TW201139461A - Cellulose acylate film, polarizing plate and liquid crystal display - Google Patents
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201139461 六、發明說明: 【發明所屬之技術領域】 本發明是有關於一種醯化纖維素膜、使用該醯化纖維 素膜的偏光板及液晶顯示裝置。詳細而言,本發明是有關 於一種用作可改善與偏光片組合時的高溫高濕下的偏光板 财久性的偏光板保護膜的醯化纖維素膜、使用該醯化纖維 素膜的偏光板及液晶顯示裝置。 【先前技術】 液晶顯示裝置作為消耗電力小且省空間的圖像顯示裝 置’其用途逐年擴大。先前,液晶顯示裝置的較大的缺點 疋顯示圖像的視角依存性大,但垂直配向(Vertical Alignment’ VA)模式等廣視角液晶模式已得到實用化, 藉此於電視等要求高品質的圖像的市場或要求設置於室外 的市場’液晶顯示裝置的需求亦正迅速擴大。 液晶顯示裝置的基本構成是於液晶單元的兩側設置有 偏光板。上述偏光板承擔僅使固定方向的偏波面的光穿過 的作用’液晶顯示裝置的性能受到偏光板的性能的較大的 影響。偏光板一般是包含偏光片與透明保護膜的構成,上 述偏光片包含使碘或染料吸附配向而成的聚乙烯醇膜等, 上述透明保護膜是貼合於該偏光片的表背兩侧。以乙酸纖 維素為代表的醯化纖維素膜因透明性高,可容易地確保與 偏光片中所使用的聚乙稀醇的密接性,故廣泛地用作偏光 板保護膜。近年來,實際情況是於將液晶顯示裝置設置在 高溫高濕下的室外時,亦要求高品質的圖像,而要求偏光 4 201139461 板保護膜改善與偏光片組合時的高溫高濕下的偏光板耐久 性。 首先,就上述觀點而言,一般用作偏光板的保護膜的 酿化纖維素膜需要高透明性(低濁度)、良好的透濕性(不 過高且不過低)、良好的光學性能,先前是藉由添加特定的 塑化劑來調整成滿足性能。但是,作為具有代表性的塑化 劑的磷酸二苯目旨(Triphenyl Phosphate,ΤΡΡ)等鱗酸酯類 於對醢化纖維素膜進行製膜時在乾燥步驟中昇華,且附著 於製造線上的污染物落下至膜上而引起面狀故障等問題。 另外’除該問題以外,就提供環保的偏光板保護膜及其製 造方法的觀點而言’亦要求不使用顧酯作為醯化纖維辛 膜的塑化劑。 另一方面,作為可添加於醯化纖維素以外的其他改性 =素中的塑化劑,已知有各種化合物,自先前以來已知 可將醣類及其衍生物作為塑化劑而添加。例如於專利文 =中記财藉由向含該粉與解基纖維素的塑膠 物中添加作為塑化劑的半乳糖,而可提 . 械物性均優異且環保的顧_軸錢。轉度與機 =在用於光學膜用纖維素臈的塑化劑的用途中,醣 類及”何生物亦適合,於贿及其射物之中,已知 糖醋化合物關子。例如,於專散獻2中,相對於乙2 化度為59.5% (總醯基取代度約為 用源自六伽(冰_輸少5__^=被= 代而成的糖醇的醋化塑化劑。於專利文獻3中,相二= 201139461 乙醯基取代度為2.5的乙酸纖維素,使用醣類的羥基的8〇0/〇 〜99%被酯化而成的塑化劑(參照該文獻[〇〇32]、[〇115]、 [0134])。於專利文獻4中,記载有相對於總醯基取代度為 2.1〜2.7的醯化纖維素,使用將醣類的羥基全部或部分酯 化而成的塑化劑’但可理解成使用實際所使用的糖酯化合 物的羥基被100%酯化而成的塑化劑(參照該文獻例示化 合物1〜例示化合物1〇等)。於專利文獻5中,相對於總 醯基取代度為2.7〜2.95的醯化纖維素,將取代度不同的 幾種糖酯化合物混合來用作塑化劑,上述糖酯化合物是單 醣類〜二醣類的經基被部分醋化而成的糖醋化合物(參照 該文獻[0393],例示化合物3〜例示化合物6、例示化合物 9、例示化合物18,[表3]〜[表6]等)。 但是,於該些文獻中,實質上僅揭示了酯取代度比較 高的糖酯化合物的使用例,尤其於混合使用取代度不同的 幾種糖酯化合物的專利文獻5中,僅揭示了低取代度的糖 酯化合物的添加比例非常少的形態。進而,於任一文獻中, 均未記載對醯化纖維素的總醯基取代度(特別是乙醯基取 代度)的範圍與糖酯化合物的酯取代度的關係性進行過研 究的例子。即,並未揭示醢化纖維素(特別是乙酸纖維素) 的乙酿基取代度與糖酯化合物的酯取代度的最佳的組合。 另外,於該些文獻中’亦未對將所獲得的偏光板保護 膜與偏光片組合時的高溫高濕下的偏光板耐久性進行研 究。 [專利文獻1]日本專利特開平5-320418號公報 6 201139461 [專利文獻2]日本專利特開2001-247717號公報 [專利文獻3]日本專利特表2005-515285號公報 [專利文獻4]WO2007/125764號公報 [專利文獻5JW02009/031464號公報 【發明内容】 於此種狀況下’本發明者等人自代替或改良磷酸三苯 酯(TPP)等先前所使用的塑化劑的觀點出發,針對上述 專利文獻2〜專利文獻5中所記載的化合物,研究了該些 化合物與乙醯基取代度為2.7以上、未滿2.95的醯化纖維 素膜組合時所獲得的膜的物性。但是,可知當使用專利文 獻2〜專利文獻5中所$己載的南取代度的糖醋化合物時, 無法獲得透明性、透濕性及光學性能等所期望的膜物性, 與偏光片組合時的兩溫南濕下的偏光板财久性亦不充分, 而要求進一步的改善。 本發明的目的在於提供一種透明性、透濕性及光學性 能良好,可改善與偏光片組合時的高溫高濕下的偏光板耐 久性的乙酸纖維素膜。另外,本發明的目的在於提供一種 使用該醯化纖維素膜的偏光板、以及使用其的液晶顯示裝 置。 本發明者等人為了解決上述課題而努力研究的結果, 發現當使將作為塑化劑的特定的酯取代度的範圍的糖酯化 合物製成取代度不同的混合物而成者、與特定的乙醯基取 代度的範圍的醯化纖維素組合來使用時,可獲得透明性、 透濕性及光學性能良好,可改善與偏光片組合時的高溫高 7 201139461 濕下的偏光板耐久性的酿化纖維素膜。 即’上述課題是藉由以下的構成的本發明來解決。 [1] 一種醯化纖維素膜,其特徵在於:包含酯取代度 不同的多種糖酯化合物、以及醯化纖維素,上述醯化纖維 素的乙醯基取代度為2.70以上、未滿2.95,且構成上述糖 酯化合物的糖為二醣類〜四醣類,上述酯取代度不同的多 種糖酯化合物的平均酯取代度為62%〜94%,上述醯化纖 維素膜中所含有的酯取代度不同的多種糖酯化合物中,酯 取代度為75%以上的糖g旨化合物的含有率為8〇%以下,且 酯取代度為35%〜50%的糖酯化合物的含有率為5%〜 30%。 [2] 如[1]所述之醯化纖維素膜,其中上述糖酯化合物 至少含有°夫味醣環或η比喃醣環。 [3] 如[1]或[2]所述之醯化纖維素膜,其中成為上述糖 酯化合物的母核的糖是二醣類。 [4] 如[1]至[3]中任一項所述之醯化纖維素膜,其中上 述糖醋化合物具有苯曱醯基及乙醯基中的至少一者作為酯 基。 [5] 如[1]至[4]中任一項所述之醯化纖維素膜,其中上 述醯化纖維素為乙酸纖維素。 [6] 如[1]至[5]中任一項所述之醯化纖維素膜,其具有 相位差。 [7] 如[1]至[6]中任一項所述之醯化纖維素膜,其更積 層有功能性層。 8 201139461 [8]如[7]所述之醯化纖維素膜,其中上述功能性層為 硬塗層。 + [9] 一種偏光板,其特徵在於:具有偏光片、以及至 少1片如[1]至[8]中任一項所述之醯化纖維素膜。 [10] 一種液晶顯示裝置,其特徵在於:具有至少i片 如⑴至m中任-項所述之醯化纖維素膜、或如[9]所述之 偏光板。 根據本發明,可提供透明性、透濕性及光學性能良好, 可改善與偏光#組合時的㊉溫高濕下的偏光板_久性的醯 =纖維素膜。另外,藉由制本發明㈣化纖維素膜,可 提供於設置在高溫高釘的室外時亦可獲得高品質的圖像 =本土月的偏光板、以及使用其的本發明的液晶顯示置。 【實施方式】 以下對本發明的内谷進行詳細說明。以下所記載的 構成要件的制有岐基於本發_具有代紐的實施形 態來進行,但本發明並不限定於此種實施形態。再者,於 本案說明書中,「〜」是以包含其前後所記_數值作為下 限值及上限值的含義來使用。 [醯化纖維素膜] 本發明的醯化纖維素膜(以下,亦稱為本發明的膜) 的特徵在於:包含S旨取代度不同的多種糖醋化合物、以及 醯化纖維素,上述醯化纖維素的乙醯基取代度為27〇以 上、未滿2.95,且構成上述_化合物的糖為二_〜四 酿類’上述S旨取代度不同的多種_化合物的平均醋取代 201139461 度為62%〜94%,上述醯化纖維素膜中所含有的酯取代度 不同的多種糖酯化合物中,酯取代度為75〇/〇以上的糖酯化 合物的含有率為80%以下,且酯取代度為35%〜50%的糖 酯化合物的含有率為5°/。〜30〇/〇。 以下,對本發明的膜進行說明。 <醯化纖維素> 於本發明中,使用乙醯基取代度為2.70以上、未滿 2.95的醯化纖維素。若乙醯基取代度為2 7以上,則與滿 足後述的條件的糖酯化合物(例如,特定的取代度的蔗糖 苯曱酸酯等)的相容性良好,膜不易白化,故較佳。進而, 除透明性以外,透濕度或含水率亦變得良好,故較佳。另 外,偏光板耐久性或膜本身的濕熱耐久性亦變得良好,故 較佳。另一方面,若取代度未滿2.95,則光學性能明顯變 得良好,故較佳。 上述醯化纖維素的乙醯基取代度更佳為2 75〜2 9〇, 特佳為2.82〜2.87。 ’ 再者,總醯基取代度的較佳的範圍亦與上述乙醯美 代度的較佳的範圍相同。 a 再者,醯基的取代度可依據ASTM_D817 96中所a 的方法進行測定。未被醯基取代的部分通常作為羥武而$ 作為取代於纖維素的羥基上的碳原子數為2〜U 基之中,碳數為2〜22的醯基,可為脂肪族基,亦▲醯 丙基,並無特別限定,可為單一化合物,亦可為兩種=烯 201139461 的混合物。該些例如為纖維素的烧基幾基酯、烯基羰基酯 或芳香族羰基酯、芳香族烷基羰基酯等,且分別可具有進 而被取代的基。作為該些的較佳的醢基,可列舉:乙醯基、 丙醯基、丁醯基、庚醯基、己醯基、辛醯基、癸醯基、十 二醯基、十三醢基、十四酿基、十六醯基、十八醯基、異 丁醯基、第三丁醯基、環己烷羰基、油醯基、苯曱醯基、 萘基羰基、桂皮醯基等。該些之中,較佳為乙醯基、丙醯 基、丁醯基、十二醯基、十八醯基、第三丁醯基、油醯基、 本曱醯基'萘基幾基、桂皮醯基等,更佳為乙酿基、丙醯 基、丁醯基。 本發明中所使用的醯化纖維素膜就調整透濕度或含水 率的觀點而言賦予親水性,因此取代基較佳為包含乙醯基 的取代基。 另外’亦可使用混合脂肪酸醯化纖維素,作為該混合 脂肪酸醯化纖維素,具體而言,可列舉:乙酸丙酸纖維素、 乙酸丁酸纖維素。 ’ 醯化纖維素的合成方法的基本原理記載於右田等編著 的木材化學180頁〜190頁(共立出版,1968年)中。具 有代表性的合成方法是利用叛酸酐-乙酸_硫酸觸媒的液相 乙醯化法。 於獲得上述醯化纖維素時,具體而言,利用適量的乙 酸對棉絨或木漿等纖維素原料進行前處理後,投入至經預 先冷卻的敌酸化混合溶液中進行醋化,合成完全醯化纖維 素(2位、3位及6位的醯基取代度的合計大致為3 〇〇)。 11 201139461 上述㈣化混合溶液-般含有作為溶劑的乙酸、作為酉旨化 劑的叛酸if及作為觸制硫§纟。通常是以在化 量學上超過與其反朗纖維纽系統⑽存在的水分& 計的量來使用。I旨化反應結束後,為了進行纽内所殘^ 的過剩的麵if的水解及-部分自旨化觸媒的中和,而添加 中和劑(例如〶、㉟、鐵、域鋅的碳酸鹽、乙酸鹽或氧 化物)的水溶液。繼而,藉由於少量的乙醯化反應觸媒(一 般為殘存的硫酸)的存在下保持成5〇t〜9〇艽來將所獲得 的完全醯化纖維素皂化熟成,並使其變化至具有所期望的 酿基取代度及聚合度的酿化纖維素為止。於獲得所期望的 醯化纖維素的時間點使用如上所述的中和劑將系統内所 殘存的觸媒完全地中和,或者不進行中和而將醢化纖維素 溶液投入至水或稀硫酸中(或將水或稀硫酸投入至醯化纖 維素溶液中)來使醯化纖維素分離,並進行清洗及穩定化 處理等,從而可獲得上述的特定的醯化纖維素。 上述醯化纖維素的分子量以數量平均分子量(Mn)計 較佳為40000〜200000,更佳為1〇〇0〇〇〜200000。本發明 中所使用的酿化纖維素的Mw/Mn比較佳為4.0以下,更佳 為 1.4〜2.3。 於本發明中’醯化纖維素等的平均分子量及分子量分 布可使用凝膠渗透層析法(Gel Permeation Chromatography,GPC)算出數量平均分子量(Mn)、重 量平均分子量(Mw),並藉由國際公開WO2008-126535 號公報中所記載的方法計算兩者的比。 12 201139461 <糖酯化合物> 本發明的膜含有酯取代度不同的多種糖酯化合物,構 成上述糖酯化合物的糖為二醣類〜四醣類,上述酯取代度 不同的多種糖酯化合物的平均酯取代度為62%〜94%,上 述醯化纖維素膜中所含有的酯取代度不同的多種糖酯化合 物中,酯取代度為75%以上的糖酯化合物的含有率為80% 以下,且酯取代度為35%〜50%的糠酯化合物的含有率為 5%〜30% 〇 藉由將上述糖酯化合物添加於醯化纖維素膜中,可無 損光學特性的顯現性,且即便在不於延伸步驟前進行熱處 理的情況下,亦可減小總濁度及内部濁度。進而,藉由將 本發明的醯化纖維素膜用於液晶顯示裝置,可大幅度地改 良正面對比度。 -糖殘基- 上述糖酯化合物是指構成該化合物的多醣中的可取代 的基(例如羥基、羧基)的至少1個與至少一種取代基進 行酯鍵結而成的化合物。即,此處的糖酯化合物亦包括廣 義的糖竹生物類’例如亦包括葡萄糖酸之類的含有糖殘基 作為結構的化合物。即,上述糖酯化合物包括葡萄糖與羧 酸的酯體,亦包括葡萄糖酸與醇的酯體。 構成上述糖酯化合物的多醣中的可取代的基較佳為經 基。 於上述糖酯化合物中’包含源自構成糖酯化合物的多 黯的結構(以下’亦稱為糖殘基)。將上述糖殘基的每個單 13 201139461 構稱為細旨化合物的結構單元。