent Document 2] JP-A No. 10-95466 [Summary of the Invention] Questions to be solved by the invention However, the above-mentioned prior art has The following questions. (a) If additives such as anti-blocking agents or slip agents are added, the powder falling from the cross section when the film is cut will contaminate the product, or the additives exuding from the surface will be mixed into the contents, etc. On the problem. (B) Similarly, when powders such as corn starch are adhered, it is not possible to avoid the health problems caused by mixing the powders into the contents. In particular, when performing operations such as autoclave sterilization by sealing the container and the packaging body, the additive contained in the packaging body is mixed into the content through the container wall due to the material of the container, and the content may deteriorate. (C) The technique of mechanically roughening the film surface has problems such as deteriorating the appearance of the film. The present invention has been made in view of the foregoing circumstances, and an object thereof is to provide a means for realizing a polyethylene-based film that is excellent in anti-adhesion and slip properties, does not have the risk of foreign matter being mixed into the contents when constructing a container, and has excellent film appearance, and uses An article such as a container of a polyethylene film having such characteristics. The inventor of this case found that by combining specific vinyl polymers, additives such as slip agents and anti-blocking agents can be substantially added to significantly improve mutual anti-adhesion and slip properties. this invention. Furthermore, although the reason for improving the anti-adhesion property of the present invention may not be clearly understood, it is presumed that the use of a resin composition containing a specific ethylene-based polymer 200528507 results in a uniformly roughened film on at least one side, which reduces the thickness. The contact area of M reduces mutual adhesion. That is, the present invention is: (1) A polyethylene-based film including a plurality of ethylene-based polymers having at least one of a composition, a density, and a melt flow index, which are characterized in that at least one of the above-mentioned ethylene-based polymers is at least one Those are high-density polyethylene, and at least one side has a coefficient of dynamic friction of 0. 40 or less, and a surface with a dynamic friction coefficient of 0.4 or less is a rough surface with an external haze 値 of 5% or more. (2) The polyethylene film described in (1) is characterized in that Contains | Slip agent and anti-blocking agent, (3) Polyethylene film as described in (1) or (2), characterized by the maximum melt flow index (MFRmax relative to the minimum) of all ethylene polymers The ratio of MFRmin MFRmax / MFRmin is 5 to 200. (4) The polyethylene film according to any one of (1) to (3), which is characterized by 100 parts by mass of the total amount of the ethylene-based polymer. It contains high-density polyethylene in a total amount of 20 to 100 parts by mass. In this manual, the definition of "melt flow index", "dynamic friction coefficient" and the reference to "external haze on one side" and its measurement method are described later. In addition, in the present hair line: (5) A kind of laminated body, which is characterized by having a polyethylene film according to any one of (1) to (4), and having the rough surface as the outermost surface, (6) ) The laminated body as described in (5), which is composed of the polyethylene film, has a sealing layer with the rough surface as a sealing surface, and has at least one supporting layer supporting it, 200528507 (7) The laminated body according to (5) or (6), wherein at least one layer selected from a light-shielding layer, a gas barrier layer, a printing layer, and a protective layer is provided inside the polyethylene-based thin te. In addition, the present invention is: (8) A container characterized by being made of a polyethylene film as described in any one of (1) to (4) or as described in any one of (5) to (7) (9) A packaging body for containers and packaging, characterized by being made of a polyethylene film as described in any one of (1) to (4) or as described in (5) to (7) The laminated body according to any one, and the innermost surface of which is the above-mentioned polyethylene film. (10) A container package characterized in that the container is tightly sealed and housed in the container according to (9). The packaging body is made by high-pressure steam sterilization. (11) The container and packaging body described in (10), characterized in that the temperature of high-pressure steam sterilization is 1 2 1 ° c or more, (12) such as (10) or The container and packaging body described in (η) is characterized in that the container is a medical container, (13) The container and packaging body described in any one of (10) to (12) is characterized in that it is at least most The outer layer is made of acrylic polymer. In addition, the present invention is: (14) B # polymer compositions, including at least one B-based polymer whose composition, density, and melt flow index are different, which are characterized by the above-mentioned ethylene-based polymers At least one of the polymers is a high-density polyethylene, and the film obtained by molding at a temperature of 180 ° to 2 60 ° C in the tree fl has a kinetic coefficient of friction of at least one side of each other. 40 or less, and a dynamic friction coefficient of 0-4 or less -9- 200528507 The surface is composed of a rough surface with an external haze 値 of 5% or more. (15) The ethylene-based polymer composition as described in (1) It is characterized in that it does not substantially contain a slip agent and an anti-blocking agent. (16) The vinyl polymer composition as described in (I4) or (15) is characterized by the melt flow index of all vinyl polymers. The ratio of the maximum 値 MFRmax to the minimum 値 MFRMiN MFRMAx / MFRmin is 5 to 200. (17) The ethylene-based polymer composition according to any one of (14) to (16), characterized in that it is 100 parts by mass of The total amount of the ethylene-based polymer contains 20 to 100 parts by mass of high-density polyethylene. φ Effect of the Invention By combining a specific ethylene-based polymer, the present invention can substantially not add additives such as a slip agent and an anti-blocking agent, and can significantly improve the film surface without physical treatment such as mechanical roughening. Improve anti-adhesion and slippage. Therefore, the present invention provides an ethylene-based polymer composition, a polyethylene-based film, and a laminate, which are excellent in mutual adhesion resistance and slipperiness, and do not risk foreign matter being mixed into the content when constructing a container or the like, and are therefore safe. Excellent sanitation and film