TW201114593A - Multilayer film and pressure-sensitive adhesive tape - Google Patents

Multilayer film and pressure-sensitive adhesive tape Download PDF

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TW201114593A
TW201114593A TW99120780A TW99120780A TW201114593A TW 201114593 A TW201114593 A TW 201114593A TW 99120780 A TW99120780 A TW 99120780A TW 99120780 A TW99120780 A TW 99120780A TW 201114593 A TW201114593 A TW 201114593A
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Taiwan
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surface layer
laminated film
polyethylene
thickness
layer
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TW99120780A
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Chinese (zh)
Inventor
Shinsuke Ikishima
Ikkou Hanaki
Shou Uchida
Kouhei Takeda
Keiji Hayashi
Kooki Ooyama
Naoto Hayashi
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Nitto Denko Corp
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Priority claimed from JP2010067739A external-priority patent/JP5412347B2/en
Priority claimed from JP2010067738A external-priority patent/JP5412346B2/en
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Publication of TW201114593A publication Critical patent/TW201114593A/en

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Abstract

Provided is a laminated film and a pressure-sensitive adhesive tape in each of which a difference between an image clarity in a lengthwise direction and an image clarity in a widthwise direction is small and hence the distortion of transmitted light is small, and desired mechanical properties are substantially free of reduction. The laminated film of the present invention is a laminated film including a base material layer, and a surface layer, in which the base material layer contains a thermoplastic resin, and the absolute value of a difference between an image clarity in the lengthwise direction of the laminated film and an image clarity in the widthwise direction of the laminated film is 10% or less.