難為上述糖醋化 :2結構單元包含π㈣縣鮮域料縣構單元, —:,有的糖殘基輕搞結構單元或七練結構單 單ί = ί構成上述糖酯時,較佳為—併包含吼 两哪、、·〇攝单兀或呋喃醣結構單元。 石山酿上ff醋化合物的糖殘基可源自五碳醣,亦可源自六 石反醣,但較佳為源自六碳醣。 〜4,上=^匕合物中所含有的結構單元的數量較佳為2 糖較上^ 3,特佳為2。即,構成上述糖醋化合物的 為ίϋ 〜四醣類,更佳為二_〜三醣類,特佳 將至中’上述糖醋化合物更佳為含有2個〜4個 單元“=Γ而成的°比喃聰結構單元或蝴結構 有2個將至少1個經基 物。成的㈣I構早兀或咬喃畴結構單元的糖醋化合 作為上述單醣或含有2個〜4個 子,例如可列舉:赤鎌、蘇糖、核糖醣类f例 ^穌糖、阿錄、阿卓糖、㈣糖、果糖、甘 =艾杜糖、半乳糖、塔雜、海驗 t :芽rr、麴二糖、黑曲黴糖、麥芽二 乳糖胺、乳糖醇、乳酮糖、蜜二糖乳糖、 葱二糖、薦糖、嚴糖素、松二糖、=草=、云香糖、海 人且一糖、纖維三糖、 201139461 二糖、龍膽二糖 '異麥芽三糖、異葡糖基麥芽糖、 麥芽三糖、甘露三糖、松三糖、潘諾糖、車前糖、棉子糖、 祐三糖:傘形糖、石蒜四糖、麥芽四糖、水蘇糖、麥芽五 糖、毛凝ί花糖、麥芽六糖、木糖醇、山梨糖醇等。 較佳為核糖、阿拉伯糖、木糖、來蘇糖、葡萄糠、果 糖、甘露糖、半乳糖、海藻糖、麥芽糖、纖維雙醣、乳糖、 荒糖ϋ素、木糖醇、山梨糖醇,更佳為阿拉伯糖、木 糖、葡萄糖、果糖、甘露糖、半乳糖、麥芽糖、纖維雙聽、 庶糖,特佳為木糖、葡練、絲、甘綠、半乳糖、麥 芽糖、纖維雙醣、蔗糖、木糖醇、山梨糖醇。 -取代基的結構- =明中所使用的上述糖s旨化合物更佳為包含可使用 的取代基,且具有由下述通式⑴所細的結構。 通式(1) (〇^VG<^\(〇^2)r 通式⑴中,G表示糖殘基,L!表示_〇·、_c〇…服13 ==1表示氫原子或一價的取代基,Rl2表示藉由 =的價的取代基。"及r分別獨立地表示〇 以上的整數,p + q + 1•與假定上述 經取代的_時的經基數相等。讀縮I構的未 同。上述G的較佳的範圍與上述糖殘基的較佳的範圍相 上述L較佳為_〇_或_c〇_,更佳為。當上述l丨為办 15 201139461 時,特佳為源自驗鍵或醋鍵的連結基,進而特佳為源自醋 鍵的連結基。 另外,當上述L1存在多個時,彼此可相同,亦可不同。 較佳為R11及R12的至少一者具有芳香環。 尤其,當上述L1為時(即,R"、Ru取代於上述 糖酯化合物中的羥基上時),上述Rn、Rlz及RU較佳為自 經取代或未經取代的醯基、經取代或未經取代的芳基、戋 者經取代絲經取代的絲、經取代或未錄代的胺基中 選擇,更佳為經取代或未經取代的醯基、經取代或未^取 代的絲、或者經取代絲經取代的芳基,特佳為未經取 代的醯基、經取代或未經取代的烷基、或者未經取代的芳 基。 另外,當上述R"、RU及Ri3分別存在多個時,彼此 可相同,亦可不同。 。。·^述P表不〇以上的整數,較佳的範圍與後述的每個 單醣單元的羥基數的較佳的範圍相同。 一較佳為上述r表示比上述G中所含有的吡喃醣結構單 元數或吱喃醣結構單元數更大的數。 上述q較佳為0。 另外,由於P + q + r與假定上述G為環狀縮醛結構的 未經取代的醣類時的羥基數相等,因此上述p、q&r的上 限值是對應於上述G的結構而一致地決定。 作為上述糖酯化合物的取代基的較佳例,可列舉:院 基(較佳為碳數為1〜22,更佳為碳數為丨〜12,特佳為碳 201139461 數為1〜8的烧基,例如曱基、乙基、丙基、經乙基、經丙 基2氰乙基、苄基等)、芳基(較佳為碳數為6〜24,更 佳為6〜18,特佳為6〜12的芳基,例如苯基、萘基)、醯 基(較佳為碳數為1〜22,更佳為碳數為2〜12,特佳為碳 數為2〜8的醯基’例如乙醯基、丙醯基、丁醯基、戊醯基、 己醯基、辛醯基、苯曱醯基、曱笨曱酿基、鄰苯二曱醯基 等)、醯胺基(較佳為碳數為i〜22,更佳為碳數為2〜12, 特佳為碳數為2〜8的醯胺,例如曱醯胺基、乙醯胺基等)、 亞胺基(較佳為碳數為4〜22,更佳為碳數為4〜12,特 佳為碳數為4〜8的醯胺基,例如琥珀醯亞胺基、酞醯亞胺 基等)其中,更佳為院基或醯基,進而更佳為曱基、乙酿 基、笨甲醯基,特佳為苯甲醯基及乙醢基中的至少一者, 進而特佳為苯甲醯基。 山作為上述糖酯化合物的獲取方法,可自商業途徑獲得 斤、化成(股份)製造、Aldrich製造等的市售品,或者可 :由對市售的碳水化合物進行已知的S旨衍生物化法(例 人i日本專利特開平8_245678號公報中所記載的方法)來 200〜 較合適的是數量平均分子量較佳為 更佳為200〜3000,特佳為250〜2000的範圍。 物列舉可於本發明中較佳地使用的上述糖輯化合 物的具體例,但本發明並不限定於以下的形態。 多二分二獨立地表示任意的取代基, ,亦可不同。ClogP值是藉由計算對於〗辛 17 201139461 醇與水的分配係數P的常用對數logP而求出的值。於 ClogP 值的計算中,使用 Daylight Chemical Information Systems公司的系統:組裝入PCModels中的CLOGP程式。 [化1] ch2or 十μ m C〇R ^ OR ] I Τ I ch2or H OR OR Η [表1] 化合物 取代基1 取代基2 分子量 種類 取代度 種類 取代度 101 乙醯基 7 苄基 1 727 102 乙醯基 6 苄基 2 775 103 乙酿基 7 苯甲醯基 1 741 104 乙酿基 6 苯甲醯基 2 802 105 苄基 2 無 0 523 106 苄基 3 無 0 613 107 苄基 4 無 0 702 108 乙酿基 7 苯基 乙醯基 1 771 109 乙酿基 6 苯基 乙酿基 2 847 110 苯甲醯基 1 無 - 446 111 苯曱醖基 2 無 - 550 112 苯曱醯基 3 無 • 654 113 笨曱醯基 4 無 - 758 114 苯甲醯基 5 無 - 862 115 苯甲醖基 6 無 - 966 116 苯曱醯基 7 無 - 1070 117 苯甲醯基 8 無 - 1174 18 201139461 [化2][Technical Field] The present invention relates to a deuterated cellulose film, a polarizing plate using the deuterated cellulose film, and a liquid crystal display device. In particular, the present invention relates to a deuterated cellulose film which is used as a polarizing plate protective film which can improve the durability of a polarizing plate under high temperature and high humidity in combination with a polarizing plate, and the use of the deuterated cellulose film. Polarizer and liquid crystal display device. [Prior Art] The use of a liquid crystal display device as an image display device that consumes less power and saves space has been expanding year by year. Previously, the liquid crystal display device has a large disadvantage that the viewing angle of the display image is large, but a wide viewing angle liquid crystal mode such as a Vertical Alignment (VA) mode has been put into practical use, thereby requiring a high-quality picture such as a television. Demand for liquid crystal display devices is rapidly expanding, such as the market or the market where outdoor lighting is required. The basic configuration of the liquid crystal display device is such that a polarizing plate is provided on both sides of the liquid crystal cell. The polarizing plate is responsible for the passage of only the light of the polarizing surface in the fixed direction. The performance of the liquid crystal display device is greatly affected by the performance of the polarizing plate. The polarizing plate generally comprises a polarizer and a transparent protective film. The polarizer comprises a polyvinyl alcohol film or the like which adsorbs iodine or a dye, and the transparent protective film is bonded to both sides of the front and back of the polarizer. The cellulose-deposited cellulose film represented by cellulose acetate is widely used as a polarizing plate protective film because it has high transparency and can easily ensure adhesion to polyethylene glycol used in a polarizer. In recent years, the actual situation is that high-quality images are required when the liquid crystal display device is placed outdoors under high temperature and high humidity, and polarized light is required. 4 201139461 Protective film is improved to polarize under high temperature and high humidity when combined with a polarizer. Board durability. First, from the above viewpoint, the cellulose-coated cellulose film which is generally used as a protective film for a polarizing plate requires high transparency (low haze), good moisture permeability (although high but not too low), and good optical properties. Previously it was adjusted to meet performance by adding a specific plasticizer. However, as a representative plasticizer, a carboxylic acid such as a diphenyl phosphate (Triphenyl Phosphate) is sublimed in a drying step during film formation of a deuterated cellulose film, and is attached to a manufacturing line. Contaminants fall onto the membrane causing problems such as planar failure. Further, in addition to this problem, from the viewpoint of providing an environmentally-friendly polarizing plate protective film and a method for producing the same, it is also required to use no ester as a plasticizer for the bismuth fiber octane film. On the other hand, various compounds are