appearance. In addition, by using the polyethylene-based film or laminate of the present invention, it is possible to provide a container, a container packaging container, or a container packaging body, which is excellent in anti-adhesion and slipperiness, and there is no risk of foreign matter being mixed into the contents. The safety and hygiene are excellent, and the appearance is also excellent. The polyethylene-based film of the present invention is made of a low-cost polyolefin and has a low cost, and its industrial price is extremely high. [Embodiment] Best Mode for Carrying Out the Invention -10- 200528507 The present invention will be described in detail below. "Ethylene-based polymer composition" ^ At least one of the composition, density, and melt flow index of the ethylene-based polymer composition of the present invention is several kinds of ethylene-based polymers, and the ethylene-based polymer system uses at least a high density Composition of polyethylene. The ethylene-based polymer may be a polymer composed of ethylene as the main component, and is not particularly limited. For example, the ethylene-based polymer may be a homopolymer of ethylene, and an ethylene-based copolymer of 3 to 20 carbon atoms. Polyolefin, or a polar group-containing ethylene-based copolymer made of ethylene and a compound containing a polar group copolymerizable therewith. Specific examples of the ethylene-based polyolefin include high-density polyethylene, linear low-density polyethylene, and high-pressure low-density polyethylene. The α-olefin used in the ethylene-based polyolefin may be, for example, propylene, butene, pentene, 丨 hexene, 4-methyl-1-pentene, 1-octene, 1-decene, i —Dodecene and the like, which can be used alone or in combination of two or more. Among these α-olefins, from the viewpoint of excellent heat resistance, particularly preferred are 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-octene, and the like. As specific examples of vinyl copolymers containing polar groups, for example, copolymers of ethylene and vinyl acetate, copolymers of ethylene with (meth) acrylic acid and their metal salts, and ethylene with (meth) acrylic acid can be used. Copolymers of alkyl esters, and copolymers of ethylene with alkyl esters of (meth) acrylic acid and unsaturated dicarboxylic acids such as maleic anhydride. Among ethylene-based polymers, when processed into containers or the like, from the viewpoint of less migration of taste or odor to the contents of foods, medicines, and the like, it is preferably B-11-200528507 storage-based polycombustion hydrocarbon. In the present invention, although it has been stated that at least high-density polyethylene is used as the ethylene-based polymer, the high-density polyethylene has all the characteristics of ethylene-based polyolefin smoke and is excellent in heat resistance. Also, since the linear low-density polyethylene is also excellent in heat resistance among ethylene-based polyolefins, it is preferable to use it. The ethylene-based polymer can be produced by a known production method such as a monolithic method, a solution method, a slurry method, or a gas phase method. In the polymerization, catalysts such as Ziegler-Nano catalysts or metal-penta catalysts can also be used. When producing low-density polyethylene or the like by a high-pressure method, a radical initiator can be used. . The melt flow index (hereinafter referred to as “MFR”) of the ethylene-based polymer measured according to j〗 S κ 7 2 1 0 at a temperature of 19 0 ° C and a load of 2 1 · 18 N is preferable. White is 1 to 50 g / 10 minutes. If the MFR is lower than this range, the moldability tends to be low, and if it exceeds this range, the strength and hot-melt adhesiveness tend to decrease. The composition of the present invention contains high-density polyethylene as the first ethylene-based polymer. Here, "high density polyethylene" means polyethylene having a density of 940,000 kg / cm3 or more as measured in accordance with JIS K6922-2. The higher the density, the better the heat resistance and mutual adhesion resistance. In particular, from the viewpoint of excellent mutual adhesion resistance during sterilization at a temperature of 1 2 rc or higher, the density of the high-density polyethylene used is preferably 945 kg / m3 or more, particularly preferably 950 kg / m3 or more. The upper limit of the density of the high-density polyethylene is not particularly limited, but the upper limit of the density of a commercially available high-density polyethylene is about 96 kg / m3, and the lower ones are easily available. From the standpoint of excellent moldability, heat resistance, and hot-melt adhesion, the mfr of the high-density polyethylene used is preferably 0.1 to 40 g / 10 minutes, and more preferably 02 to 20 g / 10 minutes. . The composition of the present invention further contains a second ethylene-based polymer that is different from at least one of the composition, density, and MFR of the i-th ethylene-based polymer. The second ethylene-based polymer is not particularly limited. From the standpoint that the taste or odor migrates to the contents of foods, pharmaceuticals, and the like when it is used as a container, vinyl-based polyolefins are preferred, especially from the viewpoint of heat resistance. In terms of superiority, high-density polyethylene or linear low-density polyethylene is preferred. Especially from the viewpoint of excellent heat resistance, it is also preferable to use a second ethylene polymer as the high-density polyethylene. When high-density polyethylene is also included as the second ethylene-based polymer, the density and / or MFR is made of a material different from the first ethylene-based polymer. The MFR type of the second ethylene-based polymer is not particularly limited, but from the standpoint of excellent φ shape, heat resistance, and hot-melt adhesion, it is preferably from 0.1 to 40 g / 10 minutes, and more preferably 0. 