Description

201114593 六、發明說明： 【發明所屬之技術領域】 °更具體而言，係關於長度 圖像清晰度之差較小的積 本發明係關於積層膜和黏著帶 方向的圖像清晰度與寬度方向的 層膜和黏著帶。 【先前技術】 一般而言，膜和㈣帶係難絲合其目的（例如外 整）的霧度值和表面粗糙度。作為露 〇〇 作為務度值和表面粗糙度的調 方法，已知τ字模擠出接觸輥成縣，亦即，使從 模擠出的熔融樹脂與具有凹凸圖案的金屬輕 凸圖案轉印職表面⑽面）嫩⑽，日本= 特開2购咖號公報、特開2__149639號公報）。 但是，於T字模擠出接觸輕成形法中， 开;_脂的冷卻不足而產生炫融樹脂捲附於金丁 ： 側的加工不良問題’或者產生金屬報的凹凸圖案不能充分地 轉印至樹脂上的問題。 小此充刀地 另外，在τ字模擠出接觸輥成形法卜為了改盖膜的剝 離性’一般係在接觸㈣橡膠面上亦實施凹凸加卫，該凹凸 Γ:=ΓΓ成影響，因此，有難以得到具有所需霧度 值（特別疋中、低霧度值）的膜的問題。 如作二!模擠出軸成形法以外的膜成形法，可舉例 子模氣刀成形法或吹塑空冷成形法等。但是，亡此方 099120780 201114593 =:脂的炫融時至冷卻固化時為止的流動變形而在 膜表面形成凹凸，因此難以在膜表面形成精巧的凹凸。 ^冷成形時，亦嘗試了藉由使用兩種成分以上的難以相溶 的祕脂作為臈形成樹 情霖片信" 島的相分離構造以 β 疋，在控侧整體的海島構造而調整霧度值 =表面粗錢時’需要俩與之相應的膜厚度，因此，膜的 薄膜化比#χ困難。另外’需要根據所需的霧度值和表面粗糖 度對膜形成中所使用的材料組成進行適當調整。結果，隨著 霧度值和表面粗糙度的調整，難體的機械物性發生較大變 動。因此，彳艮難分別獨立地對膜整體的機械物性及膜的霧度 值和表面粗糙度進行調整。 膜及黏著帶-般係藉由使成膜材料急劇且顯著地伸長變 形而成形。藉由伸長變形而成形的膜容易在長度方向與寬度 方向之間產生物性差。尤其S光的穿透特性容易受到伸長變 形的影響，藉由伸長變形而成形的膜容易產生長度方向和寬 度方向之間的圖像清晰度差。具有此種圖像清晰度差的膜， 會使穿透光產生畸變’因此，例如在作為賴較用時，難 以隔著保護膜進行被黏物的外觀檢查。 上述圖像清晰度差取決於成膜材料和成膜條件。因此，難 以同時兼顧到減小上述圖像清晰度差與表現出膜整體所要 求的機械物性。 【發明内容】 099120780 4 201114593 (發明所欲解決之問題） 本發明係為了解決上述現有問題而完成者，其目的在於提 供長度方向的圖像清晰度與寬度方向的圖像清晰度之差 小，而穿透光的畸變少，且所需的機械物性實質上不降低的 積層膜和黏著帶。 (解決問題之手段） 本發明的積層膜係具有基材層和表面層者，其中，該基材 層包含熱可塑性樹脂，該積層膜的長度方向的圖像清晰度與 該積層膜的寬度方向的圖像清晰度之差的絕對值為10%以 下。 在較佳實施形態中，本發明的積層膜的長度方向的圖像清 晰度為20%以下，寬度方向的圖像清晰度為20%以下。 在較佳實施形態中，本發明的積層膜的霧度值為 30%〜80%。 在較佳實施形態中，上述表面層的算術平均表面粗糙度 Ra 為 0.5μπι〜2.0μηι。 在較佳實施形態中，上述表面層的厚度為2μηι〜ΙΟμιη。 在較佳實施形態中，上述表面層在示差掃描熱量測定中具 有兩點以上的熔融溫度Tm。 在較佳實施形態中，上述表面層包含聚乙烯和乙烯-醋酸 乙烯酯共聚物。 在更佳的實施形態中，上述聚乙烯與上述乙烯-醋酸乙烯 099120780 5 201114593 酯共聚物的重量比為聚乙烯：乙烯-醋酸乙烯共聚物 =20:80-80:20。 在更佳的實施形態中，上述乙稀-醋酸乙烯醋共聚物中來 自醋酸乙烯酯的構造單位的含量比例為10重量％以上。 在更佳的實施形態中，上述聚乙烯的熔融流動速率為 8g/10分鐘〜100g/10分鐘。 在更佳的實施形態中，上述乙烯-醋酸乙烯酯共聚物的熔 融流動速率為0.1g/10分鐘〜7g/10分鐘。 在較佳實施形態中，上述表面層包含聚乙烯及丙烯系聚合 物。 在更佳的實施形態中，上述聚乙烯與上述丙烯系聚合物的 重量比為聚乙烯：丙烯系聚合物= 10:90〜90:10。 在更佳的實施形態中，上述聚乙烯的熔融流動速率為 8g/10分鐘〜100g/10分鐘。 在更佳的實施形態中，上述丙烯系聚合物的熔融流動速率 為0.1g/10分鐘〜7g/10分鐘。 根據本發明的另一方面，提供一種黏著帶。該黏著帶係在 上述積層膜的單側具有黏著劑層。 在較佳實施形態中，上述黏著帶的長度方向的圖像清晰度 與寬度方向的圖像清晰度之差的絕對值為10%以下。 在較佳實施形態中，上述黏著帶的長度方向的圖像清晰度 為20%以下，寬度方向的圖像清晰度為20%以下。 099120780 6 201114593 在較佳實施形態中，上述黏著帶的霧度值為30%〜80%。 在較佳實施形態中，上述表面層含有長鏈烧基系剝離劑。 (發明效果） 根據本發明·，藉由具有含特定樹脂的表面層，可以得到長 度方向的圖像清晰度與寬度方向的圖像清晰度之差較小而 穿透光的畸變少的積層膜和黏著帶。另外，本發明的積層膜 和黏著帶中的表面層非常薄，因此可以在實質上不降低積層 膜或黏著帶整體所要求的機械物性的情況下，減小長度方向 的圖像清晰度與寬度方向的圖像清晰度之差。另外，本發明 的積層膜和黏著帶的生產率優良，因此可以廉價地製得。 【實施方式】 A.積層膜 本發明的積層膜係具有基材層和表面層。圖1為本發明的 較佳實施形態的積層膜的示意剖面圖。積層膜10具有基材 層1與配置在基材層1的單側或兩側（圖示例中為單側）上 的表面層2。本發明的積層膜根據需要亦可以具有任意適當 的其它層（未圖示）。其它層除了表面層2的未配置基材層 1的一側以外，可以設置在任意的位置。 本發明的積層膜的厚度可以根據用途設定為任意的適當 厚度。較佳ΙΟμιη〜200μηι，更佳ΙΟμιη〜1 80μιη，再更佳 12μπι〜170μηι。 本發明的積層膜中，該積層膜的長度方向的圖像清晰度與 099120780 7 201114593 該積層膜的寬度方向的圖像清晰度之差的絕對值為i 0 %以 下’較佳為8%以下’更佳為5%以下。本發明的積層膜中， 若該積層膜的長度方向的圖像清晰度與該積層膜的寬度方 向的圖像清晰度之差的絕對值在此種範圍内，則可以減少透 過積層膜的光的畸變。結果’例如在將本發明的積層膜作為 保護膜使用、並隔著該積層膜對貼合了該積層骐的被黏物進 行外觀檢查時，可以容易且有效地檢測出被黏物的缺陷。另 外，將本發明的積層膜用於要求外觀設計性的用途時，可以 表現優良的外觀設計。另外’本說明書中，「長度方向」於 指膜成形時的膜搬送方向，「寬度方向」係指與上述長度方 向正交的方向。另外’本說明書中，「長度方向的圖像清晰 度」係指測定圖像清晰度時使用之光梳的穿透部分的線方向 與膜的長度方向平行而進行測定時的圖像清晰度，「寬度方 向的圖像清晰度」係指上述光梳的穿透部分的線方向與膜的 長度方向正交而進行測定時的圖像清晰度。圖像清晰度可以 藉由JISK7105規定的方法來測定。 本發明的積層膜的長度方向的圖像清晰度較佳為2〇%以 下更佳15%以下，再更佳以下，特佳8%以下，最佳 4%〜8%。本發明的積層膜的寬度方向的圖像清晰度較佳為 20/〇以下，更佳15%以下，再更佳以下，特佳以下， 最佳4%〜8〇/0。本發明的積層膜中，該積層膜的長度方向的 圖像清晰度和該積層膜的寬度方向的圖像清晰度大於2 0 % 099120780 201114593 時’例如在將本發明的積層膜作為保護膜使用、並且隔著該 積層膜對貼合了該積層膜的被黏物進行外觀檢查時，即使是 並非由被黏物引起的缺陷（例如，積層膜中的缺陷、貼合積 層膜時所混入的異物）亦可容易地檢測到，而有使原本應檢 測出之被黏物缺陷的檢查效率降低之虞。 本發明的積層膜的霧度值較佳為30〇/〇〜80%，更佳 35%〜75%。積層膜的霧度值若在此種範圍内’則該積層膜 具有適合保護膜用途和外觀調整用途的外觀。積層膜的霧度 值小於30%時，有得不到上述所需的圖像清晰度之虞。霧度 值可以藉由JISK7136 (2000)規定的方法來測定。 A-1.基材層 上述基材層的厚度可以根據用途而採用任意的適當厚 度。上述基材層的厚度較佳為1〇μιη〜15〇μηι，更佳 20μηι〜ΙΟΟμιη。 上述基材層的霧度值較佳為1%〜8〇。/〇,更佳1〇%〜6〇〇/〇。 基材層的霧度值若在此種範圍内，則可以得到具有適合保護 膜用途和外觀調整料的外觀_層膜。基材層的霧度值小 於30%時’則有;^不到具有上述所需圖像清晰度的積層膜之 虞。 上述基材層包含熱可塑性樹脂。作為上述熱可塑性樹脂， 只要可以藉由㈣擠出進行膜成形，則可以採用任意適當的 熱可塑性樹脂。作為上述熱可塑性樹脂，可舉例如：丙稀系 099120780 201114593 聚合物、聚乙烯、烯烴系熱可塑性彈性體（TPO)等聚烯烴 樹脂及其改質物；α-烯烴與乙烯基化合物（例如，醋酸乙烯 酯、（曱基）丙烯酸酯）的共聚物；聚醯胺；聚酯；聚碳酸 酯；聚胺基甲酸酯；聚氣乙烯；等。作為丙烯系聚合物，可 以列舉丙烯均聚物、嵌段聚丙烯、無規聚丙烯等。 使用丙烯均聚物作為上述熱可塑性樹脂時，該丙烯均聚物 的構造可以是同排、雜排、對排的任意一種。 使用聚乙烯作為上述熱可塑性樹脂時，該聚乙烯可為低密 度聚乙烯、中密度聚乙烯、高密度聚乙烯的任意一種。 上述基材層中，上述熱可塑性樹脂可以單獨使用，亦可併 用兩種以上。組合使用的形式包含摻雜與共聚合。 上述熱可塑性樹脂可以使用市售品。作為市售品的熱可塑 性樹脂的具體例，可以列舉SunAllomer公司製造的商品名 「PF380A」（嵌段聚丙烯）等。 上述基材層根據需要可以含有任意適當的添加劑。作為基 材層中可以含有的添加劑，可舉例如：紫外線吸收劑、耐熱 穩定劑、填充劑、滑劑等。上述基材層中含有的添加劑的種 類、數目和量可以根據目的適當設定。 作為上述紫外線吸收劑，可舉例如：苯并三唑系化合物、 二苯基酮系化合物、苯曱酸酯（鹽）系化合物等。只要積層 膜成形時不會滲出，則上述紫外線吸收劑的含量可以採用任 意的適當含量。代表性者係相對於基材層中的熱可塑性樹脂 099120780 10 201114593 100重里份為o.oi重量份〜5重量份。 作為上述耐熱穩定劑，可舉例如：受阻胺系化合物、含聲 系化口物和鼠基丙稀酸醋（鹽）系化合物等。只要積層臈成 έ Θ出，則上述耐熱穩定劑的含量可以採' 當含I。αW的適 代表性者係相對於基材層中的熱可塑性 重里份為0.01重量份〜5重量份。 作^上述填充劑，可舉例如：滑石、氧化鈦、碳酸每、黏 土、雲母、硫酸鋇、晶鬚、氫氧化鎂等無機填充劑。填充劑 的平均粒彳讀佳為Q 1μιη〜1()μΐΏ。填絲的含量係相對於其 材層中的熱可塑性樹脂議重量份較佳為1重量份〜200 : 量份。 Α-2.表面層 上述表面層的厚度較佳為2μιη〜1〇μιη，再更佳 2μηι〜8μιη，特佳2μιη〜5μπι。表面層的厚度小於2μιη時有 難以得到所需的表面粗糙度之虞，且有難以得到霧度值高的 積層膜之虞。表面層的厚度大於⑺卜爪時，表面層的機械物 性對具有該表面層的積層膜或黏著帶整體的機械物性造成 影響，可能導致積層膜或黏著帶整體的機械物性降低，或者 積層膜或黏著帶的操作性變差。 上述表面層的霧度值較佳為3〇%<8〇%，更佳35%〜75〇/〇。 表面層的霧度值若在此種範圍内，則可以得到具有適合保護 膜用途和外觀調整用途的外觀的積層膜。表面層的霧度值小 099120780 11 201114593 於3 0 /〇日寸’則有得不到具有上述所需圖像清晰度的積層膜之 虞。 上述表面層的算術平均表面粗糙度Ra較佳為 0.5μιη〜2.0μιη ’ 更佳 〇 8μηι〜！ 9μιη，再更佳】〇_〜i 9,。 表面層的算術平均表面粗糙度Ra若在此種範圍内，則可以 得到具有適合保護膜用途和外觀調整用途的外觀的積層膜。 上述表面層在能夠顯現本發明的效果的範圍内可以含有 任意的適當樹脂。較佳可列舉以下兩種實施形態。 (實施形態1)上述表面層包含聚乙烯及乙烯_醋酸乙稀醋 共聚物的實施形態。 (實施形態2)上述表面層包含聚乙烯及丙烯系聚合物的 實施形態。 首先，對上述（實施形態1)的情況進行說明。 上述（實施形態υ中，上述表面層包含聚乙缔及乙稀_ 醋酸乙稀酉旨共聚物。上述聚乙烯與乙稀·醋酸乙稀酷共聚物 的重量比可以根據需要的霧度值及/或表面粗輪度採用任音 適當的重量比。該重量比（聚乙稀：乙缚_醋酸乙稀酉旨共聚 較佳為2〇:8〇〜猶〇,再更佳30:70〜80:20，特佳3〇:7〇〜7細。 較佳係上述聚乙烯與上述乙烯-醋酸乙歸醋共聚物顯示不 同的溶融流動速率。上述聚乙稀與乙稀·醋酸乙稀酉旨共聚物 若顯示不同的㈣流動速率，則在論融狀態下面展 成材料進行伸長行為而成形時，熔融流動速率高的樹月旨= 099120780 12 201114593 伸長，熔融流動速率低的樹脂不容易伸長，因此，可以得到 具有由熔融流動速率高的樹脂形成海部分、由熔融流動速率 低的樹脂形成島部分的海島構造的表面層。藉由使表面層具 有耐受伸長應力而伸長變形少的上述島部分，則可以得到長 度方向的圖像清晰度與寬度方向的圖像清晰度之差較小的 積層膜。 上述聚乙烯的熔融流動速率較佳為8g/l0分鐘〜100g/l0分 鐘，再更佳9g/10分鐘〜80g/10分鐘，特佳9g/10分鐘〜50g/10 分鐘，最佳15g/10分鐘〜50g/10分鐘。聚乙烯的熔融流動速 率若在此種範圍内，則可以得到具有適合保護膜用途和外觀 調整用途的霧度值和表面粗糙度的積層膜。聚乙烯的熔融流 動速率小於8g/10分鐘時，聚乙烯與上述乙烯-醋酸乙烯酯 共聚物的熔融流動速率之差變小，積層膜的長度方向的圖像 清晰度與寬度方向的圖像清晰度之差可能變得過大。熔融流 動速率可以藉由JISK7210規定的方法來測定。 上述乙烯-醋酸乙烯酯共聚物的熔融流動速率較佳為 0.1g/10分鐘〜7g/10分鐘，更佳0.2g/10分鐘〜5g/10分鐘， 特佳0.2g/10分鐘〜3g/10分鐘，最佳0.4g/10分鐘〜2.8g/10 分鐘。乙烯-醋酸乙烯酯共聚物的熔融流動速率若在此種範 圍内，則可以得到具有適合保護膜用途和外觀調整用途的霧 度值和表面粗糙度的積層膜。乙烯-醋酸乙烯酯共聚物的熔 融流動速率大於7g/10分鐘時，上述聚乙烯與乙烯-醋酸乙 099120780 13 201114593 烯醋共聚物的溶融流動逮率之差變小，積層膜的長度方向的 圖像清晰度與寬度方向的圖像清晰度之差可能變得過大。 上述聚乙烯和乙參醋酸乙_旨絲物的㈣流動速率若 在上述的範_，财以㈣具有由聚乙_錢部分、由 乙稀-醋酸乙_絲物職島部分的海島構造的表面層。 低黏度樹脂（顯示高炼融流動速率）與高黏度樹脂（顯示 低炫融流動速率）的黏度差較小時’難以得到明確的變形流 動差’無法㈣海島構造，可以得舰且表面粗趟度平 滑_層膜。另-方面，低黏度樹脂（顯示高溶融流動速率） 與:黏度樹脂（顯示低熔融流動速率）的黏度差較大時，可 以得到明確的變形流動差，海島構造明確，可以得到高霧度 且表面粗糖度粗綠的積層膜。藉由所使用的樹脂的黏度差， 可以控制目標霧度值和表面粗縫度。另外，為了得到高霧度 和^造的表面粗链度，較佳係屬於島構造的高黏度樹脂的炫 於作為海構造的低點度樹脂的溶點。其理由在於，伸長 流動時，島構造先冷卻固化，海形錢賴高織樹脂在固 化時尚未冷卻固化，因此形成明確的海島構造。 上述表面層較佳係在示差掃描熱量測定（dsc)中具有兩 ㈣上的_溫度Tm。此種表面層可以藉由使用炼點不同 2聚乙稀及乙烯暖乙_共聚物而❹卜藉由在表面層 ，使用炫點不同的聚乙烯及乙烯-贈酸乙稀酉旨共聚物，可以 利用该炫點差調整積層膜的霧度值及表面粗糙度，從而可以 099120780 201114593 控制積層膜的外觀。更具體而言，在膜成形時，熱溶融後使 其冷卻固化時’高炫點的聚乙烯先固化，然後低炫點的乙稀 -醋酸乙稀醋共聚物固化，因此，該炫點差較大時，可以在 上述表面層中得到明確的海島構造，結果，可以得到霧度值 .彳I面粗&度較大的積層膜。另—方面，該炼點差較小時， 難以得到具有明確海島構造的表面層，因此，可以得到霧度 值#表面粗糙度車父小的積層膜。另外，上述炫融溫度丁爪可 以藉由JISK7121規定的方法來測定。本說明書中，「具有兩 點以上的炫融溫度Tm」係指在DSC曲線中產生兩個以上的 熔融吸熱波♦。 聚乙烯的熔點較佳為loot：〜125°c，更佳1〇5。〇〜125°C， 再更佳110°C〜125t，特佳115t〜120。(：。 乙烯-醋酸乙烯酯共聚物的熔點較佳為5〇〜12〇t，更佳 60°C〜120°C，再更佳70〇C〜12(rc，特佳8〇〇c〜115它，最佳 100°C 〜115°C。 上述聚乙烯的熔點與上述乙烯_醋酸乙烯酯共聚物的熔點 之差較佳為5 C〜65。〇，再更佳10°C〜60°C，特佳15。〇〜50°C。 聚乙稀的炼點與乙稀-醋酸乙稀酯共聚物的炫點之差若在此 種挑圍内，則可以付到具有適合保護膜用途和外觀調整用途 的霧度值和表面粗糙度的積層膜。 本發明的積層膜的霧度值及表面粗糖度可以藉由上述表 面層中的上述聚乙烯與乙烯-醋酸乙烯酯共聚物的相溶性來 099120780 15 201114593 調整。聚乙烯與乙烯-醋酸乙烯酯共聚物的相溶性低時，上 述表面層中可以得到明確的海島構造，因此可以得到霧度值 及表面粗糙度較大的積層膜。另一方面，相溶性高時，難以 得到明確的海島構造，因此，可以得到霧度值及表面粗糙度 較小的積層膜。该相 >谷性例如可以藉由乙稀_醋酸乙烯_共 聚物中來自醋酸乙稀g旨的構造單位的含量比例來調整。 上述乙稀-醋酸乙烯g旨共聚物中來自醋酸乙烯g旨的構造單 位的含量比例較佳為10重量％以上，更佳15重量％以上， 特佳20重量％以上，最佳20重量％〜30重量％。來自醋酸 乙烯酯的構造單位的含量比例若在此種範圍内，則上述乙稀 -醋酸乙烯酯共聚物對上述聚乙烯顯示適當的相溶性，可以 得到具有適合保護膜用途和外觀調整用途的霧度值和表面 粗糙度的積層膜。 上述聚乙烯及乙烯-醋酸乙烯酯共聚物可以使用市售品。 作為市售品的聚乙烯的具體例，可以列舉：東曹公司製造的 商品名「Petrothene 209」、日本聚乙稀公司製造的商品名 「NOVATEC LD LJ803」、「NOVATEC LD LC701」、 「NOVATEC LD LC720」等。作為市售品的乙烯-醋酸乙烯酯 共聚物的具體例，可以列舉三井 DU PONT POLYCHEMICALS 公司製造的「EVAFLEX EV270」等。 上述表面層根據需要可以含有任意適當的添加劑。作為表 面層中可以含有的添加劑，可以使用例如A-1項中說明過的 099120780 16 201114593 添加劑。 然後，對上述（實施形態2)的情況進行說明。 上述(實施形態2)中，上述表面層包含聚乙烯及丙烯系聚 合物。上述聚乙烯與丙烯系聚合物的重量比可以根據需要的 霧度值及/或表面粗糙度採用任意適當的重量比。該重量比 (聚乙烯：丙烯系聚合物）較佳為1〇:9〇〜9〇:1〇，更佳 20:80〜80:20 ’ 特佳 30:70〜70:30。 較佳係上述聚乙烯與上述丙烯系聚合物顯示不同的熔融 流動速率。上述聚乙烯與丙烯系聚合物若顯示不同的炫融= 動速率’則在熱溶融狀態下使表面層形成材料進行伸長行為 而成形時’祕流動速率高的樹脂容㈣長嘴融流動速率 低的樹脂不容易伸長，因此，可以得到具有由熔融流動速率 高的樹脂形成海部分、⑽融流動速率低的樹脂形成島部分 的海島構造的表面層。藉由使表面層具树受伸長應力而伸 ，變形少的上述島部分，可以得到長度方向的圖像清晰度與 寬度方向的圖像清晰度之差小的積層臈。 上述聚乙稀的溶融流動速率較佳為柳分鐘〜馳/1〇分 在里’再更佳9g/10分鐘〜8〇g/1〇分鐘，特佳％則分鐘〜卿ι〇 分鐘，最佳分鐘〜5〇g/1〇分鐘。聚乙稀的溶融流動速 率若在此種範則可以得到具有適合保護膜㈣和外觀 5周整用途的值和表面粗糙度的積層膜。聚乙烯的炫融流 動速率低於8g/1〇分鐘時，聚乙埽與上述丙烯系聚合物的溶 099120780 17 201114593 融流動速率之差變小，積層膜的長度方向的圖像清晰度與寬 度方向的圖像清晰度之差可能變得過大。熔融流動速率可以 藉由JISK7210規定的方法來測定。 上述丙烯系聚合物的熔融流動速率較佳為0.1g/10分鐘 〜7g/10分鐘，更佳0.2g/10分鐘〜5g/10分鐘，特佳0.2g/10 分鐘〜3g/10分鐘，最佳0.4g/10分鐘〜2.8g/10分鐘。丙烯系 聚合物的溶融流動速率若在此種範圍内，則可以得到具有適 合保護膜用途和外觀調整用途的霧度值和表面粗糙度的積 層膜。丙烯系聚合物的熔融流動速率大於7g/10分鐘時，上 述聚乙烯與丙烯系聚合物的熔融流動速率之差變小，積層膜 的長度方向的圖像清晰度與寬度方向的圖像清晰度之差可 能變得過大。 上述聚乙烯和丙烯系聚合物的熔融流動速率若在上述的 範圍内，則可以得到具有由聚乙烯形成海部分、由丙烯系聚 合物形成島部分的海島構造的表面層。 低黏度樹脂（顯示高熔融流動速率）與高黏度樹脂（顯示低 熔融流動速率）的黏度差較小時，難以得到明確的變形流動 差，無法得到海島構造，可以得到低霧度且表面粗糙度光滑 的積層膜。另一方面，低黏度樹脂（顯示高熔融流動速率）與 高黏度樹脂（顯示低熔融流動速率）的黏度差較大時，可以得 到明確的變形流動差，海島構造明確，可以得到高霧度且表 面粗糙度粗糙的積層膜。藉由所使用的樹脂的黏度差，可以 099120780 18 201114593 控制目標霧度值或表面粗糙度H為了得到高霧度與粗 趟的表面粗糙度，較佳係屬於島構造的高黏度樹脂的溶點高 於屬於海構造的低黏度樹脂的熔點。其理由在於，伸長流動 時’島構造先冷卻财b，海形成樹脂的高黏度樹脂在固化時 尚未冷卻固化，因此形成明確的海島構造。因此，在形成高 霧度與粗糙的表面粗糙度方面，較佳係使用丙烯系聚合物等 作為島構造的局黏度樹脂，較佳係使用各種聚乙稀等低炼點 树脂作為海構造的低黏度樹脂。 上述表面層較佳係在示差掃描熱量測定（DSC)中具有兩 點以上的㈣溫度Tm。此種表面層可以藉由使用熔點不同 的聚乙烯和丙烯系聚合物而得到。藉由在表面層中使用溶點 不同的聚乙#及丙烯系聚合物，可以利用該㈣差調整積層 膜的務度值及表面粗糖度，從而可以控制積層膜的外觀。更 具體而言，在臈成形時，熱熔融後使其冷卻固化時，高熔點 的丙烯系聚合物先固化，紐低溶點的聚乙稀固化，因此， «亥炼點差較大時’可以在上述表面層中得到明轉的海島構 造’結果’可以得到霧度值與表面粗链度較大的積層膜。另 一方面，該熔點差較小時，難以得到具有明確海島構造的表 面層，因此，可以得到霧度值與表面粗糙度小的積層膜。另 外，上述熔融溫度Tm可以藉由JISK7121規定的方法來測 疋。本說明書中’「具有兩點以上的熔融溫度Tm」係指在 DSC曲線中產生兩個以上的熔融吸熱波峰。 099120780 19 201114593 聚乙烯的熔點較佳為1〇〇。〇〜】 ^ c ’ 更佳 105°C〜125〇C， 再更佳ll〇°C〜125°C，特佳Un：〜l2(rt。 125°C〜200°C，更佳 特佳 125 C 〜165。(3， 丙烯系聚合物的熔點較佳為 125°C〜180〇C ’ 再更佳 125°C〜l7(rc 最佳 130°C〜165°C。 上述聚乙烯祕點與上述，系聚合物的㈣之差較佳 為心饥’再更佳贼貴’特佳饥〜^聚乙烯 的熔點與㈣«合物㈣點之差若在此種範_，則可以 得到具有適合賴㈣途和外觀難料的霧度值和表面 粗糙度的積層膜。 本發明的積層膜的霧度值鱼矣二， 一、衣面粗糙度可以藉由上述表 面層中的上述聚乙烯與丙烯系平 、^合物的相溶性來調整。聚乙 稀與丙烯系聚合物的相溶性較#* 他時’上述表面層中可以得到 明確的海島構造’因此可以得到霧度值與表面祕度較大的 積層膜。另-方面，相溶性高時，難以得到明確的海造， 因此’可以得到霧度值與表面_度小的積層膜。 上述聚乙稀與丙烯系聚合物可以使用市售品。 作為市售品的聚乙烯的具體例，可以列舉：東曹公司製造 的商品名「PetrotheneSO^、日本聚乙烯公司製造的商品名 「NOVATEC LD LJ803」、「NOVATEC LD LC701」、 「NOVATECLDLC720」等。作為市售品的丙烯系聚合物的 具體例’可以列舉日本聚丙烯股份有限公司製造的商品名 099120780 20 201114593 「NOVATEC PP EG8」等。 上述表面層根據需要可以含有任意適當的添加劑。作為表 面層中可以含有的添加劑，可以使用例如A-1項中說明過的 添加劑。 A-3.其它層 本發明的積層膜根據需要亦可具有任意適當的其它層（未 圖示）。其它層係除了表面層的未配置基材層的一側以外， 可以設置在任意位置。 上述其它層的厚度較佳為2μιη〜12μιη，更佳5μηι〜ΙΟμιη。 上述其它層的霧度值可以根據本發明的積層膜的霧度值 採用任意的適當值。 作為上述其它層，可舉例如平滑層。例如在上述積層膜於 基材層的單側上具有表面層的情況，平滑層可以配置在基材 層的未配置表面層的一側使用。 作為構成上述平滑層的材料，可以採用任意適當的材料。 作為構成平滑層的材料，可以採用例如：聚乙烯、聚丙烯、 ΤΡΟ等聚烯烴樹脂。具體可舉例如低密度至高密度的各種 聚乙烯、同排、雜排、對排的各種聚丙烯等各種熱可塑性樹 脂。另外，不限於聚烯烴樹脂，也可以採用以α-烯烴的改質 物、α-烯烴與醋酸乙烯酯或曱基丙烯酸酯等各種乙烯基化合 物的共聚物、聚醯胺、聚S旨、聚碳酸S旨、聚胺基甲酸S旨、聚 氯乙烯等為主成分的熱可塑性樹脂。這些材料可以單獨使 099120780 21 201114593 用’亦可併用兩種以上。 A-4·積層臈的形成方法 上述積層臈可以藉由任意適當 可以列舉將上述基材層、上述表面声盘成:仔到。代表性者 層進行共擠出的方本據需要採用的其它 适订/、私出的方法。共擠出法可以對各 使用擠出機和絲出關，根據吹錢、模進分別 料其它料料，可狗物：祕進= 壓延成形法分別形成的美姑禺本=a d將糟由 它層進行貼合的=表面層與根據需要採用的其 B.黏著帶 本發明_著帶係具有本發”積層膜與配置在該積層 膜的單側的黏著劑層。圖2係本發明的較佳實施形態的崎 ㈣不意剖面圖。黏著帶100具有積層膜U)與配置在積層 膜1〇的未配置表面層2的一側的接黏劑層2〇。構成本發明 的黏著帶的積層膜10為上述說明過的本發明的積層膜，具 有A 1員中說明過的基材層waj項中說明過的表面層2。 本發明的黏著帶中使用的表面層較佳還包含長鏈炫基系 剝離劑。表面層若含有長賴基系獅劑，則可以防止例如 以卷形態保存等黏著帶相互層疊的狀態下的表面層與黏著 劑層的黏附。另外，表面層不需要用隔片層覆蓋，因此，可 以容易地得到具有所需霧度值和表面粗糙度的黏著帶。 上述長鏈烷基系剝離劑包含長鏈烷基系高分子。長鏈烷基 099120780 22 201114593 系咼分子可以藉由在任意適當的加熱溶劑中 文、有反應把 基的高分子與具有能夠與該反應性基反應之p 〜 的化合 進行反應來得到。該反應時，根據需要可以使 1之用觸媒。作 觸媒，可舉例如錫化合物或三級胺等。 句 作為上述反應性基’可舉例如：經基、胺夷、 緩基、jl丨貝丁 烯二酸酐基等。作為具有該反應性基的高分子， 可以列舉· 乙烯-乙烯醇共聚物、聚乙烯醇、聚乙烯亞胺、取 . AK乙烯胺、 本乙坤-順丁稀·一酸針共聚物等。其中，較佳為, 埽-乙烯醇 共聚物。另外’乙烯-乙烯醇共聚物亦包含乙燁 ^ 0曰酉文乙歸酯 共聚物的部分皂化物在内的概念。聚乙烯醇亦包含聚 烯酯的部分皂化物在内的概念。 上述炫基的碳原子數較佳為8個〜30個，更# , 尺1土 12個〜22 個。上述烧基的碳原子數若在此種範圍内，則可以得到I有 優良剝離性的表面層。作為此種烧基的具體例，可以歹彳舉$ 桂基、硬脂基、山荼基等。作為具有此種院基的化合物（亦 即具有能夠與上述反應性基反應的烷基的化合物），可以列 舉：辛基異氰酸酯、癸基異氰酸酯、十二烷基異氰酸醋、十 八烷基異氰酸酯等異氰酸酯；醯氯、胺、醇等。其中，較佳 為異氰酸酯。 上述長鏈炫基系高分子的重量平均分子量較佳為 10000〜1000000,更佳20000〜1000000。長鏈烷基系高分子 的重量平均分子量若在此種範圍内’則可以得到具有優良剝 099120780 23 201114593 離性的表面層。 上述長鏈烷基系剝離劑係在對積層膜或黏著帶進行共擠 出時捏合到表面層中。上述表面層中的長鏈烷基系剝離劑的 含量比例較佳為1重量％〜5〇重量％，更佳2重量％〜3〇重量 /〇 ’特佳5重量％〜20重量％。含量比例低於1重量％時，有 無法得到長鏈燒基系剝離劑之添加效果之虞。含量比例超過 5〇重量％時’可能產生滲出物。 本發明的黏著帶的厚度可以根據用途設定為任意的適當 厚度。代表性者為Μμηι〜45〇μιη。 本發明的黏著帶的長度方向的圖像清晰度較佳為20%以 卜，更佳15%以下’再更佳1〇%以下，特佳8%以下，最佳 4/〇〜8/〇。本發明的黏著帶的寬度方向的圖像清晰度較佳為 2〇%以下’再更佳10%以下，特佳8%以下，最佳4%〜8%。 本發明的黏著帶中，該黏著帶的長度方向的圖像清晰度與該 黏著帶的寬度方向的輯清晰度大於2 Q %時，例如，在將^ 發_黏著帶作為保護膜使用、並隔著該黏著帶對貼合有該 著帶的被黏物進仃外觀檢查時，即使是並非由被黏物弓丨起 的缺陷(例如，黏㈣中的缺陷、貼合黏著帶時混入的異物) 11 '谷易地k測f’j’而有降低本來應該檢測出之被黏物缺 陷的檢查效率降低之虞。具有此《像清晰度的黏著帶，可 以错由使該黏著帶具有本發日㈣表面層而得到。 本七㈣崎帶巾’該料帶的長度方向的圖像清晰度與 099120780 24 201114593 該。 黏著帶的寬度方向的圖像清晰度之差的絕對值較佳為 ο。/下，更佳8%以下，再更佳5%以下。本發明的黏著帶 黏著帶的長度方向的圖像清晰度與該黏著帶的寬度方 向的圖像β晰度之差的絕對值若在此種範圍内，則可以減少 ^過黏著V的光的畸變^其結果，例如，在將本發明的黏著 ▼料料膜使用、並且隔著難著帶對貼合有該黏著帶的 被黏物進行外觀檢查時，相以且有效驗測出被黏物的 、。另外將本發明的帶帛於要求外觀設計性的用途 L可以表現優良的外觀設計。具有此種圖像清晰度差的黏 著Τ ’可以藉由使該黏著帶具有本發明的表面層而得到。 本發明的黏著帶的霧度值較佳為30%〜80%，更佳 75/°黏著帶的霧度值若在此種範圍内，則該黏著帶 具有適合保護膜用途和外觀調整用途的外觀。黏著帶的霧度 值小於3G%時’有無法得到上述所需的圖像清晰度之虞。具 有此種務度值的1έ著帶’可以藉由使該黏著帶具有本發明的 表面層而得到。 Β-1.黏者劑層 上述黏著劑層的厚度較佳為Ιμπι〜300μιη，更佳 4μιη〜100_，特佳 5阿〜5〇μιη。 上述黏著劑層的霧度值較佳為1〇/〇〜80%，更佳1〇〇/0〜6〇〇/〇。 黏著』層的務度值若在此種範圍内，則可以得到具有適合保 護膜用途和外觀調整用途的外觀的黏著帶。黏著劑層的霧度 099120780 C： 25 201114593 值小於1%時，有無法得到具有上述所需圖像清晰度的黏著 帶之虞。 構成上述黏著劑層的黏著劑，可以採用任意適當的黏著 劑。作為上述黏著劑，可舉例如：橡膠系黏著劑、丙烯酸系 黏著劑、聚矽氧系黏著劑等。 作為上述黏著劑，也可以使用熱可塑性黏著劑。作為構成 熱可塑性黏著劑的材料，例如，作為黏著劑材料，可以列舉 任意適當的苯乙烯系嵌段共聚物、丙烯酸系熱可塑性樹脂 等。 作為上述苯乙烯系嵌段共聚物的具體例，可以列舉：苯乙 烯-乙烯-丁烯共聚物（SEB)等苯乙烯系AB型二嵌段共聚 物；苯乙烯-丁二烯-苯乙烯共聚物（SBS)、SBS的氳化物（苯 乙烯-乙烯-丁烯-苯乙烯共聚物（SEBS))、苯乙烯-異戊二烯 -苯乙烯共聚物（SIS)、SIS的氫化物（苯乙烯-乙烯-丙烯-苯乙烯共聚物（SEPS))、苯乙烯-異丁烯-苯乙烯共聚物 (SIBS)等苯乙烯系ΑΒΑ型三嵌段共聚物；苯乙烯-丁二烯-苯乙烯-丁二烯（SBSB)等苯乙烯系ΑΒΑΒ型四嵌段共聚 物；苯乙烯-丁二烯-苯乙烯-丁二烯-苯乙烯（SBSBS)等苯 乙烯系ABABA型五嵌段共聚物；具有在此以上的ΑΒ重複 單元的苯乙烯系多嵌段共聚物；苯乙烯-丁二烯橡膠（SBR) 等苯乙烯系無規共聚物的使乙烯性雙鍵氫化後得到的氫化 物；等。作為市售品，可舉例如：Kraton Polymers公司製 099120780 26 201114593 造的「G1657」（苯乙烯系彈性體）等。上述共聚物可以單 獨使用，亦可併用兩種以上。 上述苯乙烯系嵌段共聚物中的苯乙烯嵌段構造的含量比 例較佳為5重量％〜40重量％，再更佳7重量％〜30重量％ ’ 特佳9重量％〜20重量％。苯乙烯嵌段構造的含量比例小於 - 5重量％時，黏著劑層的凝聚力不足，導致容易產生殘膠。 •苯乙烯嵌段構造的含量比例大於40重量％時，黏著劑層變 硬，有無法對粗糙面得到良好之接黏性之虞。 上述苯乙烯系嵌段共聚物具有乙烯-丁烯嵌段構造時’乙 烯-丁烯嵌段構造中的來自丁烯的構造單位的含量比例較佳 為50重量％以上，再更佳60重量％以上，特佳70重量％以 上，最佳70重量％〜90重量。/〇。來自丁烯的構造單位的含量 比例若在此種範圍内，則可以得到潤濕性和接黏性優良、對 粗糙面亦可良好接黏的黏著劑層。 作為上述丙烯酸系熱可塑性樹脂，可舉例如：聚曱基丙烯 酸曱酯-聚丙烯酸丁酯-聚甲基丙烯酸曱酯共聚物 • (PMMA-PBA-PMMA共聚物）；在聚丙烯酸丁酯上具有羧酸 • 作為官能基的類型的PMMA-含官能基PBA-PMMA共聚 物；等。丙烯酸系熱可塑性樹脂可以使用市售品。作為市售 品的丙稀酸系熱可塑性樹脂的具體例，可以列舉股份有限公 司KANEKA製造的商品名「NABSTAR」、ICURARAY股份 有限公司製造的商品名「LA POLYMER」等。 099120780 27 201114593 八上述黏著綱巾根據需要相含有其他成分。作為其他成 分:可舉例如··烯烴系樹脂；聚魏系樹脂；液態丙稀酸系 :、聚物’聚乙烯亞胺，脂肪酸醯胺;磷酸酯;一般的添加劑; 等。上述黏著劑層中含有的其他成分的種類、數目和量可以 根據目的適當設定。作為上述添加劑，可舉例如：增黏劑； 軟化劑」抗老化劑；受阻胺系光敎劑；紫外線吸收劑，·氧 化約、乳化鎖、二氧化石夕、氧化鋅、氧化鈦等填充劑或顏料； 等。 增黏劑的配合可有效提高接黏力。為了避免由於凝聚力降 低而導致的殘膠問題的產生，增黏劑的配合量可以根據被黏 物適當設定為任意適當的配合量。通f相對於形成黏著劑的 樹脂材料⑽重量份，較佳為〇〜4〇重量份，更佳〇〜3〇重 量份，再更佳0〜1〇重量份。 作為增黏劑，可舉例如：脂肪族系共聚物、芳香族系共聚 物、脂肪族-芳香族系共聚物或月旨環式系共聚物等石油系樹 脂、香豆㈣系樹脂、箱烯系樹脂、㈣齡系樹脂、聚人 2香等松香系樹脂、（烧基）紛系樹脂、二甲苯系樹脂或者 八寻的氫化物等。增黏劑可以單獨使用，亦可併用_以上。 从作為增黏劑，從剝離性、耐候性等觀點考慮，較佳為例如 :川化學工業公司製造的“ARK0N p_125，，等氣化系增黏 d另外，增黏劑也可以使用以與稀烴樹脂或熱可塑性彈性 體的摻雜物形式市售的產品。 099120780 28 201114593 軟化劑的配合可有效提高接黏力。作為軟化劑，可舉例 如：低分子量的二烯系聚合物、聚異丁烯、氫化聚異丁烯、 氫化聚丁二烯或其等的衍生物。作為該衍生物，可以例示例 如：在單末端或兩個末端上具有OH基或c〇〇H基的衍生 物。具體可以列舉：氫化聚丁二烯二醇、氫化聚丁二烯單醇、 氫化聚異戊二稀二醇、氫化聚異戊二稀單醇等。為了進一步 抑制對被黏物的接黏性的提高，較佳為氫化聚丁二烯、氫化 聚異戊二烯等二烯系聚合物的氫化物或烯烴系軟化劑等。具 體可以列舉KURARAY公司製造的「KURAPRENE LIR-200」 等。這些軟化劑可以單獨使用，亦可併用兩種以上。 八軟=劑的分子量可以適#設定為任意的射量。軟化劑的 刀子里過λ!、時’可能導致物f錄著層朝餘物轉移或者不 易剝離（重剝離化）等，另—方面，軟化劑的分子量過大時， t有力提高效果的傾向，，軟化綱數量平均 分子讀佳為邏〜麵⑻，更佳讓㈣_。 在使用軟化劑的情況下，1 量。軟化劑的添加量過多時，在古n二任,备的適當 增加的傾向，因此，相皿“卜暴㈣具有殘膠 份，較佳為4。重量份以下成更， 10重量份以下。相斜你，' 更20重量份以下，再更佳 :形成黏著劑的樹脂材料100重量份， Γ添加量超過4。重量份時，在高溫環境下； 路下殘膠變得顯著。 至外暴 099120780 29 201114593 上述黏著劑層根據需要可以進行單面或雙面的表面處 理。表面處理可舉例如：電暈放電處理、紫外線照射處理、 火焰處理、電漿處理、濺鍍蝕刻處理等。 B-2.黏著帶的製造方法 本發明的黏著帶可以藉由任意適當的製造方法來得到。本 發明的黏著帶的製造方法可舉例如：將構成本發明的積層膜 的上述基材層、上述表面層及上述黏著劑層進行共擠出的方 法（製造方法1);在上述積層膜的未配置上述表面層的一 側熱炫塗佈上述黏著劑的方法（製造方法2 );在上述積層 膜的未配置上述表面層的一側塗佈溶解了黏著劑的有機溶 劑塗佈液或水分散了黏著劑之乳化液的方法（製造方法3) 等。另外，製造方法2和3中的積層膜，可以藉由A-3項中 說明過的方法來得到。 藉由上述製造方法1或2製造黏著帶時，作為構成黏著劑 層的黏著劑，可以較佳使用上述熱可塑性黏著劑。 在上述製造方法1中，上述共擠出的方法可以對基材層形 成材料、表面層形成材料與黏著劑層形成材料分別使用擠出 機和共擠出用模頭，根據吹塑法、T字模法等來進行。 藉由上述製造方法2或3製造黏著帶時，較佳係在塗佈黏 著劑的表面、亦即上述積層膜的未配置上述表面層的一側的 表面實施易接黏處理。作為易接黏處理，可舉例如：電暈放 電處理、ITRO處理（矽氧化焰處理）、錨固塗層處理等。 099120780 30 201114593 藉由上述製造方法3製造黏著帶時，作為構成上述黏著劑 層的黏著劑，可以較佳使用上述橡膠系黏著劑、丙烯酸系黏 著劑或聚矽氧系黏著劑。 藉由上述製造方法3製造黏著帶時，上述有機溶劑可以採 用任意的適當溶劑。作為上述有機溶劑，可舉例如：曱笨、 二曱苯等芳香族烴類溶劑；醋酸乙酯等脂肪族羧酸酯系溶 劑；己烷、庚烷、辛烷等脂肪族烴系溶劑等。上述有機溶劑 可以單獨使用，亦可併用兩種以上。 藉由上述製造方法3製造黏著帶時，有機溶劑塗佈液中可 以含有交聯劑。作為交聯劑，可舉例如：環氧系交聯劑、異 氰酸酯系交聯劑、氮丙啶系交聯劑等。 藉由上述製造方法3製造黏著帶時的塗佈方法，可以採用 任意適當的塗佈方法。作為塗佈方法，可舉例如：使用棒塗 機、凹版塗佈機、旋塗機、輥塗機、刀塗機、點膠器 (applicator )等的方法。 [實施例] 以下，藉由實施例具體說明本發明，但是，本發明不限於 這些實施例。另外，實施例等中的試驗和評價方法如下所述。 (1)圖像清晰度 使用JIS K7105規定的SUGA試驗機公司製：「ICM-1」， 在穿透式、光梳2mm的條件下進行測定。另外，長度方向 的圖像清晰度係使積層膜或黏著帶的長度方向與光梳的穿 099120780 31 201114593 透部分的線方向平行而進行測定。寬度方向的圖像清晰度係 使積層膜或黏著帶的長度方向與光梳的穿透部分的線方向 正交而進行測定。圖像清晰度係藉由圖像清晰度 (%；KM-m)/(M+ni)xl〇〇(M:最高波高，m:最低波高）進行 計算。 (2) 算術平均表面粗綠度Ra 將積層膜或黏著帶貼合到載玻片上後，對於表面層的表面 粗糙度’使用光學輪廓儀NT9100(Veeco公司製），在測量 類型：VSI( infinite scan，無限維掃描）、目標：2.5X、FOV : 1.0X、調製閾值：〇.1〇/。的條件下以n=3進行測定。測定後， 在項目去除（Terms Removal):僅傾斜面（Tilt 〇niy)(平 面擬合（Plane Fit ))、窗 口過遽（Window Filtering ):無（None ) 的條件下進行數據分析，求出异術平均表面粗糙度。 (3) 霧度值 使用霧度計HM-150 (村上色彩技術研究所股份有限公司 製）測定。霧度根據JIS K7136，藉由霧度（％) =Tdm χ 1〇〇 (Td :擴散穿透率、Tt :總光線穿透率）來計算。 [實施例1] 作為表面層形成材料、基材層形成材料與平滑層形成材 料，準備以下的化合物。 表面層形成材料：低密度聚乙烯（東曹股份有限公司製：201114593 VI. Description of the Invention: [Technical Field of the Invention] ° More specifically, the difference in the definition of the length image is small. The present invention relates to the image clarity and width direction of the laminated film and the adhesive tape. Layer film and adhesive tape. [Prior Art] In general, the film and the (4) tape are difficult to combine with the haze value and surface roughness of the purpose (e.g., external). As a method of adjusting the duty value and the surface roughness, it is known that the τ-shaped die-extrusion contact roller is formed into a county, that is, the molten resin extruded from the die and the metal light-convex pattern having the concave-convex pattern are transferred. The surface (10) surface is tender (10), and the Japanese version is disclosed in Japanese Laid-Open Patent Publication No. Hei. No. 2--149639. However, in the T-die extrusion contact light forming method, the cooling of the grease is insufficient, and the cooling resin roll is attached to the gold: the processing defect problem on the side or the concave-convex pattern in which the metal is produced cannot be sufficiently transferred to The problem on the resin. In addition, in the τ-shaped die extrusion contact roll forming method, in order to change the peeling property of the cover film, the concave-convex reinforcement is generally applied to the contact (four) rubber surface, and the unevenness Γ:=ΓΓ influence, therefore, There is a problem that it is difficult to obtain a film having a desired haze value (especially a medium haze value and a low haze value). As the film forming method other than the two-die extrusion-axis forming method, a sub-mold air knife forming method or a blow molding air-cooling forming method can be exemplified. However, this side is 099120780 201114593 =: The flow deformation at the time of cooling and solidification of the fat forms irregularities on the surface of the film, so that it is difficult to form fine irregularities on the surface of the film. ^When cold forming, it is also tried to adjust the island structure of the island by controlling the island structure of the whole side by using the two kinds of hard-to-dissolve secret fats as the 臈 臈 情 情 片 & The haze value = when the surface is rough, 'the film thickness corresponding to the two is required, and therefore, the film is thinner than #χ. Further, it is necessary to appropriately adjust the composition of the material used in film formation in accordance with the desired haze value and surface roughness. As a result, with the adjustment of the haze value and the surface roughness, the mechanical properties of the difficult body largely change. Therefore, it is difficult to independently adjust the mechanical properties of the entire film and the haze value and surface roughness of the film. The film and the adhesive tape are generally formed by causing the film-forming material to be elongated and significantly elongated and deformed. The film formed by elongation deformation tends to have poor physical properties between the longitudinal direction and the width direction. In particular, the penetration characteristics of the S light are easily affected by the elongation deformation, and the film formed by the elongation deformation tends to cause image sharpness difference between the longitudinal direction and the width direction. A film having such a poor image sharpness causes distortion of the transmitted light. Therefore, for example, when it is used as a laminate, it is difficult to inspect the appearance of the adherend through the protective film. The above image sharpness is poor depending on the film forming material and film forming conditions. Therefore, it is difficult to simultaneously reduce the difference in image sharpness and the mechanical properties required to exhibit the film as a whole. SUMMARY OF THE INVENTION 099120780 4 201114593 (Problems to be Solved by the Invention) The present invention has been made to solve the above conventional problems, and an object thereof is to provide a difference in image sharpness in a longitudinal direction and image sharpness in a width direction, The laminated film and the adhesive tape which have less distortion of the transmitted light and which do not substantially reduce the mechanical properties required. (Means for Solving the Problem) The laminated film of the present invention has a substrate layer and a surface layer, wherein the substrate layer contains a thermoplastic resin, and the image clarity in the longitudinal direction of the laminated film and the width direction of the laminated film The absolute value of the difference in image sharpness is 10% or less. In the preferred embodiment, the laminated film of the present invention has an image sharpness in the longitudinal direction of 20% or less and an image sharpness in the width direction of 20% or less. In a preferred embodiment, the laminated film of the present invention has a haze value of 30% to 80%. In a preferred embodiment, the surface layer has an arithmetic mean surface roughness Ra of from 0.5 μm to 2.0 μm. In a preferred embodiment, the surface layer has a thickness of 2 μm to ΙΟμιη. In a preferred embodiment, the surface layer has a melting temperature Tm of two or more points in the differential scanning calorimetry. In a preferred embodiment, the surface layer comprises polyethylene and an ethylene-vinyl acetate copolymer. In a more preferred embodiment, the weight ratio of the polyethylene to the ethylene-vinyl acetate 099120780 5 201114593 ester copolymer is polyethylene: ethylene-vinyl acetate copolymer = 20: 80-80:20. In a more preferred embodiment, the content ratio of the structural unit derived from vinyl acetate in the ethylene-vinyl acetate copolymer is 10% by weight or more. In a more preferred embodiment, the polyethylene has a melt flow rate of from 8 g/10 min to 100 g/10 min. In a more preferred embodiment, the ethylene-vinyl acetate copolymer has a melt flow rate of from 0.1 g/10 min to 7 g/10 min. In a preferred embodiment, the surface layer comprises polyethylene and a propylene polymer. In a more preferred embodiment, the weight ratio of the polyethylene to the propylene polymer is polyethylene: propylene polymer = 10:90 to 90:10. In a more preferred embodiment, the polyethylene has a melt flow rate of from 8 g/10 min to 100 g/10 min. In a more preferred embodiment, the propylene-based polymer has a melt flow rate of from 0.1 g/10 min to 7 g/10 min. According to another aspect of the invention, an adhesive tape is provided. The adhesive tape has an adhesive layer on one side of the laminated film. In a preferred embodiment, the absolute value of the difference between the image sharpness in the longitudinal direction of the adhesive tape and the image sharpness in the width direction is 10% or less. In a preferred embodiment, the image clarity of the adhesive tape in the longitudinal direction is 20% or less, and the image clarity in the width direction is 20% or less. 099120780 6 201114593 In a preferred embodiment, the adhesive tape has a haze value of 30% to 80%. In a preferred embodiment, the surface layer contains a long-chain base-based release agent. (Effect of the Invention) According to the present invention, by providing a surface layer containing a specific resin, it is possible to obtain a laminated film having a small difference in image sharpness in the longitudinal direction and a sharpness in image width in the width direction and less distortion of transmitted light. And adhesive tape. Further, since the surface layer in the laminated film and the adhesive tape of the present invention is very thin, the image sharpness and width in the longitudinal direction can be reduced without substantially reducing the mechanical properties required for the laminated film or the entire adhesive tape. The difference in image sharpness in the direction. Further, since the laminated film and the adhesive tape of the present invention are excellent in productivity, they can be produced at low cost. [Embodiment] A. Laminate film The laminate film of the present invention has a base material layer and a surface layer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a laminated film according to a preferred embodiment of the present invention. The laminated film 10 has a substrate layer 1 and a surface layer 2 disposed on one side or both sides (one side in the illustrated example) of the substrate layer 1. The laminate film of the present invention may have any other suitable layer (not shown) as needed. The other layer may be provided at any position other than the side of the surface layer 2 on which the substrate layer 1 is not disposed. The thickness of the laminated film of the present invention can be set to any appropriate thickness depending on the application. Preferably, ΙΟμιη~200μηι, more preferably ΙΟμιη~1 80μιη, and even better 12μπι~170μηι. In the laminated film of the present invention, the image sharpness in the longitudinal direction of the laminated film and the absolute value of the difference in image sharpness in the width direction of the laminated film of 099120780 7 201114593 are preferably equal to or less than 8%, preferably 8% or less. 'More preferably 5% or less. In the laminated film of the present invention, if the absolute value of the difference between the image sharpness in the longitudinal direction of the laminated film and the image sharpness in the width direction of the laminated film is within such a range, the light transmitted through the laminated film can be reduced. Distortion. As a result, for example, when the laminated film of the present invention is used as a protective film and the adherend to which the laminated crucible is bonded is visually inspected through the laminated film, the defect of the adherend can be easily and efficiently detected. Further, when the laminated film of the present invention is used for applications requiring design, it can exhibit an excellent design. In the present specification, the "longitudinal direction" refers to the film transport direction at the time of forming the film, and the "width direction" means a direction orthogonal to the longitudinal direction. In the present specification, the "image sharpness in the longitudinal direction" refers to the image sharpness when the line direction of the penetrating portion of the optical comb used for measuring the image sharpness is parallel to the longitudinal direction of the film. The "image sharpness in the width direction" refers to the image sharpness when the line direction of the penetrating portion of the optical comb is orthogonal to the longitudinal direction of the film. The image sharpness can be determined by the method specified in JIS K7105. The image clarity of the laminated film of the present invention in the longitudinal direction is preferably 2% or less, more preferably 15% or less, still more preferably 8% or less, and most preferably 4% to 8%. The image clarity of the laminated film of the present invention in the width direction is preferably 20/〇 or less, more preferably 15% or less, still more preferably the following, and particularly preferably 4% to 8 Å/0. In the laminated film of the present invention, the image sharpness in the longitudinal direction of the laminated film and the image sharpness in the width direction of the laminated film are greater than 20% 099120780 201114593 'for example, the laminated film of the present invention is used as a protective film. When the adherend to which the laminated film is bonded is subjected to visual inspection through the laminated film, even if it is not caused by the adherend (for example, a defect in the laminated film or a laminated film) The foreign matter can also be easily detected, and there is a possibility that the inspection efficiency of the adherend defect which should be detected is lowered. The laminated film of the present invention preferably has a haze value of from 30 Å to 80 80%, more preferably from 35% to 75%. When the haze value of the laminated film is within such a range, the laminated film has an appearance suitable for the purpose of protective film use and appearance adjustment. When the haze value of the laminated film is less than 30%, the desired image sharpness cannot be obtained. The haze value can be measured by the method specified in JIS K7136 (2000). A-1. Base material layer The thickness of the above base material layer may be any appropriate thickness depending on the application. The thickness of the substrate layer is preferably from 1 μm to 15 μm, more preferably from 20 μm to ΙΟΟμιη. The substrate layer preferably has a haze value of from 1% to 8%. /〇, better 1〇%~6〇〇/〇. When the haze value of the base material layer is within such a range, an appearance _ layer film having a suitable protective film use and an appearance adjustment material can be obtained. When the haze value of the base material layer is less than 30%, there is a problem that the laminated film having the above-described desired image definition is not obtained. The base material layer contains a thermoplastic resin. As the thermoplastic resin, any suitable thermoplastic resin can be used as long as it can be formed by (4) extrusion. Examples of the thermoplastic resin include a polyolefin resin such as acryl 099120780 201114593 polymer, polyethylene, or olefin-based thermoplastic elastomer (TPO), and a modified product thereof; an α-olefin and a vinyl compound (for example, acetic acid). a copolymer of vinyl ester, (mercapto) acrylate; polyamine; polyester; polycarbonate; polyurethane; polyethylene; Examples of the propylene-based polymer include a propylene homopolymer, a block polypropylene, and a random polypropylene. When a propylene homopolymer is used as the above thermoplastic resin, the structure of the propylene homopolymer may be either one of the same row, the miscellaneous row, or the opposite row. When polyethylene is used as the above thermoplastic resin, the polyethylene may be any of low density polyethylene, medium density polyethylene, and high density polyethylene. In the base material layer, the thermoplastic resin may be used singly or in combination of two or more. The combined form includes doping and copolymerization. A commercially available product can be used for the above thermoplastic resin. Specific examples of the thermoplastic resin which is commercially available include a product name "PF380A" (block polypropylene) manufactured by Sun Allomer Co., Ltd., and the like. The base material layer may contain any appropriate additive as needed. The additive which may be contained in the base layer may, for example, be an ultraviolet absorber, a heat-resistant stabilizer, a filler or a lubricant. The kind, number, and amount of the additives contained in the above substrate layer can be appropriately set depending on the purpose. The ultraviolet absorber may, for example, be a benzotriazole compound, a diphenylketone compound or a benzoate compound. The content of the above ultraviolet absorbing agent may be any appropriate content as long as it does not bleed out when the laminated film is formed. The representative is based on the thermoplastic resin in the base material layer 099120780 10 201114593 100 parts by weight is o. oi parts by weight to 5 parts by weight. Examples of the heat-resistant stabilizer include a hindered amine-based compound, a sound-containing compound, and a murine-acrylic acid (salt)-based compound. The content of the above heat-resistant stabilizer can be measured as "I" as long as the laminate is formed into a crucible. A suitable representative of αW is 0.01 part by weight to 5 parts by weight based on the thermoplasticity in the base material layer. The filler may, for example, be an inorganic filler such as talc, titanium oxide, carbonic acid, clay, mica, barium sulfate, whiskers or magnesium hydroxide. The average particle reading of the filler is preferably Q 1 μηη~1 () μΐΏ. The content of the filler is preferably from 1 part by weight to 200 parts by weight relative to the weight of the thermoplastic resin in the layer. Α-2. Surface layer The thickness of the surface layer is preferably 2 μm to 1 μmηη, more preferably 2 μηι to 8 μιη, and particularly preferably 2 μιη to 5 μπι. When the thickness of the surface layer is less than 2 μm, it is difficult to obtain a desired surface roughness, and it is difficult to obtain a laminate film having a high haze value. When the thickness of the surface layer is greater than (7), the mechanical properties of the surface layer affect the mechanical properties of the laminated film or the adhesive tape having the surface layer, which may result in a decrease in the mechanical properties of the laminated film or the adhesive tape as a whole, or a laminated film or The operability of the adhesive tape is deteriorated. The haze value of the above surface layer is preferably 3〇% <8〇%, more preferably 35%~75〇/〇. When the haze value of the surface layer is within such a range, a laminated film having an appearance suitable for the use of the protective film and the appearance adjustment property can be obtained. The haze value of the surface layer is small. 099120780 11 201114593 The film of the laminated film having the above-mentioned desired image clarity is not obtained at 30°/〇. The arithmetic mean surface roughness Ra of the above surface layer is preferably 0. 5μιη~2. 0μιη ’ Better 〇 8μηι~! 9μιη, even better] 〇_~i 9,. When the arithmetic mean surface roughness Ra of the surface layer is within such a range, a laminated film having an appearance suitable for the use of the protective film and the appearance adjustment can be obtained. The surface layer may contain any appropriate resin within the range in which the effects of the present invention can be exhibited. Preferably, the following two embodiments are exemplified. (Embodiment 1) The surface layer contains an embodiment of polyethylene and ethylene-ethylene acetate vinegar copolymer. (Embodiment 2) The surface layer contains an embodiment of a polyethylene and a propylene polymer. First, the case of the above (Embodiment 1) will be described. In the above embodiment, the surface layer comprises a polyethylene-ethylene and ethylene-ethylene acetate copolymer. The weight ratio of the polyethylene to the ethylene-ethyl acetate copolymer may be according to a desired haze value and / or the surface coarse rotation using the appropriate weight ratio of the sound. The weight ratio (polyethylene: Ethylene - ethyl acetate) is preferably 2 〇: 8 〇 ~ 〇 再, and even better 30: 70 ~ 80:20, especially good 3〇: 7〇~7 fine. It is preferred that the above polyethylene and the above ethylene-acetic acid ethyl vinegar copolymer show different melting flow rates. The above polyethylene and ethylene acetonitrile acetate If the copolymer exhibits a different (IV) flow rate, the material having a high melt flow rate is elongated when the material is stretched under the melt state, and the resin having a low melt flow rate is not easily elongated. Therefore, it is possible to obtain a surface layer having a sea-island structure in which a sea portion is formed of a resin having a high melt flow rate and a island portion is formed by a resin having a low melt flow rate, and the surface layer has the above-described elongation resistance and elongation deformation. Island part Further, a laminated film having a small difference in image sharpness in the longitudinal direction and image sharpness in the width direction can be obtained. The melt flow rate of the polyethylene is preferably from 8 g/l0 min to 100 g/l0 min, more preferably 9g/10 minutes to 80g/10 minutes, particularly preferably 9g/10 minutes to 50g/10 minutes, preferably 15g/10 minutes to 50g/10 minutes. If the melt flow rate of polyethylene is within this range, it can be obtained. A laminate film having a haze value and a surface roughness suitable for protective film use and appearance adjustment use. When the melt flow rate of polyethylene is less than 8 g/10 minutes, the melt flow rate of the polyethylene and the above ethylene-vinyl acetate copolymer The difference is small, and the difference between the image sharpness in the longitudinal direction of the laminated film and the image sharpness in the width direction may become excessive. The melt flow rate can be measured by the method specified in JIS K7210. The above ethylene-vinyl acetate copolymer The melt flow rate is preferably 0. 