known as plasticizers which can be added to other modifiers other than deuterated cellulose, and it has been known from the past that saccharides and derivatives thereof can be added as a plasticizer. . For example, in the patent text = Zhong Kee, by adding galactose as a plasticizer to a plastic containing the powder and the cellulose, it is excellent in environmental properties and environmentally friendly. Rotation and machine = in the use of plasticizers for cellulose enamels for optical films, sugars and "hess are also suitable. Among the bribes and their targets, sugar and vinegar compounds are known. For example, In the special dispersion 2, the degree of substitution is 59.5% (the total thiol substitution degree is about the vinegar plasticizer derived from the hexa gamma (ice _ lose less 5__^= = In Patent Document 3, phase two = 201139461 cellulose acetate having an ethyl ketone substitution degree of 2.5, and a plasticizer obtained by esterification of a hydroxyl group of a saccharide of 8 〇 0 / 〇 to 99% (refer to the literature) [〇〇32], [〇115], [0134]). In Patent Document 4, a cellulose having a total thiol substitution degree of 2.1 to 2.7 is used, and all of the hydroxyl groups of the saccharide are used. A plasticizer which is partially esterified' is understood to be a plasticizer obtained by 100% esterification of a hydroxyl group of a sugar ester compound actually used (refer to the exemplified compound 1 to the exemplified compound 1). In Patent Document 5, several kinds of sugar ester compounds having different degrees of substitution are mixed for use as plasticization with respect to deuterated cellulose having a total thiol substitution degree of 2.7 to 2.95. The sugar ester compound is a sweet and sour compound obtained by partially acetating a monosaccharide to a disaccharide group (refer to the document [0393], exemplified by the compound 3 to the exemplified compound 6, the exemplified compound 9, and the exemplified compound 18, [Table 3] to [Table 6] and the like. However, in these documents, only the use examples of the sugar ester compound having a relatively high degree of ester substitution are disclosed, particularly in the case of mixing and using several sugar esters having different degrees of substitution. In Patent Document 5 of the compound, only a form in which the addition ratio of the low-substituted sugar ester compound is extremely small is disclosed. Further, in any of the documents, the total thiol substitution degree of the cellulose-deuterated cellulose is not described (especially An example of the relationship between the range of the ethyl thiol substitution degree and the degree of ester substitution of a sugar ester compound has been studied. That is, the degree of substitution and sugar ester of the deuterated cellulose (especially cellulose acetate) has not been revealed. The optimum combination of the degree of ester substitution of the compound. In addition, in these documents, the durability of the polarizing plate under high temperature and high humidity when the obtained polarizing plate protective film and the polarizing plate are combined is not studied. Literature 1] [Patent Document 2] Japanese Patent Laid-Open Publication No. 2005-515285 [Patent Document 4] WO2007/125764 [Publication No. WO2007/125764] [Patent Document 5JW02009/031464] SUMMARY OF THE INVENTION In view of the above, the inventors of the present invention have directed the above-mentioned Patent Document 2 from the viewpoint of replacing or improving a previously used plasticizer such as triphenyl phosphate (TPP). In the compound described in Patent Document 5, the physical properties of the film obtained when the compound was combined with a fluorinated cellulose film having an ethyl ketone group substitution degree of 2.7 or more and less than 2.95 was examined. However, when the sweet and sour compound having a south degree of substitution contained in Patent Documents 2 to 5 is used, it is not possible to obtain desired film properties such as transparency, moisture permeability, and optical properties, and when combined with a polarizer, The polarizing plates under the two warm south wetness are not sufficient, and further improvement is required. An object of the present invention is to provide a cellulose acetate film which is excellent in transparency, moisture permeability and optical performance and which can improve the durability of a polarizing plate under high temperature and high humidity when combined with a polarizing plate. Further, it is an object of the invention to provide a polarizing plate using the deuterated cellulose film and a liquid crystal display device using the same. As a result of intensive studies to solve the above problems, the present inventors have found that a sugar ester compound having a specific degree of ester substitution as a plasticizer is made into a mixture having a different degree of substitution, and a specific B When a combination of deuterated cellulose in the range of thiol substitution degree is used, transparency, moisture permeability, and optical performance can be obtained, and the high temperature at the time of combination with the polarizer can be improved. 