2 ~ 20 g / 10 minutes. It is used in the ethylene-based polymer composition of the present invention. The total amount of the high-density polyethylene contained in 100 parts by mass of the ethylene-based polymer is preferably 20 to 100 parts by mass, and particularly preferably 40 to 100 parts by mass. If the total amount of the high-density polyethylene is outside this range, fish eyes and the like may occur due to molding conditions and the like, and the appearance of the film may be deteriorated. Furthermore, in the case where the high-pressure low-density polyethylene, linear low-density polyethylene, and ethylene-based copolymer are contained, if the total amount exceeds 80 φ parts by mass, heat resistance or mutual resistance may not be clearly exhibited. There is a risk of improving the viscosity. The maximum MFR of all ethylene polymers constituting the composition of the present invention, the ratio of MFRmax to the minimum MFRmin, MFRmax / MFRmin is preferably 5 to 200, more preferably 10 to 150, and particularly preferably 10 to 100. . The inventor of the present case found that when the MFRmax / MFRmin is within this range, the film surface can be stably roughened and good anti-adhesion properties can be obtained. In addition, although undetermined -13-200528507 determines the reason why the MFR ratio is within this specific range, it will show good anti-adhesion, but it is speculated that when the MFR ratio is within the above range, it is within the range of possible film formation. The vinyl polymers are in an unevenly mixed state with each other, so that the film surface can be easily roughened. When MFRmax / MFRmin is less than 5, it is difficult to make the film surface rough, and the dynamic friction coefficient tends to be high. On the other hand, if the MFRmax / MFRmin exceeds 200, the formability is deteriorated, gelation, fish eyes, and the like tend to deteriorate the appearance of the film, and it is difficult to form a good rough surface, which is not suitable. φ In addition, from the viewpoint of easily forming a good rough surface, the amount of the ethylene-based polymer having the maximum MFR (MFRmax) in 100 parts by mass of the total amount of the ethylene-based polymer is preferably 20 to 80 parts by mass, more preferably It is 30 to 70 parts by mass, and particularly preferably 40 to 60 parts by mass. From the viewpoint of exhibiting more excellent anti-adhesion properties, it is preferable to use high-density polyethylene as the ethylene-based polymer having the maximum MFR (MFRmax). In particular, the ethylene-based polymers having the maximum MFR (MFRmax) and the minimum MFR (MFRMIN) are all made of high-density polyethylene. They are made of resin components other than those containing high-density polyethylene. The formation system is more suitable because it exhibits better anti-adhesion and heat resistance. The composition of the present invention does not substantially contain a slip agent and an anti-blocking agent, and the dynamic friction coefficients of at least one side of the films formed at a tree temperature of 180 ° to 2600 ° C are ≦ 40. Those with a maximum of 0.35 or better and a maximum of 0.3 are particularly sufficient. In particular, the dynamic friction coefficient of the surfaces that are not in contact with the i-th roller during forming is preferably 0. 40 or less. Here, the "first roll" means a first roll (cooling roll) for cooling a molten resin extruded from a die in a flat film forming machine such as a τ -14-200528507 die film forming machine. . The cylindrical film forming machine such as a blown film forming machine refers to a first roll used when a cylindrical film is extruded from a die. That is, in the cylindrical film obtained by blown film molding or the like, the "surface not in contact with the first roll" corresponds to the inner surface of the cylindrical film. When the dynamic friction coefficient of any surface exceeds 0 · 40, slippage becomes worse. When the film is processed into a bag or the like, the productivity decreases, which is not suitable. The lower limit of the coefficient of dynamic friction is not particularly limited, but is preferably 0. i about. When the coefficient of dynamic friction is too low, the film will be too slippery when the film is rolled into a tube, making the edge surface of the tube uneven. During lamination or bag processing, the film slips out of the tube and slips on the tube. The risk of snakes and other ills. In particular, the higher the density of the high-density polyethylene used, or the greater the amount of high-density polyethylene that accounts for the total amount of the composition, the lower the tendency of the dynamic friction coefficient, which is more preferable. In addition, in this specification, the "dynamic friction coefficient" refers to the use of two polyethylene-based films, and the same surfaces are superimposed. The sliding speed is 100 mm / min, 200 g load, and contact area in accordance with JIS K7 125. It has a square shape with an area of 4000 mm2, and the sliding direction is taken as the M direction during film formation. The composition of the present invention does not substantially contain a slip agent and an anti-blocking agent, and the film has a dynamic friction coefficient of 0 formed at a resin temperature of 180 to 260 ° C. The external haze of one of the faces below 40 is more than 5%, preferably 8% or more. "External haze on one side" means haze (Hi (internal haze)) measured by uniformly applying flowing paraffin on both sides of the film, and haze (Hs) measured by applying fluid paraffin on only one side. (—Face haze 値), 値 ′ calculated according to the following formula (1) 200528507 is the number 値 of the index of haze related to the degree of roughening. In the present specification, 'the internal haze' and the one-side haze 'are measured in accordance with JIS K7 105. External haze on one side 値 = Hs-Hi --- (1) It is preferable to use a polyethylene film obtained from the composition of the present invention or a laminated body having the same to form a container or a packaging body for packaging. The surface with an external haze of 5% or more is used as the sealing surface (ie, the inner surface). This shows good anti-adhesion and openness. When the external haze 値 on either side of the film is less than 5%, it cannot fully exhibit the mutual adhesion resistance φ and the opening property, so it is not suitable. In particular, the higher the density of the high-density polyethylene used, or the greater the amount of high-density polyethylene that accounts for the total amount of the composition, the more external haze tends to increase, so it is more suitable. The external haze 値 can also be measured in the same manner as in a laminated body, but in the case of having an opaque layer such as aluminum foil, the layer is removed and then measured. The composition of the present invention contains the above-mentioned first and second ethylene-based polymers as essential components, but may also be blended with other first and second ethylene-based polymers that are different in at least one of composition, density, and MFR. One or more types of ethylene-based polymers. Further, other polymers may be appropriately blended within a range not departing from the object of the present invention. Examples of other polymers include, but are not limited to, various styrene-based elastomers such as propylene-based polymers, ethylene · α-olefin elastomers, and styrene · butadiene elastomers. However, from the viewpoint of being able to easily maintain a sufficiently unevenly mixed state showing a good rough surface of -16-200528507, it is preferable that the polymer having the largest MFR and the smallest MFR among all the polymers is an ethylene-based polymer. Other polymers. In addition, as long as the effect of the present invention is not significantly impaired, in order to improve the improvement, volume reduction, and