1g/10 minutes ~ 7g/10 minutes, better 0. 2g/10 minutes ~ 5g/10 minutes, especially good 0. 2g/10 minutes ~ 3g/10 minutes, the best 0. 4g/10 minutes~2. 8g/10 minutes. When the melt flow rate of the ethylene-vinyl acetate copolymer is within such a range, a laminated film having a haze value and a surface roughness suitable for the use of the protective film and the appearance adjustment can be obtained. When the melt flow rate of the ethylene-vinyl acetate copolymer is more than 7 g/10 minutes, the difference between the melt flow rate of the polyethylene and the ethylene-acetic acid ethyl acetate 099120780 13 201114593 is lower, and the longitudinal direction of the laminated film is shown. The difference in image sharpness like sharpness and width may become too large. The (iv) flow rate of the above-mentioned polyethylene and ethyl acetonitrile acetate is in the above-mentioned formula, and (4) has an island formed by the poly-ethylene portion and the island of ethylene-acetic acid Surface layer. Low-viscosity resin (showing high smelting flow rate) and high-viscosity resin (showing low smelting flow rate) have a small difference in viscosity. 'It is difficult to obtain a clear deformation flow difference'. (4) Island structure, the ship can be obtained and the surface roughness is smooth. _ layer film. On the other hand, when the viscosity difference between the low-viscosity resin (showing high melt flow rate) and the viscosity resin (showing low melt flow rate) is large, a clear deformation flow difference can be obtained, the island structure is clear, and high haze can be obtained. A thick brown film of coarse brown on the surface. The target haze value and the surface roughness can be controlled by the difference in viscosity of the resin used. Further, in order to obtain a high haze and a rough surface of the surface, it is preferable to use a high-viscosity resin belonging to the island structure to smear a melting point of a low-point resin as a sea structure. The reason is that the island structure is first cooled and solidified when the flow is extended, and the high-texture resin has not been cooled and solidified at the time of curing, so that a clear island structure is formed. Preferably, the surface layer has a temperature Tm of two (four) in the differential scanning calorimetry (dsc). Such a surface layer can be obtained by using different polyethylene and ethylene-ethylene copolymers in the surface layer, by using different polyethylene and ethylene-ethylene sulphate copolymers in the surface layer. The haze value and the surface roughness of the laminated film can be adjusted by using the dazzle difference, so that the appearance of the laminated film can be controlled by 099120780 201114593. More specifically, when the film is formed, after the hot melt is cooled and solidified, the high-gloss polyethylene is first cured, and then the low-bright ethylene-acetic acid ethylene vinegar copolymer is solidified. When it is large, a clear island structure can be obtained in the above surface layer, and as a result, a haze value can be obtained. 积I face thick & a large laminated film. On the other hand, when the refining difference is small, it is difficult to obtain a surface layer having a clear island structure, and therefore, a laminated film having a haze value of #surface roughness and a small father can be obtained. Further, the above-mentioned swell temperature paws can be measured by the method specified in JIS K7121. In the present specification, "having a melting temperature Tm of two or more points" means that two or more melting endothermic waves ♦ are generated in the DSC curve. The melting point of the polyethylene is preferably loot: ~ 125 ° C, more preferably 1 〇 5. 〇~125°C, and even better 110°C~125t, especially good 115t~120. (: The melting point of the ethylene-vinyl acetate copolymer is preferably 5〇~12〇t, more preferably 60°C~120°C, and even more preferably 70〇C~12(rc, especially good 8〇〇c~ 115, preferably 100 ° C to 115 ° C. The difference between the melting point of the above polyethylene and the melting point of the above ethylene-vinyl acetate copolymer is preferably 5 C to 65. 〇, more preferably 10 ° C to 60 ° C, especially good 15. 〇~50 ° C. The difference between the smelting point of the polyethylene smelting point and the ethylene sulphate copolymer can be paid to the suitable protective film. And a laminate film having a haze value and a surface roughness for the purpose of adjusting the appearance. The haze value and the surface roughness of the laminate film of the present invention may be obtained by the phase of the polyethylene and the ethylene-vinyl acetate copolymer in the surface layer. The solubility is adjusted to 099120780 15 201114593. When the compatibility between the polyethylene and the ethylene-vinyl acetate copolymer is low, a clear sea-island structure can be obtained in the surface layer, and thus a laminated film having a large haze value and a large surface roughness can be obtained. On the other hand, when the compatibility is high, it is difficult to obtain a clear island structure, and therefore, haze can be obtained. A laminated film having a small value and a small surface roughness. The phase > graininess can be adjusted, for example, by the content ratio of the structural unit derived from ethyl acetate in the ethylene-vinyl acetate copolymer. The content ratio of the structural unit derived from vinyl acetate g in the ethylene-g copolymer is preferably 10% by weight or more, more preferably 15% by weight or more, particularly preferably 20% by weight or more, and most preferably 20% by weight to 30% by weight. When the content ratio of the structural unit of vinyl acetate is within such a range, the ethylene-vinyl acetate copolymer exhibits appropriate compatibility with the polyethylene, and a haze having a suitable protective film use and appearance adjustment can be obtained. A laminate film having a value and a surface roughness. A commercially available product can be used as the polyethylene and the ethylene-vinyl acetate copolymer. Specific examples of the commercially available polyethylene include the product name "Petrothene 209" manufactured by Tosoh Corporation. The product name "NOVATEC LD LJ803", "NOVATEC LD LC701", "NOVATEC LD LC720" manufactured by Japan Polyethylene Co., Ltd., etc. As a commercial ethylene-vinyl acetate Specific examples of the copolymer include "EVAFLEX EV270" manufactured by Mitsui DU PONT POLYCHEMICALS Co., Ltd., etc. The surface layer may contain any appropriate additives as needed. As an additive which may be contained in the surface layer, for example, A-1 may be used. The above-mentioned (Embodiment 2) will be described. In the above (Embodiment 2), the surface layer contains polyethylene and a propylene-based polymer. The polyethylene and the propylene-based polymer. The weight ratio can be any suitable weight ratio depending on the desired haze value and/or surface roughness. The weight ratio (polyethylene: propylene-based polymer) is preferably 1 〇: 9 〇 to 9 〇: 1 Torr, more preferably 20: 80 to 80: 20 Å, particularly preferably 30: 70 to 70: 30. Preferably, the polyethylene exhibits a different melt flow rate from the above propylene-based polymer. When the polyethylene and the propylene-based polymer exhibit different swelling rate = dynamic rate, the surface layer forming material is subjected to an elongation behavior in a hot melt state, and the resin having a high flow rate (4) has a long melt flow rate. The resin does not easily elongate, and therefore, a surface layer having an island structure having a sea portion formed by a resin having a high melt flow rate and (10) a resin having a low melt flow rate to form an island portion can be obtained. By forming the island portion with the surface layer subjected to the elongation stress and having little deformation, it is possible to obtain a laminate having a small difference between the image sharpness in the longitudinal direction and the image sharpness in the width direction. The melt flow rate of the above polyethylene is preferably a minute of minute ~ Chi / 1 〇 in the 'more preferably 9g / 10 minutes ~ 8 〇 g / 1 〇 minutes, especially good % is minutes ~ qing ι 〇 minutes, most Good minutes ~ 5 〇 g / 1 〇 minutes. The melt flow rate of polyethylene can be obtained as a laminate film having a value suitable for the protective film (IV) and appearance for 5 weeks and surface roughness. When the flow rate of polyethylene melts is less than 8 g/1 〇 minutes, the difference in melt flow rate between the polyethylene phthalate and the above propylene polymer is 099120780 17 201114593, and the image clarity and width in the longitudinal direction of the laminated film The difference in image sharpness in the direction may become too large. The melt flow rate can be measured by the method specified in JIS K7210. The melt flow rate of the above propylene-based polymer is preferably 0. 1g/10 minutes ~7g/10 minutes, better 0. 2g/10 minutes ~ 5g/10 minutes, especially good 0. 2g/10 minutes ~ 3g/10 minutes, the best 0. 4g/10 minutes~2. 8g/10 minutes. When the melt flow rate of the propylene-based polymer is within such a range, a laminated film having a haze value and a surface roughness suitable for the use of the protective film and the appearance adjustment can be obtained. When the melt flow rate of the propylene-based polymer is more than 7 g/10 minutes, the difference in the melt flow rate between the polyethylene and the propylene-based polymer becomes small, and the image clarity and the image clarity in the width direction of the laminated film are small. The difference may become too large. When the melt flow rate of the polyethylene and the propylene-based polymer is within the above range, a surface layer having a sea-island structure in which a sea portion is formed from polyethylene and an island portion is formed from a propylene-based polymer can be obtained. When the viscosity difference between the low-viscosity resin (showing high melt flow rate) and the high-viscosity resin (showing low melt flow rate) is small, it is difficult to obtain a clear deformation flow difference, and the island structure cannot be obtained, and low haze and surface roughness can be obtained. Smooth laminated film. On the other hand, when the viscosity difference between the low-viscosity resin (showing high melt flow rate) and the high-viscosity resin (showing low melt flow rate) is large, a clear deformation flow difference can be obtained, the island structure is clear, and high haze can be obtained. A laminated film with a rough surface roughness. The target haze value or surface roughness H can be controlled by 099120780 18 201114593 by the difference in viscosity of the resin used. In order to obtain high haze and rough surface roughness, it is preferred to be a melting point of a high viscosity resin belonging to the island structure. Higher than the melting point of low viscosity resins belonging to the sea structure. The reason for this is that the high-viscosity resin of the sea-forming resin is not cooled and solidified at the time of curing when the flow is extended, and a clear island structure is formed. Therefore, in terms of forming high haze and rough surface roughness, it is preferable to use a propylene-based polymer or the like as a local viscosity resin of an island structure, and it is preferable to use various low-point resin such as polyethylene as a low sea structure. Viscosity resin. Preferably, the surface layer has a temperature (T) of two or more points in differential scanning calorimetry (DSC). Such a surface layer can be obtained by using a polyethylene having a different melting point and a propylene-based polymer. By using the polyethylene # and the propylene-based polymer having different melting points in the surface layer, the duty value and the surface roughness of the laminated film can be adjusted by the (four) difference, whereby the appearance of the laminated film can be controlled. More specifically, in the case of forming a crucible, when it is melted and solidified by heat melting, the high-melting point propylene-based polymer is first solidified, and the polyethylene having a low melting point is solidified. Therefore, when «the melting point difference is large' A laminate film having a large haze value and a large surface roughness can be obtained by obtaining a bright island structure "result" in the above surface layer. On the other hand, when the difference in melting point is small, it is difficult to obtain a surface layer having a clear island structure, and therefore, a laminated film having a haze value and a small surface roughness can be obtained. Further, the above melting temperature Tm can be measured by the method specified in JIS K7121. In the present specification, "having a melting temperature Tm of two or more points" means that two or more melting endothermic peaks are generated in the DSC curve. 099120780 19 201114593 The melting point of polyethylene is preferably 1 〇〇. 〇~] ^ c ' Better 105°C~125〇C, then better ll〇°C~125°C, especially good Un:~l2(rt. 125°C~200°C, better special 125 C ~ 165. (3, the melting point of the propylene-based polymer is preferably 125 ° C ~ 180 ° C ' and more preferably 125 ° C ~ l7 (rc is optimal 130 ° C ~ 165 ° C. The above-mentioned polyethylene secret points and In the above, the difference between the (four) of the polymer is better than the difference between the melting point of the heart and the thief, and the difference between the melting point of the polyethylene and the (four) compound (four) points. A laminated film suitable for the haze value and surface roughness of the film and the appearance. The haze value of the laminated film of the present invention is two, and the surface roughness can be obtained by the above polyethylene in the surface layer. The compatibility with the propylene system and the compound is adjusted. The compatibility between the polyethylene and the propylene polymer is better than that of the #*. In the above surface layer, a clear island structure can be obtained, so that the haze value and the surface can be obtained. In addition, when the compatibility is high, it is difficult to obtain a clear sea, so that a laminated film having a haze value and a small surface degree can be obtained. A commercially available product can be used for the polyethylene and the propylene-based polymer. Specific examples of the commercially available polyethylene include the product name "Petrothene SO^ manufactured by Tosoh Corporation, and the product name "NOVATEC LD" manufactured by Nippon Polyethylene Co., Ltd. LJ803", "NOVATEC LD LC701", "NOVATEC LDLC720", etc. As a specific example of the propylene-based polymer which is a commercial product, the product name of the Japanese Polypropylene Co., Ltd. is 099120780 20 201114593 "NOVATEC PP EG8", etc. The surface layer may contain any appropriate additive as needed. As an additive which may be contained in the surface layer, for example, an additive described in the item A-1 may be used. Other Layers The laminated film of the present invention may have any other suitable layer (not shown) as needed. The other layer may be provided at any position other than the side of the surface layer on which the substrate layer is not disposed. The thickness of the other layer is preferably 2 μm to 12 μm, more preferably 5 μm to ΙΟμιη. The haze value of the above other layer may be any appropriate value according to the haze value of the laminated film of the present invention. As the other layer, for example, a smooth layer can be mentioned. For example, in the case where the laminated film has a surface layer on one side of the substrate layer, the smoothing layer may be disposed on the side of the substrate layer on which the surface layer is not disposed. As the material constituting the smoothing layer, any appropriate material can be employed. As the material constituting the smoothing layer, for example, a polyolefin resin such as polyethylene, polypropylene or ruthenium can be used. Specifically, for example, various thermoplastic resins such as low-density to high-density polyethylene, various rows, miscellaneous rows, and various rows of polypropylene may be mentioned. Further, it is not limited to the polyolefin resin, and a modified product of an α-olefin, a copolymer of an α-olefin with various vinyl compounds such as vinyl acetate or decyl acrylate, polyamine, polystyrene, and polycarbonate may be used. It is a thermoplastic resin containing a polyaminocarbamic acid S or a polyvinyl chloride as a main component. These materials can be used alone or in combination of two or more. A-4. Method of Forming the Layered Layer The above-mentioned substrate layer and the above-mentioned surface acoustic disk can be arbitrarily set as appropriate. The representative layer is the other method of co-extrusion that is suitable for use in order to be used. The co-extrusion method can be used for each extruder and silk outlet. According to the money blowing and molding, the other materials can be used separately. The dog material: secret injection = calendering method is formed separately. Its layer is laminated = the surface layer and its B. Adhesive tape The present invention has a laminated film and an adhesive layer disposed on one side of the laminated film. Fig. 2 is a cross-sectional view of a preferred embodiment of the present invention. The adhesive tape 100 has a laminate. The film U) and the adhesive layer 2 disposed on the side of the laminated film 1 which is not provided with the surface layer 2. The laminated film 10 constituting the adhesive tape of the present invention is the laminated film of the present invention described above, and has A The surface layer 2 described in the base layer waj item described in the first member. The surface layer used in the adhesive tape of the present invention preferably further comprises a long chain leuco-based release agent. The agent can prevent adhesion of the surface layer and the adhesive layer in a state in which the adhesive tapes are stacked in a roll form, for example, and the surface layer does not need to be covered with the separator layer, so that it is possible to easily obtain a desired mist. The adhesive tape of the degree and the surface roughness. The long-chain alkyl-based release agent contains a long-chain alkyl polymer. The long-chain alkyl group 099120780 22 201114593 The ruthenium molecule can be reacted by any suitable heating solvent in Chinese. High score It can be obtained by reacting with a compound having p to be reacted with the reactive group. In the case of the reaction, a catalyst for one can be used as needed. Examples of the catalyst include a tin compound or a tertiary amine. The above-mentioned reactive group 'is, for example, a thiol group, an amine group, a slow solution group, a jl mussel butyrate group, etc. Examples of the polymer having the reactive group include an ethylene-vinyl alcohol copolymer and polyethylene. Alcohol, polyethyleneimine, take  AK vinylamine, Benyikun-cis-butylene-acid needle copolymer, etc. Among them, a ruthenium-vinyl alcohol copolymer is preferred. Further, the 'ethylene-vinyl alcohol copolymer also contains a concept of a partial saponified product of a acetamidine copolymer. Polyvinyl alcohol also contains the concept of a partial saponification of a polyolefin. The number of carbon atoms of the above-mentioned glare group is preferably from 8 to 30, more #, and from 1 to 12 of the ruler. When the number of carbon atoms of the above-mentioned base is within such a range, a surface layer having excellent peelability can be obtained. Specific examples of such a base can be exemplified by lauric acid, stearyl group, behenyl group and the like. Examples of the compound having such a hospital base (that is, a compound having an alkyl group reactive with the above reactive group) include octyl isocyanate, mercapto isocyanate, dodecyl isocyanate, and octadecyl group. Isocyanate such as isocyanate; hydrazine chloride, amine, alcohol, and the like. Among them, isocyanate is preferred. The weight average molecular weight of the above long chain ray-based polymer is preferably from 10,000 to 1,000,000, more preferably from 20,000 to 1,000,000. When the weight average molecular weight of the long-chain alkyl polymer is within this range, a surface layer having excellent peelability of 099120780 23 201114593 can be obtained. The long-chain alkyl-based release agent is kneaded into the surface layer when the laminated film or the adhesive tape is coextruded. The content ratio of the long-chain alkyl-based release agent in the surface layer is preferably from 1% by weight to 5% by weight, more preferably from 2% by weight to 3% by weight, and most preferably from 5% by weight to 20% by weight. When the content ratio is less than 1% by weight, the effect of adding a long-chain base-based release agent cannot be obtained. When the content ratio exceeds 5% by weight, exudates may be produced. The thickness of the adhesive tape of the present invention can be set to any appropriate thickness depending on the application. Representative is Μμηι~45〇μιη. The image clarity in the longitudinal direction of the adhesive tape of the present invention is preferably 20%, more preferably 15% or less, and still more preferably 1% or less, particularly preferably 8% or less, and most preferably 4/〇~8/〇 . The image clarity in the width direction of the adhesive tape of the present invention is preferably 2% or less and more preferably 10% or less, particularly preferably 8% or less, and most preferably 4% to 8%. In the adhesive tape of the present invention, when the image clarity of the adhesive tape in the longitudinal direction and the sharpness of the adhesive tape in the width direction are greater than 2%, for example, the adhesive tape is used as a protective film, and When the appearance of the adherend to which the tape is attached is inspected through the adhesive tape, even if it is not caused by the defect of the adherend (for example, a defect in the adhesive (4), it is mixed when the adhesive tape is attached. Foreign matter) 11 'Valley's test f'j' has the effect of reducing the inspection efficiency of the adherend defect that should have been detected. The adhesive tape having such "image clarity" can be obtained by making the adhesive tape have the surface layer of the present day (four). This seven (four) Saki belt towel's image clarity in the length direction of the strip is 099120780 24 201114593. The absolute value of the difference in image sharpness in the width direction of the adhesive tape is preferably ο. / Lower, better 8% or less, and even better 5% or less. If the absolute value of the difference between the image sharpness in the longitudinal direction of the adhesive tape of the present invention and the image β sharpness in the width direction of the adhesive tape is within such a range, the light adhering to V can be reduced. As a result, for example, when the adhesive film of the present invention is used and the appearance of the adherend to which the adhesive tape is attached is examined by a difficult tape, the adhesive is effectively detected. The object's. Further, the use of the present invention for the purpose of designing an appearance L can express an excellent design. The adhesive 具有 having such a poor image definition can be obtained by making the adhesive tape have the surface layer of the present invention. The adhesive tape of the present invention preferably has a haze value of 30% to 80%, and more preferably, if the haze value of the adhesive tape is within such a range, the adhesive tape has a suitable protective film use and appearance adjustment use. Exterior. When the haze value of the adhesive tape is less than 3 G%, there is no possibility of obtaining the image clarity required above. A 1" tape having such a duty value can be obtained by making the adhesive tape have the surface layer of the present invention. Β-1. Adhesive layer The thickness of the above adhesive layer is preferably Ιμπι~300μηη, more preferably 4μιη~100_, and particularly preferably 5A~5〇μιη. The haze value of the above adhesive layer is preferably from 1 〇 / 〇 to 80%, more preferably from 1 〇〇 / 0 to 6 〇〇 / 。. If the service value of the adhesive layer is within such a range, an adhesive tape having an appearance suitable for the use of the protective film and the appearance adjustment can be obtained. Haze of the adhesive layer 099120780 C: 25 201114593 When the value is less than 1%, there is no possibility of obtaining an adhesive tape having the above-described desired image clarity. As the adhesive constituting the above adhesive layer, any appropriate adhesive can be used. Examples of the above-mentioned adhesive include a rubber-based adhesive, an acrylic adhesive, and a polyoxygen-based adhesive. As the above adhesive, a thermoplastic adhesive can also be used. The material constituting the thermoplastic adhesive is, for example, any suitable styrene block copolymer or acrylic thermoplastic resin. Specific examples of the styrene block copolymer include a styrene-based AB-type diblock copolymer such as styrene-ethylene-butene copolymer (SEB); and styrene-butadiene-styrene copolymerization. (SBS), SBS telluride (styrene-ethylene-butylene-styrene copolymer (SEBS)), styrene-isoprene-styrene copolymer (SIS), SIS hydride (styrene) - ethylene-propylene-styrene copolymer (SEPS), styrene-isobutylene-styrene copolymer (SIBS) and other styrene-based triblock copolymers; styrene-butadiene-styrene-butyl a styrene-based tetra-block copolymer such as olefin (SBSB); a styrene-based ABABA-type pentablock copolymer such as styrene-butadiene-styrene-butadiene-styrene (SBSBS); a styrene-based multi-block copolymer of the above-mentioned fluorene repeating unit; a hydride obtained by hydrogenating an ethylenic double bond of a styrene-based random copolymer such as styrene-butadiene rubber (SBR); As a commercial item, for example, "G1657" (styrene-based elastomer) manufactured by Kraton Polymers, Inc., 099120780 26 201114593, etc., may be mentioned. These copolymers may be used singly or in combination of two or more. The content ratio of the styrene block structure in the styrene block copolymer is preferably 5% by weight to 40% by weight, more preferably 7% by weight to 30% by weight, particularly preferably 9% by weight to 20% by weight. When the content ratio of the styrene block structure is less than -5% by weight, the cohesive force of the adhesive layer is insufficient, resulting in occurrence of residual glue. When the content ratio of the styrene block structure is more than 40% by weight, the adhesive layer becomes hard and there is no possibility of obtaining good adhesion to the rough surface. When the styrene block copolymer has an ethylene-butene block structure, the content ratio of the structural unit derived from butene in the ethylene-butene block structure is preferably 50% by weight or more, and more preferably 60% by weight. The above is particularly preferably 70% by weight or more, and most preferably 70% by weight to 90% by weight. /〇. When the content ratio of the structural unit derived from butene is within such a range, an adhesive layer which is excellent in wettability and adhesion and which is excellent in adhesion to a rough surface can be obtained. The acrylic thermoplastic resin may, for example, be polydecyl acrylate-polybutyl acrylate-polymethyl methacrylate copolymer (PMMA-PBA-PMMA copolymer); and may have polybutyl acrylate. Carboxylic acid • PMMA-functional PBA-PMMA copolymer as a functional group; A commercially available product can be used for the acrylic thermoplastic resin. Specific examples of the acrylic thermoplastic resin which is a commercially available product include the trade name "NABSTAR" manufactured by KANEKA Co., Ltd., and the trade name "LA POLYMER" manufactured by ICURARAY Co., Ltd., and the like. 099120780 27 201114593 Eight of the above adhesive tapes contain other ingredients as needed. Other components include, for example, an olefin resin, a polywei resin, a liquid acrylic acid, a polymer, a polyethyleneimine, a fatty acid guanamine, a phosphate ester, a general additive, and the like. The kind, number, and amount of other components contained in the above adhesive layer can be appropriately set depending on the purpose. Examples of the above additives include a tackifier; a softener; an anti-aging agent; a hindered amine-based photo-tanning agent; an ultraviolet absorber; an oxidation agent, an emulsification lock, a silica dioxide, a zinc oxide, a titanium oxide, and the like. Or pigment; etc. The adhesion of the tackifier can effectively improve the adhesion. In order to avoid the occurrence of residual rubber problems due to a decrease in cohesive force, the amount of the tackifier may be appropriately set to any appropriate blending amount depending on the adherend. The flux f is preferably 〇 4 〇 by weight, more preferably 〇 3 〇 by weight, even more preferably 0 to 1 重量 by weight, based on the weight of the resin material (10) forming the adhesive. Examples of the tackifier include a petroleum-based resin such as an aliphatic copolymer, an aromatic copolymer, an aliphatic-aromatic copolymer, or a cyclic ring copolymer, a couma bean (tetra) resin, and a boxene. A rosin-based resin such as a resin, a (four)-age resin, a poly-scented scent, a (sintering) sizing resin, a xylene-based resin, or an octane hydride. The tackifier can be used alone or in combination. From the viewpoints of peelability, weather resistance, and the like, it is preferably, for example, "ARK0N p_125 manufactured by Chuan Chemical Industry Co., Ltd., and other gasification systems are used to increase the viscosity. In addition, the tackifier can also be used. A product of a hydrocarbon resin or a thermoplastic elastomer in the form of a dopant. 099120780 28 201114593 The blending of a softener can effectively improve the adhesion. Examples of the softening agent include a low molecular weight diene polymer and polyisobutylene. And a derivative of hydrogenated polyisobutylene, hydrogenated polybutadiene or the like. Examples of the derivative include a derivative having an OH group or a c〇〇H group at one terminal or both terminals. : hydrogenated polybutadiene diol, hydrogenated polybutadiene monool, hydrogenated polyisoprene dihydrate, hydrogenated polyisoprene monool, etc. In order to further suppress the adhesion to the adherend, A hydrogenated product of a diene polymer such as a hydrogenated polybutadiene or a hydrogenated polyisoprene, or an olefin softener or the like is used. Specific examples thereof include "KURAPRENE LIR-200" manufactured by KURARAY Co., Ltd., and the like. These softeners may be used singly or in combination of two or more. Eight soft = the molecular weight of the agent can be set to an arbitrary amount. When the knives of the softener exceed λ!, it may cause the material f to move toward the residue or be easily peeled off (re-peeling). On the other hand, when the molecular weight of the softener is too large, t tends to increase the effect. The average molecular reading of the softening class is good for the logic ~ face (8), and better let (four) _. In the case of using a softener, 1 amount. When the amount of the softener added is too large, the amount of the softener is appropriately increased. Therefore, the phase dish has a residual component, preferably 4 parts by weight or less, and 10 parts by weight or less. It is inclined to be more than 20 parts by weight, more preferably: 100 parts by weight of the resin material forming the adhesive, and when the amount of cerium added exceeds 4. parts by weight, in a high temperature environment; the residual glue under the road becomes remarkable. Storm 099120780 29 201114593 The above-mentioned adhesive layer can be subjected to surface treatment on one side or both sides as needed. Surface treatments include, for example, corona discharge treatment, ultraviolet irradiation treatment, flame treatment, plasma treatment, sputtering etching treatment, etc. -2. Method of Manufacturing Adhesive Tape The adhesive tape of the present invention can be obtained by any appropriate manufacturing method. In the method for producing an adhesive tape of the present invention, for example, a method of coextruding the base material layer, the surface layer, and the pressure-sensitive adhesive layer constituting the laminated film of the present invention (manufacturing method 1); a method of thermally coating the above-mentioned surface layer on the side where the surface layer is not disposed (manufacturing method 2); and applying an organic solvent coating liquid or water in which an adhesive is dissolved on the side of the laminated film on which the surface layer is not disposed A method of dispersing an emulsion of an adhesive (manufacturing method 3) or the like. Further, the laminated film in the production methods 2 and 3 can be obtained by the method described in the item A-3. When the adhesive tape is produced by the above-described production method 1 or 2, the above-mentioned thermoplastic adhesive can be preferably used as the adhesive constituting the adhesive layer. In the above-described production method 1, the above-described co-extrusion method may use an extruder and a co-extrusion die for the base material forming material, the surface layer forming material, and the adhesive layer forming material, respectively, according to the blow molding method, T Word model method and so on. When the adhesive tape is produced by the above-described production method 2 or 3, it is preferable to carry out an easy adhesion treatment on the surface on which the adhesive is applied, that is, the surface on the side of the laminated film on which the surface layer is not disposed. Examples of the easy adhesion treatment include corona discharge treatment, ITRO treatment (tantalum oxide treatment), anchor coating treatment, and the like. When the adhesive tape is produced by the above-described production method 3, the above-mentioned rubber-based adhesive, acrylic adhesive or polyoxynoxy adhesive can be preferably used as the adhesive constituting the adhesive layer. When the adhesive tape is produced by the above production method 3, the above organic solvent may be any suitable solvent. The organic solvent may, for example, be an aromatic hydrocarbon solvent such as hydrazine or diphenylbenzene; an aliphatic carboxylic acid ester solvent such as ethyl acetate; or an aliphatic hydrocarbon solvent such as hexane, heptane or octane. These organic solvents may be used singly or in combination of two or more. When the adhesive tape is produced by the above production method 3, the organic solvent coating liquid may contain a crosslinking agent. The crosslinking agent may, for example, be an epoxy crosslinking agent, an isocyanate crosslinking agent or an aziridine crosslinking agent. Any suitable coating method can be employed as the coating method in the production of the adhesive tape by the above-described production method 3. The coating method may, for example, be a method using a bar coater, a gravure coater, a spin coater, a roll coater, a knife coater, or an applicator. [Examples] Hereinafter, the present invention will be specifically described by examples, but the present invention is not limited to the examples. In addition, the test and evaluation methods in the examples and the like are as follows. (1) Image sharpness The measurement was carried out under the conditions of a transmissive type and a light comb of 2 mm, manufactured by SUGA Test Machine Co., Ltd. as defined by JIS K7105: "ICM-1". Further, the image sharpness in the longitudinal direction was measured by making the longitudinal direction of the laminated film or the adhesive tape parallel to the line direction of the translucent portion of the optical fiber wearing 099120780 31 201114593. The image sharpness in the width direction was measured by making the longitudinal direction of the laminated film or the adhesive tape orthogonal to the line direction of the penetration portion of the optical comb. Image sharpness is calculated by image sharpness (%; KM-m) / (M + ni) x l 〇〇 (M: highest wave height, m: lowest wave height). (2) Arithmetic average surface rough greenness Ra After attaching a laminated film or an adhesive tape to a glass slide, the surface roughness of the surface layer 'Using an optical profiler NT9100 (manufactured by Veeco)), in measurement type: VSI (infinite Scan, infinite dimension scan), target: 2. 5X, FOV: 1. 0X, modulation threshold: 〇. 1〇/. The measurement was carried out under the conditions of n=3. After the measurement, the data is analyzed under the condition of “Terms Removal”: only Tilt 〇niy (Plane Fit), Window Filtering: None (None). Average surface roughness of the opposite. (3) Haze value was measured using a haze meter HM-150 (manufactured by Murakami Color Technology Co., Ltd.). The haze is calculated according to JIS K7136 by haze (%) = Tdm χ 1 〇〇 (Td: diffusion transmittance, Tt: total light transmittance). [Example 1] As a surface layer forming material, a base material layer forming material, and a smooth layer forming material, the following compounds were prepared. Surface layer forming material: low density polyethylene (made by Tosoh Corporation):