7 201139461 The durability of the polarizing plate under wetness is brewed. Cellulose film. That is, the above problem is solved by the present invention having the following configuration. [1] A cellulose-deposited film comprising: a plurality of sugar ester compounds having different degrees of ester substitution, and deuterated cellulose, wherein the deuterated cellulose has an ethylidene group substitution degree of 2.70 or more and less than 2.95. Further, the sugar constituting the sugar ester compound is a disaccharide to a tetrasaccharide, and the average ester substitution degree of the plurality of sugar ester compounds having different degrees of ester substitution is 62% to 94%, and the ester contained in the cellulose film of the above-mentioned cellulose oxide film Among the various sugar ester compounds having different degrees of substitution, the content of the sugar-containing compound having an ester substitution degree of 75% or more is 8% by weight or less, and the content of the sugar ester compound having an ester substitution degree of 35% to 50% is 5 %~ 30%. [2] The cellulose-deposited film according to [1], wherein the sugar ester compound contains at least a sugar ring or an η-pyranose ring. [3] The cellulose-deposited film according to [1] or [2] wherein the sugar which becomes the mother nucleus of the above-mentioned sugar ester compound is a disaccharide. [4] The cellulose-deposited film according to any one of [1] to [3] wherein the above-mentioned sweet and sour compound has at least one of a benzoinyl group and an ethyl fluorenyl group as an ester group. [5] The cellulose-deposited film according to any one of [1] to [4] wherein the cellulose deuterated cellulose is cellulose acetate. [6] The cellulose-deposited film according to any one of [1] to [5] which has a phase difference. [7] The cellulose-deposited film according to any one of [1] to [6] which further has a functional layer. [8] The cellulose film according to [7], wherein the functional layer is a hard coat layer. [9] A polarizing plate comprising: a polarizer, and at least one film of the cellulose according to any one of [1] to [8]. [10] A liquid crystal display device comprising at least one sheet of a cellulose oxide film according to any one of (1) to m, or a polarizing plate according to [9]. According to the present invention, it is possible to provide transparency, moisture permeability, and optical performance, and it is possible to improve the polarizing plate under ten temperature and high humidity in combination with the polarized light. Further, by producing the cellulose film of the invention (IV), it is possible to provide a high-quality image when the film is placed outside the high-temperature nail, a polarizing plate of the local moon, and a liquid crystal display of the present invention using the same. [Embodiment] Hereinafter, the inner valley of the present invention will be described in detail. The components of the components described below are based on the embodiment of the present invention, but the present invention is not limited to such an embodiment. Further, in the present specification, "~" is used in the sense that the value of _ before and after the _ value is used as the lower limit and the upper limit. [Deuterated cellulose film] The cellulose-deposited cellulose film of the present invention (hereinafter also referred to as the film of the present invention) is characterized in that it contains a plurality of kinds of sweet and sour compounds having different degrees of substitution, and deuterated cellulose. The degree of substitution of the acetyl group of the cellulose is 27 〇 or more and less than 2.95, and the saccharide constituting the above-mentioned _ compound is a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 62% to 94%, the content of the sugar ester compound having a degree of ester substitution of 75 Å/〇 or more in the various sugar ester compounds having different degrees of ester substitution in the above-described fluorinated cellulose film is 80% or less, and the ester The content of the sugar ester compound having a degree of substitution of 35% to 50% is 5°/. ~30〇/〇. Hereinafter, the film of the present invention will be described. <Deuterated cellulose> In the present invention, deuterated cellulose having an ethyl ketone group substitution degree of 2.70 or more and less than 2.95 is used. When the degree of substitution of the ethyl group is 27 or more, compatibility with a sugar ester compound (e.g., sucrose benzoate having a specific degree of substitution) which satisfies the conditions described later is good, and the film is not easily whitened, which is preferable. Further, in addition to the transparency, the moisture permeability or the water content is also good, which is preferable. Further, the durability of the polarizing plate or the wet heat durability of the film itself is also good, so that it is preferable. On the other hand, if the degree of substitution is less than 2.95, the optical performance is remarkably improved, which is preferable. The degree of substitution of the above-mentioned deuterated cellulose is more preferably 2 75 to 2 9 Å, particularly preferably 2.82 to 2.87. Further, the preferred range of the total thiol substitution is also the same as the preferred range of the above-mentioned oxime. a Further, the degree of substitution of the thiol group can be determined according to the method of a in ASTM_D817 96. The moiety which is not substituted by a thiol group is usually an hydroxy group and is substituted with a fluorenyl group having a carbon number of 2 to 22 and a carbon number of 2 to 22, which may be an aliphatic group. ▲ 醯 propyl group is not particularly limited and may be a single compound or a mixture of two = olefins 201139461. These may be, for example, a pyridyl ester of cellulose, an alkenylcarbonyl ester or an aromatic carbonyl ester, an aromatic alkylcarbonyl ester or the like, and each may have a group which is further substituted. Preferred examples of the sulfhydryl group include an ethyl fluorenyl group, a propyl fluorenyl group, a butyl fluorenyl group, a fluorenyl group, a hexyl fluorenyl group, a decyl group, a fluorenyl group, a fluorenyl group, a thirteenth fluorenyl group, and a fourteenth Base, hexadecanyl, octadecyl, isobutyl sulfhydryl, tert-butyl fluorenyl, cyclohexanecarbonyl, oleoyl, benzoinyl, naphthylcarbonyl, cinnamyl, and the like. Among these, preferred are an ethyl group, a propyl group, a butyl group, a fluorenyl