reduction of heat during combustion and disposal, organic or inorganic additives, or other commonly used known additives, such as Electrostatic agents, antioxidants, anti-fog agents, organic or inorganic pigments, ultraviolet absorbers, dispersants, etc. However, it must be substantially free of slip agents and anti-blocking agents. Specific examples of the lubricant are metal soap-based lubricants such as calcium stearate and magnesium stearate, esters of higher fatty acids with 4 to 22 carbons, and straight-chain aliphatic monohydric alcohols with 2, 4 and 5 carbons. , Tributyl citrate, adipic acid-di-2-ethylhexyl ester, ethylene glycol montanate, poly (1,3-butanediol adipate), ethinoyl castor Methyl ester, poly (propylene glycol-adipic acid-lauric acid) ester, poly (1,3-butanediol, 1,4-butanediol, octyl adipate) ester, rice bran wax ester and adipic acid diester Monohydric, polyhydric alcohol fatty acid ester-based lubricants such as decyl esters, oleylamine, erucamide, behenylamine, ethylene oleylamine, hexamethylene bisoleylamine, and ethylene bis behenylamine And other amine-based lubricants. Specific examples of the anti-blocking agent include organic fine particles composed of cross-linked substances such as polymethyl methacrylate, polystyrene, and polyamine, silica, zeolite, diatomite, talc, kaolin, and Inorganic fine particles such as amorphous aluminosilicate. The expression "substantially free of slip agent and anti-blocking agent" means that it may be contained in an amount that does not bleed out the surface of the polyethylene film. Specifically, the allowable content of the lubricant in the composition is preferably less than 0.3% by mass, and more preferably less than 0.3. 2% by mass, particularly preferably as low as -17- 200528507 1% by mass. Also, the allowable content of the anti-blocking agent in the composition bamboo is preferably 0. 05 mass%, more preferably less than 0.3 mass%, even more preferably less than 0. 〇 1% by mass. The metal soap-based lubricant in the lubricant can be used for resin raw materials because it can gelatinize the raw resin well or neutralize and recover acidic compounds such as chlorine compounds used as catalysts during polymer production. If it is already contained in the middle and early days, it may have to be contained. Therefore, it is preferable not to contain at least an amidine-based lubricant and a fatty acid ester-based lubricant that are widely used as a lubricant for films. Furthermore, when no slipping agent or anti-blocking agent is contained at all, there is no risk of bleeding at all, so it is of course the best. · The method for preparing the composition of the present invention is not particularly limited, but it may be, for example, mixing the respective components in a mixer such as a mixing roll, a hermetic mixer, a Hanschel mixer, a drum, and a ribbon blender. The method of the components is a method of continuously polymerizing different ethylene-based polymers in at least one reactor to form nine pellets. Among them, a method of obtaining a composition by continuous polymerization is preferable from the viewpoint of economy. Since the composition of the present invention is constituted as described above, the present invention combines a specific ethylene-based polymer, so that it can significantly improve the anti-sticking or slipping properties even without substantially adding a slip agent and an anti-blocking agent. Since the composition of the present invention has these characteristics, it is also suitable as a material for molded products such as hollow molding, injection molding, compression molding, and vacuum molding in addition to thin films. The molded article obtained by using the composition of the present invention has excellent mold release properties during molding. In addition, bottles obtained by hollow molding, etc., or containers such as plates obtained by compression molding, vacuum molding, etc., have good take-out properties when they are packaged in various packages. -18- 200528507 "Polyethylene-based film" The polyethylene-based film of the present invention is characterized by being formed into a film shape from the above-mentioned ethylene-based polymer composition of the present invention. In other words, among the polyethylene-based films in which at least one of Q has a composition, looseness, degree, and melt flow index that are different from each other, at least one of the above-mentioned ethylene-based polymers is a high-density polymer. Ethylene, at least one side has a dynamic friction coefficient of 0. A surface with a surface roughness of 40 or less and a dynamic friction coefficient of 0.4 or less is a rough surface with an external haze 値 of 5% or more. Furthermore, it is preferable that the lubricant and the anti-blocking agent are not substantially contained. φ In addition, as described above, when the polyethylene-based film of the present invention is used to form a bag for Rongyi or Guyi packaging, the rough surface of the polyethylene storage film (having an external haze of one or more of 値) Surface) is preferably used as the sealing surface (ie, the inner surface). The composition of the present invention or a pelletized product thereof using an extruder or the like can be formed by various film forming methods to obtain a polyethylene film of the present invention. Examples of the film forming method include a water-cooled or air-cooled extrusion blow molding method, and a T-die method. In the present invention, as the polyethylene-based film of the present invention, an unstretched film formed by a thin-film molding machine such as a τ die molding machine or a blow molding machine can be used. Furthermore, if necessary, a stretching treatment can be applied, but in use as. In the case of the sealing film, it is preferable to use a non-stretched film formed by a film forming machine, that is, a non-stretched film that has not been subjected to an active stretching treatment. When manufacturing the polyethylene-based film of the present invention, the resin temperature is not particularly limited, but it is preferably 180 to 260 ° C, and more preferably 190 to 250, when measured at the position immediately after being ejected from the die exit during film formation. ° C, particularly good 200 ~ -19- 200528507 250 ° C. If the resin temperature exceeds 260 t :, although the vinyl polymers are mixed uniformly, the film surface may be difficult to form a rough surface. If the temperature is lower than 180 ° C ', the mixing system of the ethylene-based polymers is insufficient, and there is a risk of appearance defects. The thickness of the film of the present invention is not particularly limited, but from the viewpoints of economy and processability to containers and the like, it is preferably 5 to 1,000 µm, more preferably 10 to 400 µm, and particularly preferably 30 to 200 µm. Since the polyethylene-based film of the present invention is obtained by using the composition