Petrothene 209;熔融流動速率（MFR)=45( 19〇。〇、2 I6kgf)) 099120780 32 201114593 50份與乙稀-醋酸乙烯酯共聚物（三井杜邦化學股份有限公 司製：EVAFLEX EV270 ; MFR=1.0 ( 19(TC、2.16kgf));醋 酸乙烯酯（VA)含量：28重量％) 50份的混合物 基材層形成材料··嵌_段聚丙烯（SunAllomer製：PF380A) 平滑層形成材料：低密度聚乙烯（日本聚乙烯公司製： NOVATEC LD LC720) 藉由T字模熔融共擠出上述材料成形，得到依次具有表 面層、基材層與平滑層的積層膜（1)。表面層的厚度為2μιη， 基材層的厚度為38μιη，平滑層的厚度為7μιη。對所得積層 膜（1)的評價結果如表1所示。 [實施例2] 除了使用低雄、度聚乙稀（東曹股份有限公司製：Petrothene 209) 80份與乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份 有限公司製：EVAFLEX EV270 ) 20份的混合物代替低密度 聚乙烯（東曹股份有限公司製：petr〇thene 209) 50份與乙 烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEX EV270) 50份的混合物作為表面層形成材料以 外’與實施例1同樣操作，得到積層膜（2)。表面層的厚度 為2μηι，基材層的厚度為38μηι，平滑層的厚度為7μιη。對 所得積層膜〇2)的評價結果如表1所示。 [實施例3] 除了使用低密度聚乙婶（東曹股份有限公司製：Petrothene 099120780 33 201114593 209 ) 70份與乙稀-醋酸乙烯醋共聚物（三井杜邦化學股份 有限公司製：EVAFLEXEV270) 30份的混合物代替低密度 ^^乙稀（東曹股伤有限公司製♦ Petrothene 209 ) 5〇份與乙 烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司勢： EVAFLEX EV270) 50份的混合物作為表面層形成材料以 外，與實施例1同樣操作，得到積層膜（3)。表面層的厚度 為2μιη，基材層的厚度為38μπι，平滑層的厚度為7μιη。對 所得積層膜（3)的評價結果如表1所示。 [實施例4] 除了使用低密度聚乙烯（東曹股份有限公司製：petr〇thene 209) 60份與乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份 有限公司製：EVAFLEX EV270 ) 40份的混合物代替低密度 聚乙烯（東曹股份有限公司製：Petrothene 209) 50份與乙 烯-醋酸乙稀酯共聚物（三井杜邦化學股份有限公司製： EVAFLEX EV270) 50份的混合物作為表面層形成材料以 外，與實施例1同樣操作’得到積層膜（4 )。表面層的厚度 為2μηι ’基材層的厚度為38μιη ’平滑層的厚度為7μιη。對 所得積層膜（4)的評價結果如表1所示。 [實施例5] 除了使用低密度聚乙烯（日本聚乙烯公司製：N0VATEC LD LJ803 ; MFR=22 ( 190°C、2.16kgf)) 50 份代替低密度聚 乙烯（東曹股份有限公司製：Petrothene 209) 50份作為表 099120780 34 201114593 面層形成材料以外，與實施例！同樣操作，得到積層膜⑸。 表面層的厚度為2μχη’基材層的厚度為3恤，平滑層的厚 度為7哗。對所得積層膜⑴的評價結果如表i所示 [實施例6] .作為表面層形成材料、基材層形成材料與㈣劑層形成材 料，準備以下的化合物。 • 表面層形成材料：低密度聚乙烯（東曹股份有限公司製：Petrothene 209; melt flow rate (MFR) = 45 (19 〇. 〇, 2 I6kgf)) 099120780 32 201114593 50 parts copolymerized with ethylene-vinyl acetate (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270; MFR=1.0 (19 (TC, 2.16 kgf)); Vinyl acetate (VA) content: 28% by weight) 50 parts of the mixture base material forming material··Inlay-segment polypropylene (manufactured by SunAllomer: PF380A) Smoothing layer forming material: low Density polyethylene (manufactured by Nippon Polyethylene Co., Ltd.: NOVATEC LD LC720) The above-mentioned material was melt-extruded by a T-die to obtain a laminated film (1) having a surface layer, a base material layer, and a smooth layer in this order. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (1) are shown in Table 1. [Example 2] In addition to 80 parts of low-male, polyethylene (Petrochene 209), and ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) 20 parts The mixture was used as a surface layer forming material in a mixture of 50 parts of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) in place of low-density polyethylene (made by Tosoh Corporation: petr〇thene 209) In the same manner as in Example 1, a laminated film (2) was obtained. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film 〇 2) are shown in Table 1. [Example 3] In addition to the use of low-density polyethylene (manufactured by Tosoh Corporation: Petrothene 099120780 33 201114593 209) 70 parts and ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 30 parts The mixture is replaced by a low-density ^^ Ethyl (Dyracose Co., Ltd. ♦ Petrothene 209) 5 parts and ethylene-vinyl acetate copolymer (Mitsui DuPont Chemical Co., Ltd. potential: EVAFLEX EV270) 50 parts of the mixture as a surface A laminate film (3) was obtained in the same manner as in Example 1 except for the layer formation material. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (3) are shown in Table 1. [Example 4] A mixture of 60 parts of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) of 40 parts was used in addition to low-density polyethylene (manufactured by Tosoh Corporation: petr〇thene 209) 50 parts of a mixture of 50 parts of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) as a surface layer forming material, in place of low-density polyethylene (manufactured by Tosoh Corporation: Petrothene 209) The laminate film (4) was obtained in the same manner as in Example 1. The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 μm. The thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (4) are shown in Table 1. [Example 5] In place of low-density polyethylene (made by Tosoh Corporation: Petrothene), 50 parts of low-density polyethylene (N0VATEC LD LJ803; MFR=22 (190 ° C, 2.16 kgf)) was used. 209) 50 parts as a table 099120780 34 201114593 face layer forming material, and examples! In the same manner, a laminated film (5) was obtained. The thickness of the surface layer was 2 μχη. The thickness of the substrate layer was 3 Å, and the thickness of the smooth layer was 7 Å. The evaluation results of the obtained laminated film (1) are shown in Table 1. [Example 6] As the surface layer forming material, the base material layer forming material, and the (iv) agent layer forming material, the following compounds were prepared. • Surface layer forming material: low density polyethylene (made by Tosoh Corporation):