group, a decyl group, an octadecyl group, a third butyl group, an oil fluorenyl group, a fluorenyl group, a naphthyl group, a cinnamyl group, and the like. More preferably, it is an ethylene base, a propyl group, and a butyl group. The cellulose-defluorated cellulose film used in the present invention imparts hydrophilicity from the viewpoint of adjusting moisture permeability or water content, and therefore the substituent is preferably a substituent containing an ethyl fluorenyl group. Further, as the mixed fatty acid deuterated cellulose, a mixed fatty acid deuterated cellulose may be used, and specific examples thereof include cellulose acetate propionate and cellulose acetate butyrate. The basic principle of the method for synthesizing deuterated cellulose is described in the Wood Chemistry, ed., vol. 180-190 (Kyoritsu, 1968). A representative synthetic method is liquid phase acetylation using a tarenic acid-acetic acid-sulfuric acid catalyst. When the above-mentioned deuterated cellulose is obtained, specifically, a cellulose raw material such as cotton linters or wood pulp is pretreated with an appropriate amount of acetic acid, and then poured into a pre-cooled acidified mixed solution for acetification to synthesize complete hydrazine. The cellulose (the total of the thiol substitution degrees at the 2, 3, and 6 positions is approximately 3 〇〇). 11 201139461 The above (4) mixed solution generally contains acetic acid as a solvent, a tickic acid if as a hydrazine, and a sulfur as a thief. It is usually used in an amount that is chemically more than the amount of moisture present in the anti-Brown fiber system (10). After the end of the reaction, the neutralizing agent (for example, lanthanum, 35, iron, and zinc in the zinc) is added to carry out the hydrolysis of the excess surface if and the neutralization of the partial catalyst. An aqueous solution of a salt, acetate or oxide. Then, the obtained fully deuterated cellulose is saponified and matured by maintaining it at 5 〇t to 9 Torr in the presence of a small amount of an oxime reaction catalyst (generally residual sulfuric acid), and is changed to have The desired degree of substitution of the base and the degree of polymerization of the brewed cellulose. At the point of time when the desired cellulose deuterated cellulose is obtained, the catalyst remaining in the system is completely neutralized using the neutralizing agent as described above, or the deuterated cellulose solution is poured into water or diluted without neutralization. The specific deuterated cellulose described above can be obtained by separating the deuterated cellulose in sulfuric acid (or by introducing water or dilute sulfuric acid into the deuterated cellulose solution), washing, stabilizing, and the like. The molecular weight of the above deuterated cellulose is preferably from 40,000 to 200,000, more preferably from 1,000,000 to 200,000, in terms of number average molecular weight (Mn). The Mw/Mn of the brewed cellulose used in the present invention is preferably 4.0 or less, more preferably 1.4 to 2.3. In the present invention, the average molecular weight and molecular weight distribution of 'deuterated cellulose and the like can be calculated by gel permeation chromatography (GPC) to calculate the number average molecular weight (Mn) and the weight average molecular weight (Mw), and The method described in the publication WO 2008-126535 calculates the ratio of the two. 12 201139461 <Sugar ester compound> The film of the present invention contains a plurality of sugar ester compounds having different degrees of ester substitution, and the sugar constituting the sugar ester compound is a disaccharide to a tetrasaccharide, and the plurality of sugar ester compounds having different degrees of ester substitution are used. The average ester substitution degree is 62% to 94%, and the content of the sugar ester compound having an ester substitution degree of 75% or more in the plurality of sugar ester compounds having different degrees of ester substitution in the above-described cellulose-deuterated film is 80%. In the following, the content of the oxime ester compound having an ester substitution degree of 35% to 50% is 5% to 30%. By adding the above-mentioned sugar ester compound to the cellulose fluorite film, the visibility of optical characteristics can be prevented. Even if the heat treatment is not performed before the stretching step, the total turbidity and the internal turbidity can be reduced. Further, by using the cellulose telluride film of the present invention in a liquid crystal display device, the front contrast can be greatly improved. - Sugar residue - The above-mentioned sugar ester compound means a compound in which at least one of a substitutable group (e.g., a hydroxyl group or a carboxyl group) in the polysaccharide constituting the compound is ester-bonded to at least one substituent. Namely, the sugar ester compound herein also includes a broadly sucrose-like organism, for example, a compound containing a sugar residue such as gluconic acid as a structure. Namely, the above sugar ester compound includes an ester of glucose and a carboxylic acid, and also includes an ester of gluconic acid and an alcohol. The substitutable group in the polysaccharide constituting the above sugar ester compound is preferably a trans group. In the above sugar ester compound, 'the structure derived from polyterpenes constituting the sugar ester compound (hereinafter also referred to as a sugar residue) is contained. Each single saccharide residue 13 201139461 is referred to as a structural unit of a compound. Difficult to be the above-mentioned sugar and vinegar: 2 structural unit contains π (four) county fresh domain material county unit, -:, some sugar residues light structural unit or seven practice structure ί = ί constitute the above sugar