of the present invention described above, it does not substantially contain a slip agent and an anti-blocking agent, and is not mechanically roughened on the film surface, i.e., is not applied. Semi-felt rolls, felt rolls, double felt rolls, embossed rolls, other special processing rolls and other physical treatments to impart unevenness to the film surface, etc. can also exhibit excellent mutual adhesion or slip resistance. However, it is needless to say that the polyethylene film of the present invention may be subjected to these physical treatments. Since the polyethylene film of the present invention exhibits excellent anti-adhesion or slip resistance, the films do not stick to each other while being rolled into a roll for storage. Furthermore, when it is processed into a container, a packaging body for container packaging, or the like, since the film does not stick and has good slipperiness, the productivity of the container and the like can be improved. In addition, since the film is not easily charged, it can stably produce high-quality containers without being caught in dust or foreign matter. By using the polyethylene-based film of the present invention, it is possible to provide a container having excellent mutual anti-adhesion properties, good content filling, or taking out a container from a packaging body, a packaging body for container packaging, or the like. In addition, since the polyethylene-based film of the present invention does not contain additives such as an anti-blocking agent and a slip agent, when the container or the like is formed, there is no risk of foreign matter being mixed into the contents due to the additives. In addition, since the film surface does not require physical treatment such as -20-200528507, the appearance of the film is also excellent. In addition, since the polyethylene-based film of the present invention has a fine concave-convex shape on the film surface, a printing ink, an adhesive, and the like can be easily and well adhered by the 'anchoring effect', and the printing characteristics are also excellent. "Laminate" The polyethylene-based film of the present invention described above can be used in the form of a paper or a single-layer sealing film, but it can also be used in the form of a laminate containing one or the other layer. The laminated body of the present invention is characterized by having the rough surface of the polyethylene film of the present invention (a surface having an external haze of 5% or more) as the outermost surface. As described above, when a container or a packaging body for packaging a container is formed using the laminated body of the present invention, it is preferable that the rough surface of the polyethylene-based film of the present invention is used as the sealing surface (that is, the inner surface). As an aspect of the laminated body of the present invention suitable as a sealing film, for example, a sealing layer using the rough surface of the polyethylene-based film of the present invention as a sealing surface and at least one supporting layer supporting it can be co-extruded. Constructors who are layered by law, etc. The support layer is not particularly limited, but a general polyolefin such as an ethylene-based polymer or a propylene-based polymer is preferably used. In view of the excellent adhesion between the sealing layer and the supporting layer, it is particularly preferable to use an ethylene-based polymer. Examples of the propylene polymer to be used include homopolypropylene, propylene-ethylene random copolymer, and diene-ethylene block copolymer. Among them, propylene-ethylene block copolymer is preferred. By using the exemplified support layer, better transparency can be obtained than a sealing film having a single-layer structure. The overall thickness of the laminated body is not particularly limited, but when it is used as a sealing thin -2 1-200528507 film, taking into consideration the sealing property, it is preferably 20 to 25 μm, particularly preferably 30 to 15 μm. The thickness ratio of the polyethylene film of the supporting layer to the sealing layer (supporting layer / sealing layer) is not particularly limited, but when considering the sealing property, it is preferably 50 to 95/50 to 5. As another aspect of the laminated body of the present invention, for example, at least one layer selected from a light-shielding layer, a gas barrier layer, a printing layer, and a protective layer may be provided inside the polyethylene-based film of the present invention. The constituent components of the light-shielding layer, the gas barrier layer, the printing layer, and the protective layer are not particularly limited, but may be, for example, polyethylene, polypropylene, ethylene-vinyl acetate copolymer saponification, aluminum foil, biaxial stretching, or Unstretched polyamide, biaxially stretched or unstretched polyethylene terephthalate (PET) or polyethylene naphthalate (PEN), alumina vapor-deposited PET-silica vapor-deposited PET Wait. As another aspect of the laminated body of the present invention, for example, the polyethylene-based film of the present invention can be used as a sealing layer. For the laminated body having at least one supporting layer for supporting it, at least one further layer is selected from the group consisting of On light-shielding layer, gas-barrier layer, printing layer and protective layer. The method for preparing the laminated body of the present invention is not particularly limited, and may be, for example, melting using a water-cooled or air-cooled (co) extrusion (multilayer) blow molding method, (co) extrusion (multilayer) T-die method, or the like The forming method is to laminate several layers at the same time. The dry lamination method is used to form each layer of film or sheet. The lamination method that requires the use of an adhesive and the like is used. On the one hand, the film or sheet is formed in advance and on the one hand. A method of melting and laminating other layers. Among these, in view of the ease with which a variety of layers can be laminated, dry lamination or extrusion lamination are particularly preferred. Since the laminated body of the present invention has the rough surface of the poly-22-200528507 ethylene-based film of the present invention having a fine uneven shape as the outermost surface, it can exhibit mutual anti-adhesion similarly to the polyethylene-based film of the present invention. Furthermore, in the case where the polyethylene-based film of the present invention is laminated on one side of the support layer, a laminated body exhibiting mutual adhesion resistance and having a high surface smoothness on the side of the support layer is obtained. On the other hand, in the case where the polyethylene-based film of the present invention is used on two outer layers and each outermost surface is rough, in a slitting process or the like for processing the laminated body of the present invention