Petr〇thene2〇9) 50份、乙烯-醋酸乙稀醋共聚物（三井杜邦 化學股份有限公司製：EVAFLEX EV27G)) 5()份和長鍵烧Petr〇thene2〇9) 50 parts, ethylene-acetic acid ethylene vinegar copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV27G)) 5 () parts and long bond burning

基系剝_ Usmo產業股份有限公_ : AS腿RESIN RA95HS (凡全皂化的聚乙烯十八烷基胺基曱酸酯系剝離 劑））10份的混合物 基材層形成材料：嵌段聚丙烯（SunA11〇mer製 ：PF380A) 黏著劑層形成材料：苯乙烯-乙稀_ 丁烯_苯乙婦嵌段共聚物 (SEBS) (Kraton P〇iymers&司製：G1657) 75 份與增黏劑 (瓜川化學工業股份有限公司製：ARK〇Np_i25) 25份的混 合物 精由T字麟融共擠丨上述材料成形，得到依次具有表 面層、基材層與黏著劑層的點著帶⑴。表面層的厚度為 2μηι ’基材層的厚度為38μηι，勘著劑層的厚度為 7μηι。對 所得黏著帶（1)的評價結果如表2所示。 [實施例7] 099120780 35 201114593 除了使用低密度聚乙烯（東曹股份有限公司製：petr〇thene 209 ) 80份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份、且使用乙烯-醋酸乙烯酯共聚物（三 井杜邦化學股份有限公司製：EVAFLEXEV270) 20份代替 乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEXEV270) 50份作為表面層形成材料以外，與實施 例6同樣操作，得到黏著帶（2)。表面層的厚度為2μιη， 基材層的厚度為38μηι，黏著劑層的厚度為7μηι。對所得黏 著帶（2)的評價結果如表2所示。 [實施例8] 除了使用低密度聚乙烯（東曹股份有限公司製：petrothene 209 ) 70份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份、且使用乙烯-醋酸乙烯酯共聚物（三 井杜邦化學股份有限公司製：EVAFLEXEV270) 30份代替 乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEXEV270) 50份作為表面層形成材料以外，與實施 例6同樣操作，得到黏著帶（3 )。表面層的厚度為2pm， 基材層的厚度為38μπι，黏著劑層的厚度為7μηι。對所得黏 著帶（3)的評價結果如表2所示。 [實施例9] 除了使用低密度聚乙烯（東曹股份有限公司製：Petr〇thene 209 ) 60份代替低密度聚乙烯（東曹股份有限公司製： 099120780 36 201114593Base stripping _ Usmo Industry Co., Ltd. _ : AS leg RESIN RA95HS (where fully saponified polyethylene octadecylamine phthalate stripper)) 10 parts mixture base layer forming material: block polypropylene (Manufactured by SunA11〇mer: PF380A) Adhesive layer forming material: styrene-ethylene _ butylene styrene block copolymer (SEBS) (Kraton P〇iymers & system: G1657) 75 parts and tackifier (Manufactured by Guakawa Chemical Industry Co., Ltd.: ARK〇Np_i25) 25 parts of the mixture was formed by co-extruding the above materials to obtain a spotted belt (1) having a surface layer, a substrate layer and an adhesive layer in this order. The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μm, and the thickness of the coating layer was 7 μm. The evaluation results of the obtained adhesive tape (1) are shown in Table 2. [Example 7] 099120780 35 201114593 In place of low-density polyethylene (made by Tosoh Corp.: petr〇thene 209) 80 parts instead of low-density polyethylene (manufactured by Tosoh Corporation: Petrothene 209) 50 parts, and used Ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 20 parts instead of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 50 parts as a surface layer forming material, and implemented Example 6 was operated in the same manner to obtain an adhesive tape (2). The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (2) are shown in Table 2. [Example 8] In place of low-density polyethylene (manufactured by Tosoh Corp.: petrothene 209) 70 parts instead of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) 50 parts, and ethylene-vinyl acetate was used. Copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 30 parts instead of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 50 parts were used as the surface layer forming material, and the same operation as in Example 6 was carried out. The adhesive tape (3) is obtained. The thickness of the surface layer was 2 pm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (3) are shown in Table 2. [Example 9] In place of low-density polyethylene (manufactured by Tosoh Corporation: 099120780 36 201114593), 60 parts of low-density polyethylene (manufactured by Tosoh Corporation: Petr〇thene 209) was used.

Petrothene 209) 50份、且使用乙烯-醋酸乙烯酯共聚物（三 井杜邦化學股份有限公司製：EVAFLEXEV270) 40份代替 乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEX EV270 > 50份作為表面層形成材料以外，與實施 例ό同樣操作’得到黏著帶（4 )。表面層的厚度為2pm， 基材層的厚度為38μιη，黏著劑層的厚度為7μιη。對所得黏 著帶（4)的評價結果如表2所示。 [實施例10] 除了使用低密度聚乙烯（日本聚乙烯公司製：n〇vatec LD LJ803 ) 50伤代替低在、度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份作為表面層形成材料以外，與實施例 6同樣操作’得到黏著帶（5)。表面層的厚度為2μιη，基材 層的厚度為3 8 μιη ’黏著劑層的厚度為7 μιη。對所得黏著帶 (5 )的評價結果如表2所示。 [比較例1] 除了使用低岔度聚乙烯（東曹股份有限公司製：petr〇thene 209) 10份與乙烯-醋酸乙稀g旨共聚物（三井杜邦化學股份 有限公司製：EVAFLEXEV270) 90份的混合物代替低密度 聚乙烯（東曹股份有限公司製：Petr〇thene 2〇9) 5〇份與乙 烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEX EV270 ) 50份的混合物作為表面層形成材料以 外，與實施例1同樣操作，得到積層膜（C1;^表面層的厚 099120780 37 201114593 度為2μιη ’基材層的厚度為38μηι，平滑層的厚度為7μιη。 對所得積層膜（C1)的評價結果如表1所示。 [比較例2]Petrothene 209) 50 parts and using ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 40 parts instead of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270 > 50 In the same manner as in Example ', the adhesive tape (4) was obtained in the same manner as in Example 。. The thickness of the surface layer was 2 pm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of 4) are shown in Table 2. [Example 10] In addition to the use of low-density polyethylene (Nippon Polyethylene Co., Ltd.: n〇vatec LD LJ803) 50 wounds instead of low-grade polyethylene (Dongcao Co., Ltd.) Preparation: Petrothene 209) 50 parts of the surface layer forming material, the same operation as in Example 6 was carried out to obtain an adhesive tape (5). The thickness of the surface layer was 2 μm, and the thickness of the base material layer was 3 8 μm. The results of evaluation of the obtained adhesive tape (5) are shown in Table 2. [Comparative Example 1] In addition to low-twist polyethylene (made by Tosoh Corporation: petr〇thene 209) 10 And a mixture of 90 parts of ethylene-vinyl acetate-based copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) instead of low-density polyethylene (manufactured by Tosoh Corporation: Petr〇thene 2〇9) 5 parts and Ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) 50 parts of the mixture was used as a surface layer forming material, and a laminate film was obtained in the same manner as in Example 1 (C1; ^ surface layer thickness 099120780 37 The thickness of the base layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C1) are shown in Table 1. [Comparative Example 2]

除了使用低密度聚乙烯（日本聚乙烯公司製：NO VATEC LD LC720 ; MFR=9.4 ( 190〇C、2.16kgf)) 50 份代替低密度 聚乙烯（東曹股份有限公司製：Petrothene 209) 50份作為 表面層形成材料以外，與實施例1同樣操作，得到積層膜 (C2)。表面層的厚度為2μιη，基材層的厚度為38μιη，平滑 層的厚度為7μηι。對所得積層膜（C2)的評價結果如表1 所示。 [比較例3] 除了使用低密度聚乙烯（東曹股份有限公司製：Petrothene 217 ; MFR=4.5 ( 190°C、2.16kgf)) 50 份代替低密度聚乙烯 (東曹股份有限公司製：Petrothene 209) 50份作為表面層形 成材料以外，與實施例1同樣操作，得到積層膜（C3)。表 面層的厚度為2μιη，基材層的厚度為38μηι，平滑層的厚度 為7μιη。對所得積層膜（C3 )的評價結果如表1所示。 [比較例4] 除了使用低密度聚乙烯（日本聚乙烯公司製：NOVATEC LD LC701 ; MFR=14 ( 190°C、2.16kgf)) 50 份代替低密度 聚乙稀（東曹股份有限公司製：Petrothene 209) 50份作為 表面層形成材料以外，與實施例1同樣操作，得到積層膜 099120780 38 201114593 (C4)。表面層的厚度為2μιη’基材層的厚度為38哗，平滑 層的厚度為7，。對所得積層膜（C4)的評價結果如表i 所示。 [比較例5]In addition to low-density polyethylene (Nippon Polyethylene Co., Ltd.: NO VATEC LD LC720; MFR = 9.4 (190 ° C, 2.16 kgf)) 50 parts instead of low-density polyethylene (Tokyo Co., Ltd.: Petrothene 209) 50 parts A laminate film (C2) was obtained in the same manner as in Example 1 except that the surface layer forming material was used. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C2) are shown in Table 1. [Comparative Example 3] In place of low-density polyethylene (made by Tosoh Corporation: Petrothene), 50 parts of low-density polyethylene (made by Tosoh Corporation: Petrothene 217; MFR = 4.5 (190 ° C, 2.16 kgf)) 209) 50 parts of a surface layer forming material was used, and a laminated film (C3) was obtained in the same manner as in Example 1. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C3) are shown in Table 1. [Comparative Example 4] In place of low-density polyethylene (manufactured by Tosoh Corp., Ltd.), 50 parts of low-density polyethylene (NOVATEC LD LC701; MFR = 14 (190 ° C, 2.16 kgf)) was used. Petrothene 209) A laminate film of 099120780 38 201114593 (C4) was obtained in the same manner as in Example 1 except that 50 parts of the surface layer forming material was used. The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 Å, and the thickness of the smooth layer was 7. The evaluation results of the obtained laminated film (C4) are shown in Table i. [Comparative Example 5]