ester, preferably - and Contains 吼 two, 〇 〇 兀 or furanose structural unit. The sugar residue of the vine vinegar compound may be derived from a five-carbon sugar or may be derived from a hexose anti-sugar, but is preferably derived from a six-carbon sugar. The number of structural units contained in the 〜4, upper=^ conjugate is preferably 2 sugars above ^3, particularly preferably 2. That is, the above-mentioned sweet and sour compound is ϋ 四 to tetrasaccharide, more preferably bis to trisaccharide, and particularly preferably, the above-mentioned sweet and sour compound preferably contains 2 to 4 units. Between the two or more than the singular structure unit or the butterfly structure, there are at least one via the substrate. The (four) I structure is early or the saccharide structure unit is saccharified to form the above monosaccharide or contains 2 to 4 subunits. For example, it can be mentioned: red peony, threose, ribose sugar, f example, sugar, alu, azhuo sugar, (four) sugar, fructose, sweet = idose, galactose, tower miscellaneous, sea test t: bud rr, Disaccharide, Aspergillus niger, malt-lactosamine, lactitol, lactulose, melibiose, onion disaccharide, sucrose, sucrose, sucrose, = grass =, syrup, sea Human and sugar, cellotriose, 201139461 disaccharide, gentian disaccharide, isomaltose, isoglucosyl maltose, maltotriose, mannotriose, pine triose, panaxose, psyllium , raffinose, eugenose: umbrella sugar, lycopene, maltotetraose, stachyose, maltopentaose, hairy sugar, maltohexaose, xylitol, sorbitol, etc. More Good ribose, arabinose, xylose, lyxose, raisin, fructose, mannose, galactose, trehalose, maltose, cellobiose, lactose, sucrose, xylitol, sorbitol, etc. Good for arabinose, xylose, glucose, fructose, mannose, galactose, maltose, fiber double hearing, sugar, especially for xylose, glucosamine, silk, chloroplast, galactose, maltose, cellobiose, sucrose , Xylitol, Sorbitol - Structure of Substituent - The above-mentioned sugar s-used compound used in the present invention preferably contains a usable substituent and has a structure which is fine by the following formula (1). Formula (1) (〇^VG<^\(〇^2)r In the formula (1), G represents a sugar residue, and L! represents _〇·, _c〇... clothes 13 ==1 represents a hydrogen atom or a monovalent a substituent, Rl2 represents a substituent having a valence of =. " and r each independently represent an integer above 〇, p + q + 1• is equal to the number of bases assuming the above substituted _. The preferred range of the above G is preferably in the range of the above-mentioned saccharide residue, and the above L is preferably _〇_ or _c〇_, more preferably. When the above-mentioned l丨 is 15 201139461, it is particularly preferably a linking group derived from a bond or a vinegar bond, and particularly preferably a linking group derived from a vinegar bond. Further, when there are a plurality of L1s, the same can be used. Preferably, at least one of R11 and R12 has an aromatic ring. In particular, when L1 is (i.e., when R", Ru is substituted on a hydroxyl group in the above sugar ester compound), Rn, Rlz and Preferably, RU is selected from a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted aryl group, a substituted substituted silk, a substituted or unsubstituted amine group, more preferably a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted silk, or a substituted silk substituted aryl group, particularly preferably an unsubstituted fluorenyl group, a substituted or unsubstituted alkyl group, or Unsubstituted aryl. Further, when there are a plurality of R", RU, and Ri3, respectively, they may be the same or different. . . The P table is not limited to the above integer, and the preferred range is the same as the preferred range of the number of hydroxyl groups per monosaccharide unit to be described later. Preferably, the above r represents a number larger than the number of pyranose structural units or the number of gurdose structural units contained in the above G. The above q is preferably 0. Further, since P + q + r is equal to the number of hydroxyl groups when the above-mentioned G is an unsubstituted saccharide having a cyclic acetal structure, the upper limit of the above p, q & r is a structure corresponding to the above G. Determine consistently. Preferred examples of the substituent of the above-mentioned sugar ester compound include a hospital base (preferably having a carbon number of 1 to 22, more preferably a carbon number of 丨~12, and particularly preferably a carbon 201139461 number of 1 to 8). a base such as a mercapto group, an ethyl group, a propyl group, an ethyl group, a propyl 2 cyanoethyl group, a benzyl group or the like, an aryl group (preferably having a carbon number of 6 to 24, more preferably 6 to 18, Particularly preferred is an aryl group of 6 to 12, such as a phenyl group, a naphthyl group, or a fluorenyl group (preferably having a carbon number of 1 to 22, more preferably a carbon number of 2 to 12, particularly preferably a carbon number of 2 to 8). Alkyl groups such as ethyl, propyl, butyl, pentylene, hexyl, octyl, phenyl, phenyl, phthalic acid, etc. Preferably, the carbon number is i~22, more preferably the carbon number is 2~12, particularly preferably the decylamine having a carbon number of 2~8, such as amidino group, an etidamine group, etc.) Preferably, the carbon number is 4 to 22, more preferably 4 to 12 carbon atoms, particularly preferably an amidino group having a carbon number of 4 to 8, such as amber quinone imine group, quinone imine group, etc.) Jia is a hospital base or a base, and thus better as a base, a base, a stupid base, a special B is a benzoyl group, and mince at least one group, and further particularly preferably benzoyl group. As a method for obtaining the above-mentioned sugar ester compound, commercially available products such as jin, Huacheng (share), and Aldrich may be commercially obtained, or a known S-derivative method may be used for commercially available carbohydrates. It is preferable that the number average molecular weight is more preferably from 200 to 3,000, particularly preferably from 250 to 2,000, in the method of 200 〜 〜 。 