into a bag shape, the present is delivered by a roller. In the case of a laminated body, the film surfaces in the contact state are mutually slippery, and exhibit a significant mutual adhesion prevention effect. Furthermore, since the laminated body is not easy to be charged, it is difficult to be involved in dust and foreign matter, and it has excellent mutual adhesion resistance, so it can be smoothly carried by the laminator or slitting roller. Since the laminated body of the present invention uses the rough surface of the polyethylene film of the present invention having a fine uneven shape as the outermost surface, printing inks or adhesives can be easily and well adhered by a misalignment effect, and printing characteristics And so on. "Container" The container of the present invention is characterized by comprising the polyethylene film of the present invention described above or the laminated body of the present invention. Examples of the container of the present invention include a container such as a flexible bag in which the polyethylene-based film of the present invention is used as the innermost layer. In this aspect, the rough surface of the polyethylene film of the present invention is preferably used as the innermost surface. Since the inner surfaces of the containers are excellent in mutual anti-adhesion and easy to open, there is no risk that they will not open when filling the contents. Other aspects of the container of the present invention include, for example, a container such as a bag, a tray, etc., using the polyethylene film of the present invention as the outermost layer. In this aspect, it is preferable that the rough surface of the polyethylene-based film invented in this -23-200528507 is taken as the outermost surface. The polyethylene-based film or laminate of the present invention is melt-bonded by heat, high frequency, ultrasound, or the like, and processed into a bag-like shape to obtain a bag-like container. When the polyethylene-based film of the present invention is used as the outermost container, mutual adhesion between the containers can be suppressed when the package is stacked or stored. In addition, when the container is vacuum-tightly packed or the like as an outer package, the take-out property is also excellent. In particular, a container made of the polyethylene film of the present invention alone or a container made of the laminated body of the present invention with both the innermost layer and the outermost layer made of the polyethylene film of the present invention These two effects are more appropriate. Furthermore, in a container in which both the innermost layer and the outermost layer are made of the polyethylene film of the present invention, it is preferable to use the rough surface of the polyethylene film of the present invention as the innermost surface and the outermost layer. In addition, since the container of the present invention is provided with the polyethylene film of the present invention or the laminated body of the present invention, there is no risk of foreign matter being mixed in the content, and the film has excellent appearance and excellent printing characteristics. "Packaging body for container packaging" The packaging body for container packaging according to the present invention is characterized in that it is composed of the polyethylene film of the present invention or the laminated body of the present invention, and the innermost surface is the rough surface of the polyethylene film. . The packaging system for container packaging of the present invention contains therein a container made of a synthetic resin or the like, and particularly a container made of a soft scorch material such as a film. The polyethylene-based film or the laminate of the present invention is heat-treated. , High frequency, ultrasonic, etc. to melt and stick, and processed into bags and so on. According to the present invention, a packaging body for container packaging can be obtained, in which the inner surfaces of the packaging -24-200528507 are not adhered to each other or the outer surface of the stored container and the inner surface of the packaging body are not likely to be mutually adhered. In addition, since the packaging body for container packaging of the present invention is provided with the polyethylene film of the present invention or the laminated body of the present invention, there is no risk of foreign matter being mixed into the content, and the film also has excellent appearance and excellent printing characteristics. . "Container and package" The container and package of the present invention is characterized in that the container is housed in the container for packaging of the container and package of the present invention, and is sterilized by high-pressure steam. · The container used in the container package of the present invention is not particularly limited, but from the standpoint of moldability and economy, it may be a single-layer or multi-layer sheet or film made of synthetic resin, for example. Bag-shaped container and so on. As a container material, conventional poly can be used. Ethylene, vinyl chloride, etc., and acrylic polymers based on heat resistance. High-pressure steam sterilization is generally used in the fields of stills and medical fields, and can be carried out by methods such as water flooding and spraying. The autoclave sterilization temperature is not particularly limited, but from the viewpoints of improvement in productivity and productivity in recent years, such as the preservation of flavor in foods and the improvement in sterilization, the conventional tendency has been to gradually increase from about 100 to 1 18 ° c. Recently, High temperatures above i2rc can be implemented. Furthermore, in many cases, high pressure steam sterilization is performed by decompressing the inside of the package to make the container and the package close to each other '. In addition, when the container is used, the tubes and joints used for storage are decompressed in the packaging body to loosen the container and the packaging body with their storage contents, and the number of people performing autoclaving is increasing. The container packaging system of the present invention is excellent in heat resistance, and is excellent in anti-stickiness after autoclaving at a high temperature of -25-200528507 or more than 121t. In general, when the container is made of a sheet or film made of a flexible polyolefin resin, although the container and the packaging body are likely to be closely adhered to and adhered to each other, the container packaging body of the present invention is not affected in this case. Mutual adhesion occurred. In particular, as explained in "Background Technology", a container made of a propylene-based polymer is used as the container's contact surface (the outermost layer of the container). In particular, it is a propylene-based copolymer or an elastomer containing propylene. A