除了使用低後度聚乙稀（曰本聚乙稀公司製：No vatEC • LDLC72〇)5〇份與乙烯-醋酸乙稀醋共聚物（日本聚乙稀公 • 司製：NOVATEC EVA LV211 ; MFR=〇.3 ( 19〇χ：、2 16kgf); VA含® . 6重直％) 50份的混合物代替低密度聚乙烯（東 曹股份有限公司製：Petr〇thene209) 50份與乙烯-醋酸乙烯 酉曰共^^物（二井杜邦化學股份有限公司製：EVAFLEX EV270) 50份的混合物作為表面層形成材料以外，與實施例 1同樣操作’得到積層膜（C5)。表面層的厚度為2μηι，基 材層的厚度為38μιη，平滑層的厚度為7μιη。對所得積層膜 (C5)的評價結果如表1所示。 [比較例6]In addition to the use of low-degree polyethylene (manufactured by Sakamoto Polyethylene Co., Ltd.: No vatEC • LDLC72〇) 5 parts and ethylene-acetic acid ethylene vinegar copolymer (Japan Polyethylene Corporation • System: NOVATEC EVA LV211; MFR =〇.3 (19〇χ:, 2 16kgf); VA with ® . 6% straight %) 50 parts of the mixture instead of low density polyethylene (made by Tosoh Corporation: Petr〇thene209) 50 parts with ethylene-acetic acid A laminate film (C5) was obtained in the same manner as in Example 1 except that a mixture of 50 parts of the mixture was used as a surface layer forming material. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C5) are shown in Table 1. [Comparative Example 6]

除了使用低密度聚乙烯（日本聚乙烯公司製：NO VATEC • LDLC720) 50份與乙烯-醋酸乙烯酯共聚物（東曹股份有限 •公司製：ULTRATHENE 627 ； MFR=0.8( 190°C > 2.16kgf)； VA含量：20重量％) 50份的混合物代替低密度聚乙烯（東 曹股份有限公司製：Petrothene 209) 50份與乙烯-醋酸乙烯 酯共聚物（三井杜邦化學股份有限公司製：EVAFLEX EV270) 50份的混合物作為表面層形成材料以外，與實施例 099120780 39 201114593 1同樣操作’得到積層膜（C6)。表面層的厚度為2μιη，基 材層的厚度為38μπι ’平滑層的厚度為7μπι。對所得積層膜 (C6 )的評價結果如表1所示。 [比較例7] 除了不使用表面層形成材料的乙烯-醋酸乙烯酯共聚物以 外’與實施例1同樣操作，得到積層膜（C7)。表面層的厚 度為2μιη，基材層的厚度為38μπι，平滑層的厚度為7μηι。 對所得積層膜（C7)的評價結果如表1所示。 [比較例8] 除了使用低後度聚乙烤（東曹股份有限公司製：Petrothene 209 ) 10份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份、且使用乙烯-醋酸乙烯酯共聚物（三 井杜邦化學股份有限公司製：EVAFLEXEV270) 90份代替 乙烯-醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEXEV270) 50份作為表面層形成材料以外，與實施 例6同樣操作，得到黏著帶（C1)。表面層的厚度為2μηι， 基材層的厚度為38μιη ’黏著劑層的厚度為7μιη。對所得黏 著帶（C1)的評價結果如表2所示。 [比較例9] 除了使用低密度聚乙烯（日本聚乙烯公司製：N0VATEC LD LC720)50份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份作為表面層形成材料以外’與實施例 099120780 40 201114593 6同樣操作’得到黏著帶（ο)。表面層的厚度為2师，基 材層的厚度為38陣，黏著劑層的厚度為所得黏^ 帶（C2)的評價結果如表2所示。 ' [比較例10] 除了使祕密度聚乙稀（東#股份有限公司製：ρ相^ 2π) 5〇份代替低密度聚乙烯（東曹股份有限公司製：In addition to low-density polyethylene (Nippon Polyethylene Co., Ltd.: NO VATEC • LDLC720) 50 parts and ethylene-vinyl acetate copolymer (Tokyo Co., Ltd.: ULTRATHENE 627; MFR = 0.8 (190 ° C > 2.16) Kgf); VA content: 20% by weight) 50 parts of the mixture instead of low density polyethylene (made by Tosoh Corp.: Petrothene 209) 50 parts and ethylene-vinyl acetate copolymer (made by Mitsui DuPont Chemical Co., Ltd.: EVAFLEX EV270) A mixture of 50 parts of the mixture was used as a surface layer forming material, and a laminate film (C6) was obtained in the same manner as in Example 099120780 39 201114593. The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μm. The thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C6) are shown in Table 1. [Comparative Example 7] A laminate film (C7) was obtained in the same manner as in Example 1 except that the ethylene-vinyl acetate copolymer of the surface layer forming material was not used. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C7) are shown in Table 1. [Comparative Example 8] In place of 10 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209), 50 parts of low-density polyethylene bake (made by Tosoh Corp.: Petrothene 209), and ethylene-acetic acid was used. Vinyl ester copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 90 parts instead of ethylene-vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 50 parts as the surface layer forming material, the same as in the sixth embodiment Operation to obtain an adhesive tape (C1). The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μm. The thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C1) are shown in Table 2. [Comparative Example 9] In place of 50 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209), 50 parts of low-density polyethylene (N0VATEC LD LC720, manufactured by Nippon Polyethylene Co., Ltd.) was used as the surface layer forming material. Example 099120780 40 201114593 6 The same operation 'gets the adhesive tape (ο). The thickness of the surface layer was 2 divisions, the thickness of the base layer was 38 arrays, and the thickness of the adhesive layer was as shown in Table 2 for the evaluation results of the obtained adhesive tape (C2). [Comparative Example 10] In place of the low-density polyethylene (made by Tosoh Corporation), in addition to the secret degree polyethylene (manufactured by Tosoh Corporation: ρ phase ^ 2π) 5 parts

Petr0thene 209) 50份作為表面層形成材料以外，與實施例 6同樣操作’得到黏著帶（C3)。表面層的厚度為，基 材層的厚度為38μιη，黏著劑層的厚度為7μιη。對所得黏著 帶（C3 )的評價結果如表2所示。 [比較例11] 除了使用低岔度聚乙稀（日本聚乙烯公司製：N〇 vatec LD LC720 ) 50份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209) 50份、且使用乙稀-醋酸乙晞酯共聚物（曰 本聚乙烯公司製：NOVATEC EVA LV211) 50份代替乙稀_ 醋酸乙烯酯共聚物（三井杜邦化學股份有限公司製： EVAFLEXEV270) 50份作為表面層形成材料以外，與實施 例6同樣操作’得到黏著帶（C4)。表面層的厚度為叫⑺， 基材層的厚度為38μιη，黏著劑層的厚度為7μιη。對所得黏 著帶（C4)的評價結果如表2所示。 [比較例12] 除了不使用表面層形成材料的乙烯_醋酸乙稀醋共聚物以 099120780 41 201114593 外，與實施例6同樣操作，得到黏著帶（C5)。表面層的厚 度為2μηι，基材層的厚度為38μηι，黏著劑層的厚度為7μιη。 對所得黏著帶（C5)的評價結果如表2所示。 099120780 42 201114593 實施例5 I NOVATECLD U803 EVAFLEX EV270 ρ 〇〇 <N ! 50:50 NOVATECLD LC720 VO vS 11.9 vd | 50.1 1.17 |實施例4 1 Petrothene 209 EVAFLEX EV270 ρ 〇〇 CN 60:40 § 泛 66.8 00 實施例3 Petrothene 209 EVAFLEX EV270 ρ Ϊ-Η ΟΟ CN 70:30 v£> 七 00 «τί (N 65.6 1.36 實施例2 Petrothene 209 EVAFLEX EV270 P r-H 00 <N 80:20 ν〇 <N 'sd 1-M 9 51.6 0.86 p-H Petrothene 209 EVAFLEX EV270 P oo (N 50:50 Os / <N cn 60.7 1.59 商品名 S 1 _ 商品名 ψ 令 1 _ ‘Iftul Wl NW m 溫 装 〇 Je- 商品名 /-~N 系 害 Η s € \ιφί 荖 € 圖像清晰度的差[寬度方向-長度方 向I (%) | 钵 1 tts< 1 < ίΓ t 1 低密度聚乙烯 乙烯-醋酸乙烯酯共聚物 〇 鞠 表面層 1平滑層1 卜 -Ο S 考s 1 1 1 Ο 8 § 9 ΓΛ 64.3 29.2 寸 CN 0.43 錄 A3 NOVATECLD I LC720 5 1 00 〇 Μ Ο 57.2 52.2 〇 CN 0.94 iTi 1 NOVAIECLD LC720 5 NOVATECEVA LV211 ΓΟ 1 50:50 1 59.9 78.7 18.8 CN 0.30 寸 錄 Jj NOVATECLD LC701 EVAFLEX EV270 ρ r—Η οο CS 1 〇 42.0 37.0 寸 UO m i s in — EVAFLEX EV270 ρ 00 (Ν 1 50:50 1 寸 72.0 66.6 1__20.4 | S 0.74 CN 1 "ii NOVA1ECLD LC720 EVAFLEX EV270 ρ 00 CN 1 50:50 1 vp Γ 59.4 54.8 29.1 1 1.10 〇J s 专δ EVAFLEX EV270 ρ 1—^ 00 CN ο 76.7 11.6 p 1 t 0.29 商品名 1 1 1 商品名 S 1 1 I _ llfftll «ρπ s ο έ Ki ο 蜂 HQ <7»0^ «insw/ HQ ^7»0^ g| 甽㈣ _ 1 <4 贫¢2 低密度聚乙烯 乙烯-醋酸乙烯酯共聚物 表面層 €寸 0SS3I660 201114593 FT< 實施例10 NOVATEC LD LJ803 C<I CN1 EVAFLEX EV270 〇 00 CNI 50:50 G1657 (75 份）、ARK0N Ρ-125 (25 份） 〇 CO 10.8 〇〇 45.2 03 ¥ Petrothene 209 LO 寸 EVAFLEX EV270 C3 ι Η oo oa 60:40 OJ LO CO 63.5 1.78 實施例8 Petrothene 209 LO 寸 EVAFLEX EV270 C5 oo 70:30 ”丨< LO cd CO 1 1 < 60.2 1.30 實施例7 Petrothene 209 m 寸 EVAFLEX EV270 C5 ί—H oo 80:20 LO CO oo CO -0.3 48.9 <Νϊ ΟΟ cz> CO Petrothene 209 LO 寸 EVAFLEX EV270 <〇 r-H oo CM 50:50 寸 LO cd LO 55.8 1.51 商品名 令 Ο > Η 商品名 1 <〇 Cd dH φι 〇 諧 i «0 Μ ο δ4 商品名 S Μ ιιφί s 画 1 Μ 霧度值(％) 1 ! < ίΓ t 5 乙稀-醋酸乙烯酯共聚物 低密度聚乙烯 表面層 黏著劑層 比較例12 Petrothene 209 1 1 1 100:0 G1657 (75 份）、ARK0N Ρ-125 (25 份） 36.5 67.6 31.1 <=> 0.40 比車交例11 NOVATEC LD LC720 寸 σί NOVATEC EVA LV211 CO o’ CD 50:50 60.7 77.9 OJ 卜·· LO CD ι—Η 05 <NI <=> 比較例10 Petrothene 217 LO EVAFLEX EV270 ο ΟΟ 50:50 CD LO 74.0 68.4 cni LO 0.70 比較例9 NOVATEC LD LC720 寸 ①· EVAFLEX L EV270 C3 ΟΟ C0 50:50 〇〇 CO 60.8 57·0 ! 24.7 0. 98 比車交例8 1 Petrothene 1 209 EVAFLEX I EV270 Ο 1 < ΟΟ (Ν1 § C ι i 62.7 75.8 ι Η CO 〇〇 o C=5 i 商品名 1 〇 Μ < 商品名 i_-__________ 1 ο VA含量（重量%) Μ 溫 装 〇 〇 商品名 O' Μ ♦ S' Μ 1 Is 丽 O' 镟 1 i vg t % 低密度聚乙烯 乙稀-醋酸乙烯酯共聚物 表面層 黏著劑層 寸寸 0°°ΖΌ-660 201114593 [實施例11] 作為表面層形成材料、基材層形成材料與平滑層形成材 料，準備以下的化合物。 表面層形成材料：無規聚丙稀（日本聚丙稀股份有限公司 製：NOVATEC PP EG8 ;熔融流動速率(MFR)=0.8(230°C、 2.16kgf))50份和低密度聚乙烯（東曹股份有限公司製： Petrothene209;熔融流動速率(MFR)=45(190〇C、2.16kgf))50 份的混合物 基材層形成材料：嵌段聚丙烯(SunAllomer製：PF380A) 平滑層形成材料：低密度聚乙烯（日本聚乙烯公司製： NOVATEC LD LC720) 藉由T字模熔融共擠出上述材料成形，得到依次具有表 面層、基材層與平滑層的積層膜(6)。表面層的厚度為2μηι， 基材層的厚度為38μιη ’平滑層的厚度為7μιη。對所得積層 膜(6)的評價結果如表3所示。 [實施例12] 除了使用無規聚丙稀（日本聚丙婦股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=0.8(230〇C、 2.16kgf))50份與低密度聚乙烯（日本聚乙烯股份有限公司 製：NOVATEC LDLJ803 ;熔融流動速率（MFR)=22(190°C、 2.16kgf))50份的混合物代替無規聚丙烯（日本聚丙烯股份有 限公司製：NOVATEC PP EG8 ;熔融流動速率 099120780 45 201114593 (MFR)=0.8(230°C、2.16kgf))5〇份與低密度聚乙烯（東曹股份 有限公司製：Petrothene 209 ;溶融流動速率 (MFR)=45(190°C、2.16kgf))50份的混合物作為表面層形成 材料以外，與實施例11同樣操作，得到積層膜(7)。表面層 的厚度為2μηι’基材層的厚度為38μηι’平滑層的厚度為 7μπι。對所得積層膜(7)的評價結果如表3所示。 [實施例13] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=〇.8(23(TC、 2.16kgf))l〇份與低密度聚乙烯（東曹股份有限公司製：Petr0thene 209) 50 parts of the surface layer forming material was used in the same manner as in Example 6 to obtain an adhesive tape (C3). The thickness of the surface layer was such that the thickness of the substrate layer was 38 μm and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C3) are shown in Table 2. [Comparative Example 11] In place of 50 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209), 50 parts of low-density polyethylene (manufactured by Nippon Polyethylene Co., Ltd.: N〇vatec LD LC720), and using B Diethyl-acetate copolymer (NOVATEC EVA LV211) 50 parts instead of ethylene _ vinyl acetate copolymer (manufactured by Mitsui DuPont Chemical Co., Ltd.: EVAFLEXEV270) 50 parts as surface layer forming material In the same manner as in Example 6, 'adhesive tape (C4) was obtained. The thickness of the surface layer is called (7), the thickness of the substrate layer is 38 μm, and the thickness of the adhesive layer is 7 μm. The evaluation results of the obtained adhesive tape (C4) are shown in Table 2. [Comparative Example 12] An adhesive tape (C5) was obtained in the same manner as in Example 6 except that the ethylene-acetic acid ethyl acetate copolymer which did not use the surface layer forming material was 099120780 41 201114593. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C5) are shown in Table 2. 099120780 42 201114593 Example 5 I NOVATECLD U803 EVAFLEX EV270 ρ 〇〇<N ! 50:50 NOVATECLD LC720 VO vS 11.9 vd | 50.1 1.17 | Example 4 1 Petrothene 209 EVAFLEX EV270 ρ 〇〇CN 60:40 § Pan 66.8 00 Example 3 Petrothene 209 EVAFLEX EV270 ρ Ϊ-Η ΟΟ CN 70:30 v£> Seven hundred «τί (N 65.6 1.36 Example 2 Petrothene 209 EVAFLEX EV270 P rH 00 <N 80:20 ν〇<N ' Sd 1-M 9 51.6 0.86 pH Petrothene 209 EVAFLEX EV270 P oo (N 50:50 Os / <N cn 60.7 1.59 Product name S 1 _ Product name 令 Order 1 _ 'Iftul Wl NW m Warm 〇Je-trade name /-~N系Η s € \ιφί 荖€ Image clarity difference [width direction - length direction I (%) | 钵1 tts< 1 < Γ t 1 Low density polyethylene ethylene-vinyl acetate copolymerization Material surface layer 1 Smooth layer 1 Bu-Ο S s 1 1 1 Ο 8 § 9 ΓΛ 64.3 29.2 inch CN 0.43 Record A3 NOVATECLD I LC720 5 1 00 〇Μ Ο 57.2 52.2 〇CN 0.94 iTi 1 NOVAIECLD LC720 5 NOVATECEVA LV211 ΓΟ 1 50:50 1 59.9 78.7 18.8 CN 0.30 inch record Jj NOVATECLD L C701 EVAFLEX EV270 ρ r—Η οο CS 1 〇42.0 37.0 inch UO mis in — EVAFLEX EV270 ρ 00 (Ν 1 50:50 1 inch 72.0 66.6 1__20.4 | S 0.74 CN 1 "ii NOVA1ECLD LC720 EVAFLEX EV270 ρ 00 CN 1 50:50 1 vp Γ 59.4 54.8 29.1 1 1.10 〇J s δ EVAFLEX EV270 ρ 1—^ 00 CN ο 76.7 11.6 p 1 t 0.29 trade name 1 1 1 trade name S 1 1 I _ llfftll «ρπ s ο έ Ki ο Bee HQ <7»0^ «insw/ HQ ^7»0^ g| 甽(4) _ 1 <4 Barren 2 Low Density Polyethylene Ethylene Vinyl Acetate Copolymer Surface Layer € inch 0SS3I660 201114593 FT< Example 10 NOVATEC LD LJ803 C<I CN1 EVAFLEX EV270 〇00 CNI 50:50 G1657 (75 parts), ARK0N Ρ-125 (25 parts) 〇CO 10.8 〇〇45.2 03 ¥ Petrothene 209 LO inch EVAFLEX EV270 C3 ι Η oo Oa 60:40 OJ LO CO 63.5 1.78 Example 8 Petrothene 209 LO inch EVAFLEX EV270 C5 oo 70:30 ” 丨 < LO cd CO 1 1 < 60.2 1.30 Example 7 Petrothene 209 m inch EVAFLEX EV270 C5 ί—H oo 80:20 LO CO oo CO -0.3 48.9 <Νϊ ΟΟ cz> CO Petrothene 209 LO inch EVAFLEX EV2 70 <〇rH oo CM 50:50 inch LO cd LO 55.8 1.51 Product name Ο > Η Product name 1 <〇Cd dH φι 〇harmonic i «0 Μ ο δ4 Product name S Μ ιιφί s Painting 1 Μ Fog Degree (%) 1 ! < Γ t 5 Ethylene-vinyl acetate copolymer low-density polyethylene surface layer adhesive layer Comparative Example 12 Petrothene 209 1 1 1 100:0 G1657 (75 parts), ARK0N Ρ-125 (25 copies) 36.5 67.6 31.1 <=> 0.40 than car case 11 NOVATEC LD LC720 inch σί NOVATEC EVA LV211 CO o' CD 50:50 60.7 77.9 OJ 卜·· LO CD ι—Η 05 <NI <=> Comparative Example 10 Petrothene 217 LO EVAFLEX EV270 ο ΟΟ 50:50 CD LO 74.0 68.4 cni LO 0.70 Comparative Example 9 NOVATEC LD LC720 inch 1· EVAFLEX L EV270 C3 ΟΟ C0 50:50 〇〇CO 60.8 57·0 ! 24.7 0. 98 than car example 8 1 Petrothene 1 209 EVAFLEX I EV270 Ο 1 < ΟΟ (Ν1 § C ι i 62.7 75.8 ι Η CO 〇〇o C=5 i Trade name 1 〇Μ < Product name i_-__________ 1 ο VA content (% by weight) Μ Warm decoration 〇〇 Product name O' Μ ♦ S' Μ 1 Is Li O' 镟1 i vg t % Low Degree Polyethylene Ethylene-Vinyl Acetate Copolymer Surface Layer Adhesive Layer Size 0°°ΖΌ-660 201114593 [Example 11] As a surface layer forming material, a base material layer forming material, and a smooth layer forming material, the following compounds were prepared. . Surface layer forming material: random polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 0.8 (230 ° C, 2.16 kgf)) 50 parts and low density polyethylene (Tosoh shares) Co., Ltd.: Petrothene 209; melt flow rate (MFR) = 45 (190 〇 C, 2.16 kgf)) 50 parts mixture substrate layer forming material: block polypropylene (manufactured by SunAllomer: PF380A) Smooth layer forming material: low density Polyethylene (manufactured by Nippon Polyethylene Co., Ltd.: NOVATEC LD LC720) The above-mentioned material was melt-molded by a T-die to obtain a laminated film (6) having a surface layer, a base material layer, and a smooth layer in this order. The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μm. The thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (6) are shown in Table 3. [Example 12] In addition to the use of random polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 0.8 (230 〇 C, 2.16 kgf)) 50 parts with low density polyethylene (Japan Polyethylene Co., Ltd.: NOVATEC LDLJ803; melt flow rate (MFR) = 22 (190 ° C, 2.16 kgf)) 50 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melting Flow rate 099120780 45 201114593 (MFR) = 0.8 (230 ° C, 2.16 kgf)) 5 parts and low density polyethylene (made by Tosoh Corp.: Petrothene 209; melt flow rate (MFR) = 45 (190 ° C) A laminate film (7) was obtained in the same manner as in Example 11 except that a mixture of 50 parts of the mixture was used as a surface layer forming material. The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 μm. The thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (7) are shown in Table 3. [Example 13] In addition to the use of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇.8 (23 (TC, 2.16 kgf))) and low density poly Ethylene (made by Tosoh Corporation):

Petrothene 209 ;熔融流動速率（MFR)=45(19(TC、2.16kgf))90 份的混合物代替無規聚丙烯（日本聚丙烯股份有限公司製·· NOVATEC PP EG8 ;熔融流動速率（MFR)=0.8(230〇C、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製： Petrothene 209 ;炫融流動速率（MFR)=45(190°C、2.16kgf))50 份的混合物作為表面層形成材料以外，與實施例11同樣操 作，得到積層膜(8)。表面層的厚度為2μιη，基材層的厚度 為38μιη，平滑層的厚度為7μιη。對所得積層膜(8)的評價結 果如表3所示。 [實施例14] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=〇.8(23〇t：、 099120780 46 201114593 2_16kgf))20份與低密度聚乙烯（東曹股份有限公司製： Petrothene 209 ;熔融流動速率（MFR)=45(190°C、2.16kgf))80 份的混合物代替無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=0.8(230°C、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製： Petrothene209;熔融流動速率（MFR)=45(19(TC、2.16kgf))50 份的混合物作為表面層形成材料以外，與實施例U同樣操 作’得到積層膜(9)。表面層的厚度為2μιη，基材層的厚度 為38μπι，平滑層的厚度為7μιη。對所得積層膜的評價結 果如表3所示。 [實施例15] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;溶融流動速率（MFR)=〇 8(23〇cc、 2.16kgf))30份與低密度聚乙烯（東曹股份有限公司製：Petrothene 209; melt flow rate (MFR) = 45 (19 (TC, 2.16 kgf)) 90 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd. · NOVATEC PP EG8; melt flow rate (MFR) = 0.8 (230 〇C, 2.16 kgf)) 50 parts of a mixture with 50 parts of low density polyethylene (manufactured by Tosoh Corporation: Petrothene 209; smelting flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) A laminate film (8) was obtained in the same manner as in Example 11 except that the surface layer forming material was used. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (8) are shown in Table 3. [Example 14] In addition to the use of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇.8 (23〇t:, 099120780 46 201114593 2_16kgf)) 20 parts and low Density polyethylene (made by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) 80 parts of a mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 0.8 (230 ° C, 2.16 kgf)) 50 parts with low density polyethylene (made by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) = 45 (19 (TC, 2.16 kgf)) 50 parts of the mixture was used as the surface layer forming material, and the laminate film (9) was obtained in the same manner as in Example U. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film are shown in Table 3. [Example 15] In addition to the use of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇 8 (23 〇) Cc, 2.16kgf)) 30 parts with low density polyethylene ( Cao Co., Ltd .;:

Petrothene 209 ;熔融流動速率（MFR)=45(190°C、2.16kgf))70 份的混合物代替無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC pp EG8 ;熔融流動速率 _R)=〇 8(23〇。〇、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製： Petrothene2〇9;熔融流動速率（MFR)=45(19(rc、2 脱奶)5〇 份的混合物作為表面層形成材料以外，與實施例U同樣操 作’得到積層膜(·表面層的厚度為2μιη，基材層的厚度 為38μηι，平滑層的厚度為7μπι。對所得積層獏〇…的評價 099120780 47 201114593 結果如表3所示。 [實施例16] 除了使用無規聚丙稀（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;㈣流動速率（mfr)=〇 8(23旳、 2.16kgf))40份與低密度聚乙稀（東曹股份有限公司製·· Petrothene 209 ’ 熔融流動速率（mfr)=45(19〇(3c、2 i6kgf))6〇 h的此。物代替無規聚丙烯（日本聚丙烯股份有限公司製： N〇VATEC PP EG8 動速率（MFR)=0.8(23(TC、 2· 16kgf))5G h與低密度聚乙烯（東曹股份有限公司製： Petrothene209,熔融流動速率、2 i6kgD)5〇 伤的此。物作為表面層形成材料以外，與實施例η同樣操 作’知到積層膜（11)。表面層的厚度為2哗，基材層的厚度 為38μιη ’平滑層的厚度為7叫。對所得積層膜（U)的評價 結果如表3所示。 [實施例17] 作為表面層㈣材料、基材層形成材料與黏著劑層形成材 料，準備以下的化合物。 表面層形成材料：無規聚丙烯（日本聚丙烯股份有限公司 製.NOVATEC PP EG8 ;熔融流動速率（MFR)=〇 8(23〇。〇、 2.16kgf))50份、低密度聚乙烯（東曹股份有限公司製： Petrothene 209 ;熔融流動速率（MFR)==45(19〇〇c、2 16kgf))5〇 伤與長鏈烧基系剝離劑（ashio產業股份有限公司製： 099120780 48 201114593 ASHIO RESIN RA95HS(完全皂化的聚乙烯十八烧基胺基甲 酸醋系剝離劑））10份的混合物 基材層成材料：嵌段聚丙烯(SunAllomer製：PF380A) 黏著劑層..形成材料：苯乙烯-乙烯-丁烯_苯乙烯嵌段共聚物 (SEBS)(科騰聚合物公司製：g1657)75份與增黏劑（荒川化學 工業股份有限公司製：ARKONp_125)25份的混合物 藉由T字模熔融共擠出上述材料成形，得到依次具有表 面層、基材層與黏著劑層的黏著帶。表面層的厚度為 2μηι ’基材層的厚度為38μιη，黏著劑層的厚度為7μιη。對 所得黏著帶(6)的評價結果如表4所示。 [實施例18] 除了使用低密度聚乙烯（日本聚乙稀·公司製：NOVATEC LD LJ803)50份代替低密度聚乙烯（東曹股份有限公司製： Petrothene 209)50份作為表面層形成材料以外，與實施例^ 7 同樣操作’得到黏著帶(7)。表面層的厚度為2μιη，基材層 的厚度為38μιη ’黏著劑層的厚度為7μιη。對所得黏著帶(7) 的評價結果如表4所示。 [實施例19] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8)10份與低密度聚乙稀(東曹股份有限公 司製：Petrothene 209)90份的混合物代替無規聚丙烯（日本 聚丙烯股份有限公司製：NOVATEC PP EG8)50份與低密度 099120780 49 201114593 聚乙烯(東曹股份有限公司製：Pet⑽2〇9)5〇份的混合 物作為表©層形成材料以外’與實施例17同樣操作，得到 黏著帶⑻。纟面層的厚度為2陣，基材層的厚度為％阿， 黏著劑層的厚度為7陣。對所得黏著帶⑻的評價結果如表4 所示。 [實施例20] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8)20份與低密度聚乙烯（東曹股份有限公 司製：Petrothene 209)80份的混合物代替無規聚丙烯（日本 聚丙烯股份有限公司製：NOVATEC PP EG8)50份與低密度 聚乙稀（東曹股份有限公司製：Petrothene 209)50份的混合 物作為表面層形成材料以外’與實施例17同樣操作，得到 黏著帶(9)。表面層的厚度為2μηι，基材層的厚度為38μιη， 黏著劑層的厚度為7μιη。對所得黏著帶(9)的評價結果如表4 所示。 [實施例21] 除了使用無規聚丙烯（曰本聚丙烯股份有限公司製： NOVATEC PP EG8)40份與低密度聚乙稀(東曹股份有限公 司製：Petrothene 209)60份的混合物代替無規聚丙烯（日本 聚丙烯股份有限公司製：NOVATECPpEG8)50份與低密度 聚乙烯（東曹股份有限公司製：Petrothene 209)5〇份的混合 物作為表面層形成材料以外，與實施例Π同樣操作，得到 099120780 50 201114593 黏著f (10)。表面層的厚度為2卿，基材層的厚度為％网， 黏著劑層的厚度為7μιη。對所得黏著帶⑽的評價結果如表 4所示。 [比較例13] 除了使用無規聚丙烯（日本聚丙稀股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=〇 8(23〇°c、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製：Petrothene 209; melt flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) 70 parts of the mixture replaced atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC pp EG8; melt flow rate _R) = 〇 8 (23〇.〇, 2.16kgf)) 50 parts with low density polyethylene (made by Tosoh Corporation: Petrothene 2〇9; melt flow rate (MFR) = 45 (19 (rc, 2 de-milk) 5 parts) The mixture was worked up as a surface layer forming material in the same manner as in Example U to obtain a laminated film (the thickness of the surface layer was 2 μm, the thickness of the base layer was 38 μm, and the thickness of the smooth layer was 7 μm. Evaluation 099120780 47 201114593 The results are shown in Table 3. [Example 16] In addition to the use of random polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; (iv) Flow rate (mfr) = 〇 8 (23 旳, 2.16 kgf )) 40 parts of this with low-density polyethylene (Tosoh Co., Ltd. Petrothene 209 ' melt flow rate (mfr) = 45 (19 〇 (3c, 2 i6kgf)) 6 〇 h. Polypropylene (made by Nippon Polypropylene Co., Ltd.: N〇VATEC PP EG8 dynamic rate MFR)=0.8 (23 (TC, 2·16 kgf)) 5G h and low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209, melt flow rate, 2 i6 kgD) 5 〇 injured. As a surface layer forming material The laminate film (11) was obtained in the same manner as in Example η. The thickness of the surface layer was 2 Å, and the thickness of the substrate layer was 38 μm. The thickness of the smooth layer was 7. The evaluation of the obtained laminate film (U). The results are shown in Table 3. [Example 17] As the surface layer (four) material, the base material layer forming material and the adhesive layer forming material, the following compounds were prepared. Surface layer forming material: atactic polypropylene (Japanese polypropylene limited stock) Company system. NOVATEC PP EG8; melt flow rate (MFR) = 〇 8 (23 〇. 〇, 2.16kgf)) 50 parts, low density polyethylene (made by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) ==45(19〇〇c, 2 16kgf))5〇Injury and long-chain base-based stripper (made by ashio Industry Co., Ltd.: 099120780 48 201114593 ASHIO RESIN RA95HS (fully saponified polyethylene octadecylamino group) Formic acid vine stripping agent)) 10 parts of the mixture substrate Material: Block polypropylene (manufactured by SunAllomer: PF380A) Adhesive layer: Forming material: Styrene-ethylene-butylene-styrene block copolymer (SEBS) (Kelton Polymer Co., Ltd.: g1657) 75 parts A mixture of 25 parts of a tackifier (ARKONp_125, manufactured by Arakawa Chemical Co., Ltd.) was melt-co-extruded by a T-die to form an adhesive tape having a surface layer, a substrate layer and an adhesive layer in this order. The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (6) are shown in Table 4. [Example 18] In place of 50 parts of low density polyethylene (manufactured by Tosoh Corp.: Petrothene 209), 50 parts of low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., NOVATEC LD LJ803) was used as the surface layer forming material. In the same manner as in Example ^7, the adhesive tape (7) was obtained. The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μm. The thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (7) are shown in Table 4. [Example 19] A mixture of 10 parts of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8) and 90 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) was used instead of the random Polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8) 50 parts and low density 099120780 49 201114593 Polyethylene (made by Tosoh Corporation: Pet(10)2〇9) 5 parts mixture as a surface layer forming material In the same manner as in Example 17, an adhesive tape (8) was obtained. The thickness of the kneading layer is 2 arrays, the thickness of the base layer is %, and the thickness of the adhesive layer is 7 arrays. The evaluation results of the obtained adhesive tape (8) are shown in Table 4. [Example 20] A mixture of 20 parts of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8) and 80 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) was used instead of random polymerization. A mixture of 50 parts of propylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8) and 50 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) as a surface layer forming material was operated in the same manner as in Example 17. , get the adhesive tape (9). The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (9) are shown in Table 4. [Example 21] A mixture of 40 parts of atactic polypropylene (manufactured by Sakamoto Polypropylene Co., Ltd.: NOVATEC PP EG8) and 60 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) was used instead of 50 parts of a polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATECPpEG8) and a mixture of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) were used as a surface layer forming material, and were operated in the same manner as in Example Π. , get 099120780 50 201114593 Adhesive f (10). The thickness of the surface layer was 2 Å, the thickness of the substrate layer was % mesh, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (10) are shown in Table 4. [Comparative Example 13] In addition to the use of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇8 (23 ° ° C, 2.16 kgf)) 50 parts and low density polyethylene (Dong Cao Co., Ltd.:

Petr〇thene 217;炫融流動速率（MFR)=4.5(19(TC、2.16kgf))5〇 份的混合物代替無規聚丙烯（日本聚丙稀股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=0.8(23〇〇C、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製：Petr〇thene 217; smelting flow rate (MFR) = 4.5 (19 (TC, 2.16 kgf)) 5 parts mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate ( MFR)=0.8 (23〇〇C, 2.16kgf)) 50 parts and low density polyethylene (made by Tosoh Corporation):

Petr〇thene 209 ;熔融流動速率（MFR)=45(190°C、2.16kgf))50 份的混合物作為表面層形成材料以外，與實施例n同樣操 作’得到積層膜(C8)。表面層的厚度為2μηι，基材層的厚度 為38μΠ1 ’平滑層的厚度為7μιη。對所得積層膜(C8)的評價 結果如表3所示。 •[比較例14] • 除了使用無規聚丙烯（SunAllomer股份有限公司製：Petr〇thene 209; melt flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) 50 parts of the mixture was treated as a surface layer forming material in the same manner as in Example n to obtain a laminated film (C8). The thickness of the surface layer was 2 μm, and the thickness of the substrate layer was 38 μΠ 1 '. The thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C8) are shown in Table 3. • [Comparative Example 14] • In addition to the use of atactic polypropylene (made by SunAllomer Co., Ltd.:

PC630A ;熔融流動速率(MFR)=7.5(230°C、2.16kgf))50 份與 低密度聚乙烯（日本聚乙烯公司製：NOVATEC LD LC720 ; 熔融流動速率(MFR)=9.4(190°C、2.16kgf))50份的混合物代 替無規聚丙烯（日本聚丙烯股份有限公司製：NOVATEC PP 099120780 51 201114593 EG8 ;熔融流動速率（MFR)=〇 8(23(rc、2 16kgf))5〇 份與低 禮、度聚乙烯（東曹股份有限公司製：petr〇thene 209 ;炫融流 動速率（MFR)-45(190°C、2.16kgf))50份的混合物作為表面 層形成材料以外，與實施例u同樣操作，得到積層膜(C9)。 表面層的厚度為2μηι，基材層的厚度為38μηι，平滑層的厚 度為7μηι。對所得積層膜(C9)的評價結果如表3所示。 [比較例15] 除了使用無規聚丙烯（SunA11〇mer股份有限公司製： PF433M ;熔融流動速率(MFR)=2 〇(23(rc、2 16kgf))5〇 份與 低密度聚乙烯（日本聚乙烯股份有限公司製：n〇VATEc lD LC720 ;熔融流動速率（Mfr)=9 4(19〇<t、2 16kgf))5〇 份的 混合物代替無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=〇 8(23〇<5(：、 2.16kgf))50份與低密度聚乙烯（東曹股份有限公司製： Petrothene 209 ;熔融流動速率(MFR)=45〇9(rc、2 i6kgf))5〇 份的混合物作為表面層形成材料以外’與實施例u同樣操 作’知到積層膜(C1G)。表面層的厚度為2μπ1，基材層的厚 度為38μηι’平滑層的厚度為—。對所得積層膜η⑺的評 價結果如表3所示。 [比較例16] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC pp EG8 ;熔融流動速率（MFR)=〇 8(23〇£>c、 099120780 52 201114593 2_16kgf))50份與低密度聚乙烯（曰本聚乙稀公司製： NOVATEC LD LC720 ;溶融流動速率（MFR)=9.4(190°C、 2.16kgf))50份的混合物代替無規聚丙烯（日本聚丙烯股份有 限公司製：NOVATEC PP EG8 ;熔融流動速率 (MFR)=0,8(230°C、2.16kgf))50份與低密度聚乙烯（東曹股份 有限公司製：Petrothene 209 ;炼融流動速率 (MFR)=45(190°C、2.16kgf))50份的混合物作為表面層形成 材料以外，與實施例11同樣操作，得到積層膜(C11”表面 層的厚度為2μιη，基材層的厚度為38μιη，平滑層的厚度為 7μιη。對所得積層膜(C11)的評價結果如表3所示。 [比較例17] 除了使用無規聚丙烯（SunAllomer股份有限公司製： PB222A ;熔融流動速率(MFR)=0.8(23(TC、2.16kgf})50 份與 低密度聚乙烯（日本聚乙烯公司製：NOVATEC LD LC720 ; 熔融流動速率(MFR)=9.4(190°C、2.16kgf))50份的混合物代 替無規聚丙烯（日本聚丙烯股份有限公司製：NOVATEC PP EG8 ;熔融流動速率(MFR)=0_8(23(TC、2_16kgf))50 份與低 岔度聚乙焊（東曹股份有限公司製：Petrothene 209 ;溶融流 動速率（MFR)=45(190°C、2.16kgf))5〇份的混合物作為表面 層形成材料以外’與實施例11同樣操作，得到積層膜 (C12)。表面層的厚度為2μιη ’基材層的厚度為38μιη，平滑 層的厚度為7μιη。對所得積層膜(C12)的評價結果如表3所 099120780 53 201114593 示。 [比較例18] 除了使用無規聚丙烯（日本聚丙婦股份有限公司製： NOVATEC PP EG8，炼融流動速率（mfr)=〇 8(23〇°c、 2.16kgf))50份與低也、度聚乙烯（日本聚乙稀股份有限公司 製.NOVATEC LD LC701 ;炫融流動速率(1^0^)=14(1901、 2.16kgf))50份的混合物代替無規聚丙烯（日本聚丙烯股份有 限公司製：NOVATEC PP EG8 ;熔融流動速率 (MFRH).8(2.30°C、2.16kgf))5〇份與低密度聚乙烯(東曹股份 有限公司製：Petrothene 209 ;熔融流動速率 (MFR)=45(19〇C、2.16kgf))50份的混合物作為表面層形成 材料以外，與實施例11同樣操作，得到積層膜(C13^表面 層的厚度為2μηι，基材層的厚度為38μιη，平滑層的厚度為 7μηΊ。對所得積層膜(C13)的評價結果如表3所示。 [比較例19] 除了使用無規聚丙烯（日本聚丙烯股份有限公司製： NOVATEC PP EG8 ;熔融流動速率（MFR)=〇 8(23(rc、 2.16kgf))lGG份代替無規聚丙烯（日本聚丙稀股份有限公司 衣.NOVATEC PP EG8 ;炫融流動速率(MFR)=〇 8(23〇°c、 2.16kgf))5G #與低密度聚乙烯（東曹股份有限公司製：PC630A; melt flow rate (MFR) = 7.5 (230 ° C, 2.16 kgf)) 50 parts and low density polyethylene (made by Nippon Polyethylene Co., Ltd.: NOVATEC LD LC720; melt flow rate (MFR) = 9.4 (190 ° C, 2.16kgf)) 50 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP 099120780 51 201114593 EG8; melt flow rate (MFR) = 〇8 (23 (rc, 2 16kgf)) 5 parts And a mixture of 50 parts of a low-grade, polyethylene (a product of Tosoh Co., Ltd.: petr〇thene 209; a flow rate (MFR)-45 (190 ° C, 2.16 kgf)) as a surface layer forming material, Example u In the same manner, a laminated film (C9) was obtained. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C9) are shown in Table 3. [Comparative Example 15] In addition to the use of atactic polypropylene (manufactured by SunA11 〇mer Co., Ltd.: PF433M; melt flow rate (MFR) = 2 〇 (23 (rc, 2 16 kgf)) 5 parts and low density polyethylene ( Made by Nippon Polyethylene Co., Ltd.: n〇VATEc lD LC720; melt flow rate (Mfr)=9 4 (19〇<t , 2 16kgf)) 5 parts mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇 8 (23 〇 < 5 (:, 2.16 kgf)) 50 parts of a mixture with low density polyethylene (manufactured by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) = 45 〇 9 (rc, 2 i6 kgf)) as a surface layer forming material u, the same operation was carried out to find the laminated film (C1G). The thickness of the surface layer was 2 μπ1, and the thickness of the substrate layer was 38 μm. The thickness of the smooth layer was -. The evaluation results of the obtained laminated film η (7) are shown in Table 3. Example 16] In addition to the use of atactic polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC pp EG8; melt flow rate (MFR) = 〇8 (23〇>c, 099120780 52 201114593 2_16kgf)) 50 parts and low density Polyethylene (manufactured by Sakamoto Polyethylene Co., Ltd.: NOVATEC LD LC720; melt flow rate (MFR) = 9.4 (190 ° C, 2.16 kgf)) 50 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 0, 8 (230 ° C, 2.16 kgf)) 50 parts In the same manner as in Example 11, except that a mixture of 50 parts of low density polyethylene (manufactured by Tosoh Corporation: Petrothene 209; smelting flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) was used as the surface layer forming material. The operation revealed that the thickness of the surface layer of the laminated film (C11) was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C11) are shown in Table 3. [Comparative Example 17] In addition to atactic polypropylene (manufactured by Sun Allomer Co., Ltd.: PB222A; melt flow rate (MFR) = 0.8 (23 (TC, 2.16 kgf)) 50 parts and low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd.) :NOVATEC LD LC720 ; melt flow rate (MFR) = 9.4 (190 ° C, 2.16 kgf)) 50 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) =0_8 (23 (TC, 2_16kgf)) 50 parts and low-twisted polyethylene welding (made by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) 5 parts The mixture was treated as the surface layer forming material in the same manner as in Example 11 to obtain a laminated film (C12). The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation result of C12) is shown in Table 3, 099120780 53 201114593. [Comparative Example 18] In addition to the use of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8, the smelting flow rate (mfr) = 〇 8 (23 〇°c, 2.16kgf)) 50 parts with low grade polyethylene (Japan) NOVATEC LD LC701; smelting flow rate (1^0^) = 14 (1901, 2.16kgf)) 50 parts of the mixture instead of atactic polypropylene (made by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFRH).8 (2.30 ° C, 2.16 kgf)) 5 parts and low density polyethylene (made by Tosoh Corporation: Petrothene 209; melt flow rate (MFR) = 45 (19 〇 C In the same manner as in Example 11, except that the mixture of 50 parts of the mixture was used as the surface layer forming material, a laminate film was obtained (the thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μηΊ). The evaluation results of the obtained laminated film (C13) are shown in Table 3. [Comparative Example 19] A random polypropylene (manufactured by Nippon Polypropylene Co., Ltd.: NOVATEC PP EG8; melt flow rate (MFR) = 〇 8) was used. (23 (rc, 2.16kgf)) lGG parts instead of atactic polypropylene (Japan Polypropylene Co., Ltd. clothes. NOVATEC PP EG8; slick flow rate (MFR) = 〇 8 (23 〇 ° c, 2.16kgf)) 5G #与低密度聚乙烯 (Dong Cao Co., Ltd.:

Petr〇thene 209 ;熔融流動速率（MFR)=45(190°C、2.16kgf))50 伤的此σ物作為表面層形成材料以外，與實施例u同樣操 099120780 54 201114593 作，得到積層膜(C14)。表面層的厚度為2μηι，基材層的厚 度為38μιη，平滑層的厚度為7μη1。對所得積層膜(C14)的評 價結果如表3所示。 [比較例20] 除了使用低密度聚乙烯（東曹股份有限公司製：Petr〇thene 209 ;熔融流動速率（MFR)=45(19〇t：、2 16kgf))1〇〇 份代替 無規聚丙烯（曰本聚丙烯股份有限公司製·. N〇VATEC pp EG8 ;熔融流動速率（MFR)=〇 8(23(rc、2魔叻)5〇份與低 後度t乙稀（東曹股份有限公司製：petr〇thene 209 ;溶融流 動速率（MFR)=45(190t：、2.16kgf))50份的混合物作為表面 層形成材料以外，與實施例n同樣操作，得到積層膜 (C15)。表面層的厚度為2μπι，基材層的厚度為38μπι，平滑 層的厚度為7μιη。對所得積層膜(C15)的評價結果如表3所 示。 [比較例21] 除了使用低密度聚乙烯（東曹股份有限公司製·· Petr〇thene > 217)50份代替使用低密度聚乙烯（東曹股份有限公司製： . Petr〇thene 209)50份作為表面層形成材料以外，與實施例17 同樣操作’得到黏著帶(C6)。表面層的厚度為2ym，基材層 的厚度為38μπι ’黏著劑層的厚度為7μπι。對所得黏著帶(C6) 的評價結果如表4所示。 [比較例22] 099120780 55 201114593 除了使用無規聚丙稀（SunAllomer股份有限公司製： PC630A)代替無規聚丙烯（曰本聚丙稀股份有限公司製： NOVATEC PP EG8)50份、且使用低密度聚乙烯（日本聚乙烯 股份有限公司製：NOVATEC LD LC720)代替低密度聚乙烯 (東曹股份有限公司製：Petrothene 209)作為表面層形成材料 以外’與實施例17同樣操作，得到黏著帶(C7)。表面層的厚 度為2μιη ’基材層的厚度為38μηι，黏著劑層的厚度為7μιη。 對所得黏著帶(C7)的評價結果如表4所示。 [比較例23] 除了使用低密度聚乙烯（日本聚乙烯股份有限公司製： NOVATEC LD LC720)50份代替低密度聚乙稀(東曹股份有 限公司製：Petrothene 209)50份作為表面層形成材料以外， 與實施例17同樣操作，得到黏著帶(C8)。表面層的厚度為 2μιη，基材層的厚度為38μιη ’黏著劑層的厚度為7μη^對 所得黏著帶(C8)的評價結果如表4所示。 [比較例24] 除了使用低在、度聚乙稀（日本聚乙稀股份有限公司製： NOVATEC LD LC701)50份代替低密度聚乙浠（東曹股份有 限公司製：Petrothene 209)50份作為表面層形成材料以外， 與貫施例17同樣操作’得到黏著帶(C9)。表面層的厚度為 2μηι，基材層的厚度為38μιη，黏著劑層的厚度為7μιη。對 所得黏著帶(C9)的評價結果如表4所示。 099120780 56 201114593 【s 實施例16 I NOVATEC PP EG8 ΟΟ <=> Petrothene 209 LO 40:60 LD LC720 03 LCJ CO cd ς〇 73.9 lo 1—^ LO 1—Η 辑 NOVATEC PP EG8 οο <=> Petrothene 209 m 呀 30:70 cn 寸’ <Z5 LO 1—^ ◦· 70.9 ς〇 CO 實施例14 NOVATEC PP EG8 00 czJ Petrothene 209 in 20:80 卜 LfS 却 卜 LO 56.6 OJ 05 CZ5 實施例13 NOVATEC PP EG8 οο ο* Petrothene 209 LO 寸 10:90 NOVATEC ： 卜 CO CD <=> (N1 CO CO CZ> 實施例12 NOVATEC PP EG8 οο 〇· NOVATEC LD LJ803 OJ OJ 50:50 〇〇 LO C- -1.1 CD 1.04 45) NOVATEC PP EG8 οο CD Petrothene 209 LO 50:50 CO iri 卜 -0.9 70.8 J2! 商品名 MFR(g/10 分鐘） 商品名 f o ci tO 商品名 S 荖 Η € Ul^ Q Η -s € Μ /-~N € 1 € 荃 Μ 1 霧度值(％) 1 1 iT ! 聚丙烯 低密度聚乙烯 表面層 「平滑層1 比車交例20 1 1 1 Petrothene 209 LO 呀 0:100 NOVATEC LD LC720 LO CO 64.3 29.2 οά 0.43 比較例19 NOVATEC PP EG8 〇〇 1 1 100:0 45.5 75.2 29.7 13.0 0.72 比較例18 NOVATEC PP EG8 οο CZ5 NOVATEC LD LC701 50:50 05 寸· 42.7 37.8 41.2 0.86 比較例17 PB222A οο c> NOVATEC LD LC720 寸 50:50 50.9 CO 33.9 0. 76 比較例16 NOVATEC PP EG8 οο ◦’ NOVATEC LD LC720 呀 50:50 <3> LO 33.0 〇〇 OJ 36.8 CO 〇〇 CZ5 比較例15 PF433M ο oi j NOVATEC LD 1 LC720 crJ 50:50 20.1 〇 CO 〇〇 62.9 13.5 (Μ 比較例14 PC630A 1X3 卜· NOVATEC LD LC720 CTS 50:50 18.7 81.7 63.0 11.5 0.52 fcb$交例13 NOVATEC PP EG8 ΟΟ ο Petrothene 217 LO 呀· 50:50 卜 62.2 57.5 24.2 CO 商品名 /—S ο δ 商品名 姻 ! ιΟ 商品名 害 € ♦ S' 軎 凾 € 圖像清晰度的差[寬度方向-長度方向] C%) 霧度值⑻ 1 ! V0 < 1 聚丙烯 低密度聚乙 烯 表面 層 平滑 層 IS 0^0-660 r. 201114593 實施例21 NOVATEC ΡΡ EG8 〇〇 c=> Petrothene 209 40:60 佘 LO 〇〇 1 " < d 1 /-"N 垒 LO Sw/ CD 〇 LO CO cd OJ t—H 寸 〇 1.53 實施例20 NOVATEC ΡΡ EG8 oo c> Petrothene 209 20:80 〇〇 LO to Q oo 寸· 51.4 C3 實施例19 NOVATEC ΡΡ EG8 oo c=> Petrothene 209 10:90 〇〇 CO 10.5 卜 CO 40.2 CO C3 實施例18 NOVATEC ΡΡ EG8 oo NOVATEC LD LJ803 50:50 σ> LO -1.0 60.3 1.01 1 實施例Π NOVATEC ΡΡ EG8 oo <z> Petrothene 209 50:50 卜 LO CO cp 65.8 ·Η 商品名 AM ; c i i w Cd 商品名 1 〇 'bb 聚丙烯:低密度聚乙烯 商品名 /-"N 荃 S ιιφΐ 寬度方向的圖像清晰度（％) 次 s—/ 1 1 € ιιψί 1 荃 @ 霧度值⑻ 1 1 V0 聚丙烯 低密度聚乙 烯 表面層 黏著劑層 :比較例24 NOVATEC ΡΡ EG8 〇〇 cz> NOVATEC LD LC701 50:50 9 g r- 4 cu 1 CO 寸· 43.7 39.1 35.7 § C3 比較例23 NOVATEC ΡΡ EG8 oo 〇· NOVATEC LD LC720 寸 cri 50:50 CO t—Η LO CO 30.3 31.3 0. 79 比較例22 1 PC630A 卜· NOVATEC LD 1 LC720 寸 cr! 50:50 1 f L〇 L〇 CO o 19.6 82.5 ! 62.9 〇〇 <Ζ5 0.49 比較例21 NOVATEC ΡΡ EG8 oo ο Petrothene 217 L〇 — 50:50 寸· 寸 LO CO 60.5 20.3 8 <〇 商品名 S 茶 ο 1 < 商品名 1 4 ci 敦 tO ve 丨 商品名 s s § 画 Ul^ 寬度方向的圖像清晰度（％) δ r—Ί ιιψί 1 s * Η 霧度值⑻ 1 I V0 % J 聚丙烯 低密度聚乙烯 表面層 i黏著劑層1 001°0°°ΖΌΖΙ660 201114593 由表1〜表4可以明瞭，本發明的積層膜與黏著帶的長度方向 的圖像清晰度與寬度方向的圖像清晰度之差的絕對值小。另 外，表面層非常薄，因此對積層膜或黏著帶整體的機械物性不 > 造成影響。 (產業上之可利用性） ' 本發明的積層膜與黏著帶可在電子零件製造用、構造用、汽 • 車用等方面，廣泛應用於例如保護用途、外觀調整用途、裝飾 用途、標籤用途等。 【圖式簡單說明】 圖1為本發明的較佳實施形態的積層膜的示意剖面圖。 圖2為本發明的較佳實施形態的黏著帶的示意剖面圖。 【主要元件符號說明】 1 基材層 2 表面層 10 積層膜 20 黏著劑層 100 黏著帶 099120780 59Petr〇thene 209; melt flow rate (MFR) = 45 (190 ° C, 2.16 kgf)) 50 Å of this sigma was used as a surface layer forming material, and the same procedure as in Example u was carried out, 099120780 54 201114593, to obtain a laminated film ( C14). The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μη. The evaluation results of the obtained laminated film (C14) are shown in Table 3. [Comparative Example 20] In place of random polymerization, a low-density polyethylene (manufactured by Tosoh Corporation: Petr〇thene 209; melt flow rate (MFR) = 45 (19 〇t:, 2 16 kgf)) was used. Propylene (manufactured by Sakamoto Polypropylene Co., Ltd. · N〇VATEC pp EG8; Melt Flow Rate (MFR) = 〇8 (23 (rc, 2 konjac) 5 〇 and low post-t ethethylene (Dongcao) A laminate film (C15) was obtained in the same manner as in Example n except that 50 parts of a mixture was prepared as a surface layer forming material. The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the smooth layer was 7 μm. The evaluation results of the obtained laminated film (C15) are shown in Table 3. [Comparative Example 21] In addition to the use of low density polyethylene ( Tosoh Co., Ltd., Petr 〇 ene 217) 50 parts instead of 50 parts of low-density polyethylene (manufactured by Tosoh Corp.: Petr〇thene 209) as a surface layer forming material, and Example 17 The same operation 'gets the adhesive tape (C6). The thickness of the surface layer is 2 μm, the thickness of the substrate layer The thickness of the adhesive layer of 7 μm was 7 μm. The evaluation results of the obtained adhesive tape (C6) are shown in Table 4. [Comparative Example 22] 099120780 55 201114593 In addition to the use of random polypropylene (manufactured by SunAllomer Co., Ltd.: PC630A) 50 parts of atactic polypropylene (manufactured by Sakamoto Polypropylene Co., Ltd.: NOVATEC PP EG8), and low-density polyethylene (NOVATEC LD LC720, manufactured by Nippon Polyethylene Co., Ltd.) was used instead of low-density polyethylene (Tosoh Co., Ltd.) Company: Petrothene 209) In the same manner as in Example 17, except for the surface layer forming material, an adhesive tape (C7) was obtained. The thickness of the surface layer was 2 μm. The thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C7) are shown in Table 4. [Comparative Example 23] In place of low density polyethylene (East), 50 parts of low density polyethylene (manufactured by Nippon Polyethylene Co., Ltd.: NOVATEC LD LC720) was used. An adhesive tape (C8) was obtained in the same manner as in Example 17 except that 50 parts of a surface layer forming material was produced by Cao Co., Ltd. as a surface layer forming material. The thickness of the surface layer was 2 μm. The thickness of the base material layer was 38 μm. The thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C8) are shown in Table 4. [Comparative Example 24] In addition to the use of low-degree, polyethylene (Japan Poly Manufactured by Ethylene Co., Ltd.: NOVATEC LD LC701) 50 parts instead of low-density polyethylene (manufactured by Tosoh Corp.: Petrothene 209) 50 parts as the surface layer forming material, the same operation as in Example 17 was carried out to obtain an adhesive tape. (C9). The thickness of the surface layer was 2 μm, the thickness of the substrate layer was 38 μm, and the thickness of the adhesive layer was 7 μm. The evaluation results of the obtained adhesive tape (C9) are shown in Table 4. 099120780 56 201114593 [s Example 16 I NOVATEC PP EG8 ΟΟ <=> Petrothene 209 LO 40:60 LD LC720 03 LCJ CO cd ς〇73.9 lo 1—^ LO 1—Η NOVATEC PP EG8 οο <=&gt Petrothene 209 m 呀 30:70 cn inch ' <Z5 LO 1—^ ◦· 70.9 ς〇CO Example 14 NOVATEC PP EG8 00 czJ Petrothene 209 in 20:80 卜 LfS 卜巴 LO 56.6 OJ 05 CZ5 Example 13 NOVATEC PP EG8 οο ο* Petrothene 209 LO inch 10:90 NOVATEC : Bu CO CD <=> (N1 CO CO CZ> Example 12 NOVATEC PP EG8 οο 〇 · NOVATEC LD LJ803 OJ OJ 50:50 〇〇LO C - -1.1 CD 1.04 45) NOVATEC PP EG8 οο CD Petrothene 209 LO 50:50 CO iri Bu-0.9 70.8 J2! Product name MFR(g/10 min) Product name fo ci tO Trade name S 荖Η € Ul^ Q Η -s € Μ /-~N € 1 € 荃Μ 1 Haze value (%) 1 1 iT ! Polypropylene low-density polyethylene surface layer "Smooth layer 1 than car exchange example 20 1 1 1 Petrothene 209 LO 呀0: 100 NOVATEC LD LC720 LO CO 64.3 29.2 οά 0.43 Comparative Example 19 NOVATEC PP EG8 〇〇1 1 100:0 45.5 75.2 29.7 13.0 0.72 ratio Example 18 NOVATEC PP EG8 οο CZ5 NOVATEC LD LC701 50:50 05 inch · 42.7 37.8 41.2 0.86 Comparative Example 17 PB222A οο c> NOVATEC LD LC720 inch 50:50 50.9 CO 33.9 0. 76 Comparative Example 16 NOVATEC PP EG8 οο ◦' NOVATEC LD LC720 呀50:50 <3> LO 33.0 〇〇OJ 36.8 CO 〇〇CZ5 Comparative Example 15 PF433M ο oi j NOVATEC LD 1 LC720 crJ 50:50 20.1 〇CO 〇〇62.9 13.5 (Μ Comparative Example 14 PC630A 1X3 卜· NOVATEC LD LC720 CTS 50:50 18.7 81.7 63.0 11.5 0.52 fcb$Example 13 NOVATEC PP EG8 ΟΟ ο Petrothene 217 LO 呀· 50:50 Bu 62.2 57.5 24.2 CO Trade name /—S ο δ Product name marriage! ιΟ Product name害€ ♦ S' 軎凾€ Image image difference [width direction - length direction] C%) Haze value (8) 1 ! V0 < 1 Polypropylene low density polyethylene surface layer smooth layer IS 0^0-660 r. 201114593 Example 21 NOVATEC ΡΡ EG8 〇〇c=> Petrothene 209 40:60 佘LO 〇〇1 "< d 1 /-"N barrier LO Sw/ CD 〇LO CO cd OJ t-H inch 〇1.53 Example 20 NOVATEC ΡΡ EG8 oo c> Petrothene 209 20:80 〇 〇LO to Q oo inch·51.4 C3 Example 19 NOVATEC ΡΡ EG8 oo c=> Petrothene 209 10:90 〇〇CO 10.5 Bu CO 40.2 CO C3 Example 18 NOVATEC ΡΡ EG8 oo NOVATEC LD LJ803 50:50 σ> LO -1.0 60.3 1.01 1 Example Π NOVATEC ΡΡ EG8 oo <z> Petrothene 209 50:50 卜LO CO cp 65.8 ·Η Product name AM ; ciiw Cd trade name 1 〇'bb Polypropylene: Low density polyethylene trade name / -"N 荃S ιιφΐ Image sharpness in the width direction (%) times s—/ 1 1 € ιιψί 1 荃@ Haze value (8) 1 1 V0 Polypropylene low-density polyethylene surface layer adhesive layer: Comparative Example 24 NOVATEC ΡΡ EG8 〇〇cz> NOVATEC LD LC701 50:50 9 g r- 4 cu 1 CO inch · 43.7 39.1 35.7 § C3 Comparative Example 23 NOVATEC ΡΡ EG8 oo 〇 · NOVATEC LD LC720 inch cri 50:50 CO t—Η LO CO 30.3 31.3 0. 79 Comparative Example 22 1 PC630A Bu·NOVATEC LD 1 LC720 inch cr! 50:50 1 f L〇L〇CO o 19.6 82.5 ! 62.9 〇〇<Ζ5 0.49 Comparative Example 21 NOVATEC ΡΡ EG8 oo ο Petrothene 217 L〇 — 50:50 inches · inch LO CO 60.5 20.3 8 <〇商Name S Tea ο 1 < Product Name 1 4 ci Dun tO ve 丨 Trade name ss § Painting Ul^ Image clarity in the width direction (%) δ r—Ί ιιψί 1 s * Η Haze value (8) 1 I V0 % J Polypropylene Low Density Polyethylene Surface Layer i Adhesive Layer 1 001°0°°ΖΌΖΙ660 201114593 It can be understood from Table 1 to Table 4 that the image clarity and width direction of the laminated film and the adhesive tape of the present invention are in the longitudinal direction. The absolute value of the difference in image sharpness is small. In addition, since the surface layer is very thin, it does not affect the mechanical properties of the laminated film or the entire adhesive tape. (Industrial Applicability) The laminated film and the adhesive tape of the present invention can be widely used for, for example, protection applications, appearance adjustment applications, decorative purposes, and label applications in the manufacture of electronic components, structures, and automobiles. Wait. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a laminated film according to a preferred embodiment of the present invention. Figure 2 is a schematic cross-sectional view of an adhesive tape in accordance with a preferred embodiment of the present invention. [Main component symbol description] 1 Substrate layer 2 Surface layer 10 Laminated film 20 Adhesive layer 100 Adhesive tape 099120780 59

Claims (1)

201114593 七、申請專利範圍： 1. 一種積層膜，係具有基材層和表面層者， 該基材層包含熱可塑性樹脂， 該積層膜的長度方向的圖像清晰度與該積層膜的寬度方向的 圖像清晰度之差的絕對值為10%以下。 2. 如申請專利範圍第1項之積層膜，其中，長度方向的圖像 清晰度為20%以下，寬度方向的圖像清晰度為20%以下。 3. 如申請專利範圍第1項之積層膜，其中，霧度值為 30%〜80%。 4. 如申請專利範圍第1項之積層膜，其中，上述表面層的算 術平均粗糙度Ra為0.5μιη〜2.0μιη。 5. 如申請專利範圍第1項之積層膜，其中，上述表面層的厚 度為 2μιη〜ΙΟμηι。 6. 如申請專利範圍第1項之積層膜，其中，上述表面層在示 差掃描熱量測定中具有兩點以上的熔融溫度Tm。 7. 如申請專利範圍第1項之積層膜，其中，該表面層包含聚 乙稀和乙烯-醋酸乙稀酯共聚物。 8. 如申請專利範圍第7項之積層膜，其中，上述聚乙稀與上 述乙烯-醋酸乙烯酯共聚物的重量比為聚乙烯：乙烯-醋酸乙烯酯 共聚物=20:80〜80:20。 9. 如申請專利範圍第7項之積層膜，其中，上述乙稀-醋酸乙 烯酯共聚物中來自醋酸乙烯酯的構造單位的含量比例為10重 099120780 60 201114593 量％以上。 10. 如申請專利範圍第7項之積層膜，其中，上述聚乙烯的熔 融流動速率為8g/10分鐘〜100g/10分鐘。 11. 如申請專利範圍第7項之積層膜，其中，上述乙稀-醋酸乙 烯酯共聚物的熔融流動速率為0.1g/10分鐘〜7g/10分鐘。 12. 如申請專利範圍第1項之積層膜，其中，上述表面層包含 * 聚乙浠和丙稀系聚合物。 13. 如申請專利範圍第12項之積層膜，其中，上述聚乙烯與 上述丙稀系聚合物的重量比為聚乙烯：丙烯系聚合物 = 10:90〜90:10。 14. 如申請專利範圍第12項之積層膜，其中，上述聚乙稀的 熔融流動速率為8g/10分鐘〜100g/10分鐘。 15. 如申請專利範圍第12項之積層膜，其中，上述丙烯系聚 合物的熔融流動速率為0.1g/10分鐘〜7g/10分鐘。 16. —種黏著帶，係在申請專利範圍第1項之積層膜的單側上 具有黏著劑層。 * Π·如申請專利範圍第16項之黏著帶，其中，長度方向的圖 * 像清晰度與寬度方向的圖像清晰度之差的絕對值為10%以下。 18. 如申請專利範圍第16項之黏著帶，其中，長度方向的圖 像清晰度為20%以下，寬度方向的圖像清晰度為20%以下。 19. 如申請專利範圍第16項之黏著帶，其中，霧度值為 30%〜80%。 099120780 61 201114593 ，上述表面層含 20.如申請專利範圍第16項之黏著帶，其中 有長鏈烷基系剝離劑。 099120780 62201114593 VII. Patent Application Range: 1. A laminated film comprising a substrate layer and a surface layer, the substrate layer comprising a thermoplastic resin, the image clarity in the longitudinal direction of the laminated film and the width direction of the laminated film The absolute value of the difference in image sharpness is 10% or less. 2. The laminated film according to the first aspect of the patent application, wherein the image clarity in the longitudinal direction is 20% or less, and the image clarity in the width direction is 20% or less. 3. For the laminated film of claim 1, wherein the haze value is 30% to 80%. 4. The laminated film according to claim 1, wherein the surface layer has an arithmetic mean roughness Ra of from 0.5 μm to 2.0 μm. 5. The laminated film of claim 1, wherein the surface layer has a thickness of 2 μm to ΙΟμηι. 6. The laminated film of claim 1, wherein the surface layer has a melting temperature Tm of two or more points in the differential scanning calorimetry. 7. The laminate film of claim 1, wherein the surface layer comprises a polyethylene and an ethylene-vinyl acetate copolymer. 8. The laminate film of claim 7, wherein the weight ratio of the polyethylene to the ethylene-vinyl acetate copolymer is polyethylene: ethylene-vinyl acetate copolymer = 20: 80 to 80: 20 . 9. The laminate film of claim 7, wherein the ethylene-vinyl acetate copolymer has a content ratio of structural units derived from vinyl acetate of 10% by weight of 099120780 60 201114593 or more. 10. The laminate film of claim 7, wherein the polyethylene has a melt flow rate of from 8 g/10 min to 100 g/10 min. 11. The laminate film of claim 7, wherein the ethylene-vinyl acetate copolymer has a melt flow rate of from 0.1 g/10 min to 7 g/10 min. 12. The laminate film of claim 1, wherein the surface layer comprises *polyethylene phthalate and propylene polymer. 13. The laminate film of claim 12, wherein the weight ratio of the polyethylene to the propylene polymer is polyethylene: propylene polymer = 10:90 to 90:10. 14. The laminate film of claim 12, wherein the polyethylene has a melt flow rate of from 8 g/10 min to 100 g/10 min. 15. The laminate film of claim 12, wherein the propylene-based polymer has a melt flow rate of from 0.1 g/10 min to 7 g/10 min. 16. An adhesive tape having an adhesive layer on one side of the laminated film of claim 1 of the patent application. * Π · The adhesive tape of the 16th article of the patent application, wherein the length direction image * the absolute value of the difference between the sharpness and the width of the image is 10% or less. 18. The adhesive tape of claim 16, wherein the image clarity in the longitudinal direction is 20% or less, and the image clarity in the width direction is 20% or less. 19. The adhesive tape of claim 16 wherein the haze value is 30% to 80%. 099120780 61 201114593 The above surface layer contains 20. The adhesive tape of claim 16 which has a long-chain alkyl-based release agent. 099120780 62
TW99120780A 2009-07-03 2010-06-25 Multilayer film and pressure-sensitive adhesive tape TW201114593A (en)

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JP2009158544 2009-07-03
JP2010067739A JP5412347B2 (en) 2009-07-03 2010-03-24 Laminated film and adhesive tape
JP2010067738A JP5412346B2 (en) 2009-07-03 2010-03-24 Laminated film and adhesive tape

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI823705B (en) * 2022-12-07 2023-11-21 南亞塑膠工業股份有限公司 Panel protective film and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI823705B (en) * 2022-12-07 2023-11-21 南亞塑膠工業股份有限公司 Panel protective film and method for producing the same

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