。 。 。 。 。 。 。 。 。 。 。 。. Specific examples of the above-mentioned sugar-combination compound which can be preferably used in the present invention are listed, but the present invention is not limited to the following embodiments. More than two of two independently represent an arbitrary substituent, and may be different. The ClogP value is a value obtained by calculating a common logarithm logP of the partition coefficient P of alcohol and water for sim 17 201139461. For the calculation of ClogP values, use the Daylight Chemical Information Systems system: Group CLOGP programs in PCModels. [Chemical 1] ch2or ten μ m C〇R ^ OR ] I Τ I ch2or H OR OR Η [Table 1] Compound substituent 1 Substituent 2 Molecular weight species Substitution degree Substitution degree 101 Ethyl 7 benzyl 1 727 102 Ethyl 6 benzyl 2 775 103 Ethyl 7 Benzopyridin 1 741 104 Ethyl 6 Benzopyridin 2 802 105 Benzyl 2 No 0 523 106 Benzyl 3 No 0 613 107 Benzyl 4 No 0 702 108 Ethyl 7 phenylacetamyl 1 771 109 Ethyl 6 Phenyl Erylate 2 847 110 Benzopyridinyl 1 - 446 111 Phenylhydrazine 2 Nil - 550 112 Phenylhydrazyl 3 • 654 113 awkward base 4 none - 758 114 benzamidine 5 no - 862 115 benzamyl 6 not - 966 116 phenyl sulfonyl 7 no - 1070 117 benzamidine 8 no - 1174 18 201139461 [ 2]
[表2] 化合物 取代基1 取代基2 分子量 種類 取代度 種類 取代度 301 乙酿基 6 苯曱醯基 2 803 302 乙酿基 6 苄基 2 775 303 乙酿基 6 苯基 乙醯基 2 831 304 苯曱醯基 2 無 0 551 305 苄基 2 無 0 522 306 苯基 乙酿基 2 無 0 579 [化3][Table 2] Compound Substituent 1 Substituent 2 Molecular Weight Species Degree of Substitution Degree of Substitution Degree 301 Ethylene 6 Phenylhydrazyl 2 803 302 Ethylene 6 Benzyl 2 775 303 Ethyl 6 Phenyl Ethyl 2 831 304 phenylhydrazine 2 no 0 551 305 benzyl 2 no 0 522 306 phenyl ethyl 2 without 0 579 [Chemical 3]
19 201139461 [表3] 化合物 取代某1 401 ' 種類 乙醯基 _ 取代度 402 乙醯基 6 403 乙醯基 6 404 笨甲醯基 2 405 苄基 2 406 苯基 酯 219 201139461 [Table 3] Compound Substituting a certain 1 401 'type Ethylene group _ Substitution degree 402 Ethyl group 6 403 Ethyl group 6 404 Bismuthyl group 2 405 Benzyl 2 406 Phenyl ester 2
上述糖酯化合物相對於醯化纖維素 量%〜3〇質量%,更佳A含有 缝馮3有2質 A人古為有〜2G質量%,特佳 為含有5質量%〜15質量%。 另外’當將後述的聚料塑化顯上述糖酯化合物併 =」目對於《系塑化劑的添加量(f量份)的上述糖 酉乂匕口物的添加量(質量份)較佳為添加2倍〜1〇倍(質 重比),更佳為添加3倍〜8倍(質量比)。 (不同的酯取代度的糖酯化合物的含有比例) 、於本發財,含有多種自旨取代度不__化合物, 上述S曰取代度不同的多種糖酯化合物的平均酯取代度為 62/。94/。。藉由將上述糖酯化合物的平均酯取代度控制 於此種範_,可減小本發__含水率或透濕度,且 存在偏光板耐久性或膜本身的濕熱耐久性變得良好的傾 向進而,將上述糖酯化合物的平均酯取代度控制於此種 範圍内的膜的光學顯現性(Rtil)亦較大而較佳。 於本發明中,醜化纖維素膜中所含有的酯取代度不同 20 201139461 的多種糖酯化合物中,酯取代度為75〇/〇以上的糖酯化合物 的含有率為80%以下,且酯取代度為35%〜50%的糖酯化 合物的含有率為5%〜30%。藉由將上述糖酯化合物的各取 代物的含有率控制於此種範圍内,可保持本發明的膜的透 明性。 本發明者等人發現若相對於乙醯基取代度高的醯化纖 維素膜中所含有的所有酯取代度不同的多種糖酯化合物, 作為酯取代度為75%以上的高取代物的糖酯化合物的含有 率為80%以上,則存在糖酯化合物與醯化纖維素不相容而 滲出的傾向。 另外本發明者等人亦不拘泥於任何理論,發現若於 平均酯取代度為上述範圍的酯取代度不同的多種糖酯化合 物中,含有固定量的作為酯取代度為35%〜5〇%的低取代 物的糖醋化合物,藉由低取代物_容化能力而使糖醋 化口物與乙酿基取代度高的醢化纖維素的相容性變得良 好,可防止對膜進行製膜時糖酯化合物滲出。 再者,當上述糖酯化合物為二醣類時,經酯化的取代 基的數量的平均值為5個〜75冑,㈣旨化的取代基為6 個〜8個的高取代物的含有率為跳以下,經g旨化的取代 基為3個〜4個的取代物的含有率為5%〜3〇%。 上述酯取代度不同的多種糖醋化合物的平均醋取代度 較佳為6G〜95% ’更佳為65〜85%。將上述酯取代度不同 的多種糖S旨化合物的平均g旨取代度控制於上述範圍内,意 味著將上述醋取代度不同的多種糖S旨化合物中的每個結^ 21 201139461 單元的的平均數量控制於相·的範_。藉由控制 上述,化合射的每個結構單元的減的平均數量Γ可 抑制高溫高濕隨著時間下的糖g旨化合物的朝偏光片層的移 動、以及聚乙烯醇(polyvinyl Alc〇h〇1,PVA)碟錯合物 的毀壞,並可抑制高溫高濕隨著時間下的偏光片性能二劣 化而較佳。 於本發明中,醯化纖維素膜中所含有的酯取代度不同 的多種糖酯化合物中,酯取代度為75%以上的糖酯化合物 的含有率較佳為40%〜80%,更佳為55°/。〜75°/。。尤其, 就光學性能、含水率或透濕度的觀點而言,醯化纖維素膜 中所含有的酯取代度不同的多種糖酯化合物中,酯取代度 為75%以上的糖酯化合物的含有率在某種程度上越高越 好。 於本發明中,醯化纖維素膜中所含有的酯取代度不同 的多種糖酯化合物中’酯取代度為35%〜50%的糖酯化合 物的含有率較佳為5%〜40%,更佳為10%〜3〇〇/0。 使用多種滿足以上條件的酯取代度不同的糖酯化合物 與滿足上述乙醯基取代度的範圍的醯化纖維素進行組合, 藉此可獲得膜的物性或光學性能,且偏光板耐久性亦可改 善成比所謂的磷酸三笨酯(Triphenyl phosphate,TPP ) / 雙盼 A 雙(麟酸二苯醋)(Bisphenol-A bis(diphenyl phosphate) ’ BDP )等公知的磷酸酯系塑化劑更優異。另外, 當與硬塗層進行積層時,亦可獲得密接性優異,鉛筆硬度 亦良好的膜。 22 201139461 (製備不同的酯取代度的多種糖酯化合物的方法) 作為混合多種上述酯取代度不同的糖酯化合物的方 法,並無特別限制,可使用公知的方法。另外,多種上述 酯取代度不同的糖酯化合物的混合的時間點例如於採用溶 液製膜法的情況下,可為添加於醯化纖維素摻雜物之前, 亦可為向醯化纖維素摻雜物中個別地添加多種糖酯化合物 之後。 <糖酯化合物以外的其他添加劑> (1)糖酯化合物以外的塑化劑 本發明的醯化纖維素膜較佳為含有選自多元醇酯系疏 水化劑、聚縮合酯系疏水化劑及碳水化合物衍生物系疏水 化劑中的至少-種疏水化劑作為上述㈣化合物以外的塑 2劑。作為上錢水化劑’較佳為儘可能不降低膜的玻璃 2移,,減少含水率者。藉由使用此種疏水化劑,可 制南溫高濕下醯化纖維素膜中的添加劑朝偏光片層擴散 、現象,並可改良偏光片性能的劣化。 (多元醇酯系疏水化劑) 上述多元醇是由以下的通式(A)表示。 通式(A) R31-(〇H)n 整數) (其中,R31表示η價的有機基,n表示2以上的正的 作為車乂佳的上述多元m水化劑關子,例如可列 23 201139461 =者乙3不限=於:些:可乙列舉醇福壽草醇, 兩-随、h 一乙一知、二乙一和、四乙二醇、^ 一-,3·丙二醇、二丙二醇、三丙二醇、12_ 1,3-丁二醇、! 4 丁 _ # > 〆』一私、 A - st u 二丁二酵、丨,2,4·丁三醇、^ 已二醇、己三醇、半乳糖醇、甘露醇、3•曱基 戊烧-1,3,5·三醇、頻哪醇、山梨糖醇、三㈣ : 經曱基乙烧、木糖醇等。特佳為三乙二醇、四乙二醇、二 丙一^中二而二醇、山梨糖醇、三經曱基丙燒、木糖醇。 數為5以上的多元醇的多元_。特佳為碳數為5〜用 糾多元醇財所使㈣單羧酸,並無特別限 =,可使用公知的脂肪族單羧酸、脂環族單羧酸、 早緩酸等。若使用脂_單紐、㈣接 昇透濕性、保留性的觀點而言較佳。早賴則从 作為較佳的上述多元醇醋中所使用的單 可列舉如下者,但並不限定於此。 的例子 沾作為上述脂肪族單叛酸,可較佳地使用碳數為1〜32 =具有直鍵或側鏈的脂肪酸。更佳為碳數為卜⑼,特佳 ^〜10。若含有乙賤,則與纖維素衍生物的相容性增加, 故較佳,將乙酸與其他單紐混合來賴亦較佳。 作為較佳的上述脂肪族單羧酸,可舉: =酸、己酸、庚酸、辛酸、壬酸、癸酸、2丙乙;_ 十一酸、月桂酸、十三酸、肉豆鐘酸、十五酸、 棕慨、十七酸、硬脂酸、十九酸、花生酸、二十二酸、 24 201139461 一十四I、壤酸、二十七酸、二十人酸、蜜蠛酸 旨肪酸,十一烯酸、油酸、山梨酸、亞麻油酸、 -人亞麻油酸、花生油酸等不飽和脂肪酸等。 作為較佳的上述脂環族單羧酸的例子,可列舉:产 炫叛酸、環己絲酸、環找舰、或魅 衣 作為較佳的上述芳香族單舰的例子了可列舉= 酸’甲苯甲酸等將絲導人至苯甲g《的苯環中而成者 苯羧酸、萘羧酸、四氫萘羧酸等具有2個以上笨環的芳^ 族單缓酸’或該些的衍生物,但特佳為苯曱酸。 上述多元醇系疏水化劑的分子量並無特別限制, 為300〜3000,更佳為350〜1500。分子量越大,越難以 發,故較佳,就透濕性、與纖維素衍生物的相容性 而言,敍/丨、抵衫·。 上述多元醇酯中所使用的羧酸可為一種,亦可為兩 以上的混合。另外,上述多元醇中的羥基可全部二, 可使一部分以羥基的狀態殘留。 3 ,^ 以下’表示上述多元醇酯的具體的化合物。 25 201139461 [化4] 1 C4H3-C-0*-(CH2}2-〇-<CH^2~0-*(CH2)a-〇-C~C4H9 ο ο 2 Ο" 贫 *·〇—(CH2)2—〇 — {CHah—O一<CHa)2 一 V==Z Q Ο 3 〈—(CH2)2—Ο—<CH山一〇 一 (CHdf 〇 一 〉 ^~f 〇 0 ^~f 4》—C~Q'~^,CH2-CHg—-Q^'*G~-^》 5 C4H9-C-〇-^CH2-CHt-〇-^-C-C4H9 〇 〇 6 CRH17-C-〇-(cH2-CH2-〇^C-CBHt7 0 o 7 〇-S~。