container made of a polymer is liable to cause mutual adhesion between the container and the package body, and it is difficult to remove the container after the container package body is opened. However, if the container package body of the present invention is' excellent in mutual adhesion resistance, the container Removing the system is extremely easy. As described above, | particularly in a container package in which the outermost layer of a container is a container made of a propylene polymer, the anti-sticking effect of the present invention can be more clearly exhibited. In the container package of the present invention, the inside of the package can be decompressed so that the container and the package are sterilized by high-pressure steam under a strong adhesion state, and mutual adhesion does not occur even under severe conditions. The present invention is more suitable for storing containers and packages for medical containers or food containers. In particular, it is more suitable for packaging of medical containers such as film bags, blow-molded bags, and blow-molded bottles for filling contents such as high-calorie infusions and peritoneal dialysis (CAPD) infusion (CAPD). In the present invention, since additives such as a slip agent and an anti-blocking agent are not substantially used, there is no risk of contamination of the contents of the container due to their bleeding, etc., and it is extremely hygienic. [Examples] Examples and comparative examples are given below to describe the present invention in more detail, but the present invention is not limited to the following examples. -26- 200528507 ψ (Examples 1 to 7, Comparative Examples 1 to 8) < Composition > An ethylene-based polymer and an additive were prepared with the compositions shown in Tables 1 and 2, and they were mixed in a Hanschel mixer to obtain an ethylene-based polymer composition. Next, a T-die forming machine equipped with a mirror roll as the first roll for cooling was formed at a resin temperature of 23 ° C to obtain a polyethylene-based film having a thickness of 70 µm. The unit of the blending amount shown in the table is parts by mass. < Packaging body > Prepare two pieces of the obtained film which are cut into 35 cm x 3 5 cm, overlap the surface that is not in contact with the first roller for cooling, and perform hot-melt bonding between the three edges to obtain a bag-shaped φ container for packaging. Package. Conditions for hot-melt bonding: seal width 1 cm, heat-seal upper temperature 180 ° C, lower temperature 60 ° C, pressure 0.2MPa, processing time 1 second. <Container> In a T-die molding machine, a propylene-ethylene random copolymer having an MFR of 2 g / 10 minutes under a load of 21.18 N according to JIS K7210 at 230 ° C was molded at a temperature of 230 ° C, and A film having a thickness of 200 μm was obtained. The obtained film was cut into a 20 cm x 20 cm square, and the two pieces were combined together, and then hot-melt bonded between the three edges of the Lu, and stored in the aforementioned packaging body to prepare a bag-shaped container. Conditions for hot-melt bonding: sealing width lcm, temperature of the upper part of the heat-sealing rod 2 10 ° C, temperature of the lower part 60t, pressure 0.2MPa, processing time 1 second. The container was filled with 1 liter of distilled water, and hot-melt bonding was performed between the unmelted edge ends to seal it. < Container package > The container containing distilled water obtained as described above was stored in the aforementioned package body-27- 200528507 'while decompressing the package body with a vacuum pump, hot-melt the opening of the package body' to A container package was obtained. In the spray type autoclave, it is "124". (: The container package is subjected to a sterilization treatment for 30 minutes. The vinyl polymer, anti-blocking agent and slip agent used are shown below. MFR is measured at a temperature of 190T: and a load of 21.18N in accordance with JIS K 7210. Density Measured with density gradient tube according to Π SK 6 9 2 2-2. MFRmax / mFRmin is also listed in the table. (Ethylene polymer) HD1: MFR 15g / 10min, high density of 965kg / m3 Polyethylene HD2: MFR 8g / 10min, high-density polyethylene with a density of 955kg / m3 HD3: MFR0.2g / 10min, high-density polyethylene with a density of 960kg / m3 HD4: MFR0.6g / 10min, density 955kg / m3 high-density polyethylene HD5: MFR 5g / 10 minutes, 955kg / m3 high-density polyethylene HD6: MFR 12g / 10 minutes, density 955kg / m3 high-density polyethylene HD7: MFR 0.08g / 10 Min., Density 950kg / m3 of high density polyethylene LL1: MFR 0.5 g / 10 minutes, linear low density polyethylene of density 922kg / m3 ethylene · 1-hexene copolymer LL2: MFR 15 g / 10 minutes, Ethylene · 1-hexene copolymer of linear low-density polyethylene with a density of 93 5 kg / m3, LL3: MFR 0.2 g / 10 min, density of 93 5 kg / m3 Linear low-density polyethylene ethylene · 1-butene copolymer LD1: High-pressure low-density polyethylene (additive) C1: MFR 50 g / 10min, density 917kg / m3 C1: Silica-based anti-blocking agent C2: Polymethyl acrylate (PMMA) series anti-blocking agent C3: erucamide (evaluation item and evaluation method) < Coefficient of dynamic friction > The coefficient of dynamic friction of polyethylene film is based on; TIS K 7125, superimposed -28- 200528507 The surface in contact with the first roller, at a sliding speed of 100 mm / min, a load of 200 g, and contact area A square shape with an area of 4000 mm 2 was measured, and the sliding direction was measured in the M direction during film formation. < Side external haze 値 > The side external haze of the polyethylene film is measured in accordance with JIS K 7105. That is, as one side haze 値 (Hs), the flow rate 涂布 was applied to the opposite side of the kinetic friction coefficient measurement surface of the polyethylene film, and then the haze 测定 was measured. Next, as the internal haze 値 (Hi), the haze 値 was measured on one side coated with flowing paraffin. From the above expression (1), the external haze 式 is calculated from these 値. < Appearance of the film > The container package (30 cmx 3 Ocm) after autoclaving was divided into 9 regions of 10 cmx 10 cm, and the surface wrinkled state was visually observed to calculate the number of regions with a uniform frosted glass appearance and unevenness. The number of areas with poor surface wrinkle appearance was evaluated based on the following criteria. 〇: The number of areas showing a good appearance is 7 to 9 △: The number of areas showing a good appearance is 4 to 6 X: The number of areas showing a good appearance is 0 to 3 < Mutual anti-adhesion > The container package and the opening after the autoclaving were cut off, and the container containing the distilled water was taken out from the container package by hand. From the ease of taking out in this case, the mutual adhesion between the inner surfaces of the packaging body and the mutual adhesion between the packaging body and the container were evaluated based on the following criteria. 〇: It is easy to open the mouth of the container package, and the container containing distilled water can be easily taken out of the package without any jam. 200528507 χ: It is difficult to open the mouth of the container package. Even if the mouth is opened, the container containing distilled water is strongly adhered to the package body and difficult to remove. ^ (Results) The results of the evaluation of each case are listed in Tables 1 and 2. As shown in Table 1, in Examples 1 to 7 in which two types of high-density polyethylene, or high-density polyethylene, and linear low-density polyethylene were blended, the kinetic friction coefficients of the obtained polyethylene films were 0.40. In the following, a container package formed by accommodating a container in a package using the external haze 値 of 5% or less is included in the package. Although the package does not contain a slip agent or an anti-blocking agent, the package φ is packed on the side. Under the severe treatment of high-pressure steam sterilization at 121 ° C or higher, the inside of the package will not stick to each other or between the package / container, and the removal of the container is extremely easy. It is also clear that the present invention does not exhibit good anti-adhesion properties even when a container is formed by using a propylene copolymer which is liable to cause mutual adhesion. Moreover, the film appearance of the obtained package was also good. In contrast, in Comparative Example 1 and Comparative Example 5 in which only one kind of high-density polyethylene was blended as an ethylene-based polymer, the obtained polyethylene-based film had a large dynamic friction coefficient of more than 0.4, and was slippery. On the one hand, the external haze is also less than 5.0%, which is not good, and the anti-sticking property of the package using it is significantly poor. In Comparative Examples 2 to 4 in which only one type of high-density polyethylene as a vinyl polymer was blended with a slip agent or an anti-blocking agent, the obtained polyethylene film had a slip coefficient of 0.4 or less and slip Good, but the package using it still had significantly poor anti-adhesion. Furthermore, in Comparative Examples 2 and 3 in which as much as 0.5 part by mass of an antiblocking agent was added to 100 parts by mass of the ethylene-based polymer, the film appearance of the obtained package was significantly poor. -30- 200528507 Comparative Example 6 in which only two kinds of linear low-density polyethylene were blended without blending high-density polyethylene as an ethylene-based polymer, the kinetic coefficient of friction of the obtained polyethylene_series film and one surface outer The haze is good, but the appearance of the film and the anti-sticking property of the package using it are significantly poor.
在即使配合2種高密度聚乙烯但MFR max/MFRmin 低方令 5的比較例7中，所得到的聚乙烯系薄膜之動摩擦係數係超 過〇·4，一面外部霧度係低於5.0%，使用其的包裝體之抗互 黏性係顯著不良。 在配合當作乙烯系聚合物的高密度聚乙烯和高壓法低密度 φ 聚乙嫌且MFRmax/MFRmin超過200的比較例8中，所得到 的聚乙烯系薄膜之動摩擦係數係超過0.40，使用其的包裝體 之薄膜外觀及抗互黏性係顯著不良。In Comparative Example 7 in which MFR max / MFRmin was reduced to 5 even when two kinds of high-density polyethylene were blended, the obtained polyethylene-based film had a kinetic friction coefficient of more than 0.4 and an external haze of less than 5.0%. The anti-tackiness of the package using it is significantly poor. In Comparative Example 8 in which a high-density polyethylene and a high-pressure method low-density φ polyethylene were blended as an ethylene-based polymer and the MFRmax / MFRmin exceeded 200, the obtained polyethylene-based film had a kinetic coefficient of friction of more than 0.40. The film appearance and anti-adhesion of the package were significantly poor.
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I撇 抗互黏性 〇 〇 〇 〇 〇 〇 〇 薄膜外觀 〇 〇 < 〇 〇 〇 < 一面外部霧度値 (%) 10.0 VO 〇〇 〇〇 CN 00 m 〇〇 ON o \6 動摩擦係数 0.25 0.21 0.30 0.28 0.38 0.22 _1 1 0.33 MFRmax/MFRmin m m 〇 § 188 添加剤 (配合量） 1 1 1 1 1 1 1 乙烯系聚合物 (配合比） HD1/HD3 ( 30/70) HD1/HD3 (50/50) s 〇 ffi (N \ \ CN 〇 Q 〇〇 HD2/HD4 (50/50) HD5/LL1 (70/30) VO _ Q ο DC »〇 \ \ cn o η ό HD7/HD1 ( 50/50) 實施例1 實施例2 實施例3 實施例4 實施例5 實施例6 實施例7 200528507I. Anti-mutual adhesiveness. 00. 00. Film appearance. 0. < 〇〇〇 < External haze 面 (%) 10.0 VO 〇〇〇〇〇CN 00 m 〇〇ON o \ 6 Dynamic friction coefficient 0.25 0.21 0.30 0.28 0.38 0.22 _1 1 0.33 MFRmax / MFRmin mm 〇 § 188 Added 剤 (mixing amount) 1 1 1 1 1 1 1 Vinyl polymer (mixing ratio) HD1 / HD3 (30/70) HD1 / HD3 (50 / 50) s 〇ffi (N \ \ CN 〇Q 〇〇HD2 / HD4 (50/50) HD5 / LL1 (70/30) VO _ Q ο DC »〇 \ \ cn o η HD7 / HD1 (50/50 ) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 200528507
(N嗽 抗互黏性 X X X X X X X X 薄膜外觀 〇 X X 〇 〇 X 〇 X 一面外部霧度値 (%) τ—Η vn 寸· cn VO o (N 〇〇 <N (N v〇 00 動摩擦係数 0.48 0.30 0.32 0.18 0.52 0.31 0.50 0.85 MFRmax/MFRmin 1 1 1 1 1 VO T—H 250 添加剤 (配合量） 1 1 Cl (0.5) C2 (0.5) C3 (o.l) 1 1 1 1 乙烯系聚合物 (配合比） HD2 (100) HD1 (100) HD2 (100) HD2 (100) HD5 (100) LL2/LL3 (50/50) m ^ Q 〇 \ \ (NO n HD3/LD1 (50/50) 比較例1 比較例2 比較例3 比較例4 比較例5 比較例6 比較例7 比較例8 200528507 [産業上的利用可能性] 本發明的乙烯系聚合物組成物及使用其的聚乙；(¾系薄 膜、積層體係抗互黏性及滑性優良，而且於構成容器等時， 沒有對內容物混入異物之虞，薄膜外觀亦優良，故較適用於 充塡高卡路里輸液、腹膜透析用輸液（CAPD)等的薄膜袋、吹 塑袋、吹塑瓶等的醫療用容器或食品容器、包裝它的包裝體 、充塡高卡路里輸液、腹膜透析用輸液（CAPD)等內容物的薄 膜袋、包裝吹塑袋、吹塑瓶等醫療用容器的容器包裝體等。 於本發明中，由於實質上不使用滑劑及防黏連劑等的添加劑 ’而沒有它們的滲出等污染容器內容物之虞，故極衛生的。 -34-(Nack anti-mutual adhesion XXXXXXXX film appearance 〇XX 〇〇X 〇X external haze 値 (%) τ—Η vn inch cn VO o (N 〇〇 < N (N v〇00 dynamic friction coefficient 0.48 0.30 0.32 0.18 0.52 0.31 0.50 0.85 MFRmax / MFRmin 1 1 1 1 1 VO T—H 250 Add 剤 (mixing amount) 1 1 Cl (0.5) C2 (0.5) C3 (ol) 1 1 1 1 Vinyl polymer (mixing ratio ） HD2 (100) HD1 (100) HD2 (100) HD2 (100) HD5 (100) LL2 / LL3 (50/50) m ^ Q 〇 \ (NO n HD3 / LD1 (50/50) Comparative Example 1 Comparison EXAMPLE 2 COMPARATIVE EXAMPLE 3 COMPARATIVE EXAMPLE 4 COMPARATIVE EXAMPLE 5 COMPARATIVE EXAMPLE 6 COMPARATIVE EXAMPLE 7 COMPARATIVE EXAMPLE 8 200528507 [Industrial Applicability] The ethylene-based polymer composition of the present invention and polyethylene using the same; (¾-series film, The laminated system is excellent in anti-adhesion and slip, and in forming containers, there is no risk of mixing foreign matter into the contents, and the appearance of the film is also excellent. Therefore, it is more suitable for filling high-calorie infusions, infusions for peritoneal dialysis (CAPD), etc. Medical bags or food containers such as film bags, blow-molded bags, blow-molded bottles, etc., their packaging bodies, filled with high-calorie infusions, abdominal Film bags for contents such as infusion for dialysis (CAPD), container packages for packaging medical containers such as blow-molded bags, and blow-molded bottles, etc. In the present invention, lubricants and anti-blocking agents are not substantially used. Additives' without the risk of contaminating the contents of the container, such as their exudation, are extremely hygienic. -34-