十叫-CHr〇^-5-〇 8《\~C-0-^CH2CH2CH2-0^-C~/ yThe sugar ester compound is contained in an amount of 3% by mass to 3% by mass based on the amount of the fluorinated cellulose, and more preferably, the saponin 3 has a sufficiency of 2, and the content of the sugar ester compound is ~2G% by mass, particularly preferably 5% by mass to 15% by mass. In addition, it is preferable that the amount of the above-mentioned sugar gargle is added to the amount of the plasticizer added (the amount of the plasticizer). To add 2 times to 1 〇 times (mass weight ratio), it is more preferable to add 3 times to 8 times (mass ratio). (The content ratio of the sugar ester compound having a different degree of ester substitution) is rich in the degree of substitution with respect to the present invention, and the average degree of ester substitution of the plurality of sugar ester compounds having different degrees of substitution of S曰 is 62/. 94/. . By controlling the average degree of ester substitution of the above-mentioned sugar ester compound to such a range, the moisture content or moisture permeability of the present invention can be reduced, and the durability of the polarizing plate or the wet heat durability of the film itself tends to be good. Further, it is preferred that the film having the average degree of ester substitution of the above-mentioned sugar ester compound controlled within such a range has a large optical display property (Rtil). In the present invention, the degree of substitution of the ester contained in the sterilized cellulose film is different from that of the various sugar ester compounds of the above-mentioned 20, 2011, 461, the content of the sugar ester compound having an ester substitution degree of 75 Å/〇 or more is 80% or less, and the ester is substituted. The content of the sugar ester compound having a degree of 35% to 50% is 5% to 30%. By controlling the content of each of the above-mentioned sugar ester compounds to such a range, the transparency of the film of the present invention can be maintained. The inventors of the present invention have found that a plurality of sugar ester compounds having different degrees of ester substitution in the cellulose-deposited cellulose film having a high degree of substitution with respect to an acetyl group have a sugar having a high degree of substitution with an ester substitution degree of 75% or more. When the content of the ester compound is 80% or more, the sugar ester compound tends to be incompatible with the deuterated cellulose and oozes out. Further, the inventors of the present invention have not been bound by any theory, and found that a plurality of sugar ester compounds having a different degree of ester substitution in the above range have a degree of substitution of the ester of 35% to 5% by weight. The low-yield sweet and sour compound has good compatibility with the cellulose acetate having a high degree of substitution with the ethylenic acid by the low-substrate_capacitability, thereby preventing the film from being formed. The sugar ester compound bleeds out during film formation. Further, when the sugar ester compound is a disaccharide, the average number of the esterified substituents is 5 to 75 Å, and the (4) substituent is 6 to 8 high substitution contents. The rate of substitution of the substituents of 3 to 4 is 5% to 3% by weight. The average vinegar substitution degree of the above various sweet and sour compounds having different degrees of ester substitution is preferably from 6 g to 95% by weight, more preferably from 65 to 85%. The average g of the various sugar S compounds having different degrees of ester substitution is controlled within the above range, which means that each of the plurality of sugar S compounds having different degrees of vinegar substitution has an average of 21 201139461 units. The quantity is controlled by the phase _ of the phase. By controlling the above, the average number of reductions of each structural unit of the hydration can suppress the movement of the toner toward the polarizer layer under high temperature and high humidity with time, and polyvinyl alcohol (polyvinyl Alc〇h〇) 1, PVA) The destruction of the disc-compounding compound can suppress the deterioration of the performance of the polarizer under high temperature and high humidity with time. In the present invention, the content of the sugar ester compound having an ester substitution degree of 75% or more is preferably 40% to 80%, more preferably, in the plurality of sugar ester compounds having different degrees of ester substitution in the cellulose film. It is 55°/. ~75°/. . In particular, in the case of optical properties, water content, or moisture permeability, the content of the sugar ester compound having a degree of ester substitution of 75% or more among the various sugar ester compounds having different degrees of ester substitution in the cellulose film for deuteration To some extent, the higher the better. In the present invention, the content of the sugar ester compound having a degree of ester substitution of 35% to 50% in the plurality of sugar ester compounds having different degrees of ester substitution in the cellulose film for deuteration is preferably 5% to 40%. More preferably, it is 10%~3〇〇/0. A plurality of sugar ester compounds having different degrees of ester substitution satisfying the above conditions are combined with deuterated cellulose satisfying the above-described degree of substitution of the ethyl thiol group, whereby physical properties or optical properties of the film can be obtained, and durability of the polarizing plate can be obtained. It is improved to be superior to known phosphate ester plasticizers such as the so-called Triphenyl phosphate (TPP) / Bisphenol-A bis (diphenyl phosphate) BDP. . Further, when laminating with the hard coat layer, a film excellent in adhesion and excellent in pencil hardness can be obtained. 22 201139461 (Method of preparing various sugar ester compounds having different degrees of ester substitution) The method of mixing a plurality of sugar ester compounds having different degrees of ester substitution is not particularly limited, and a known method can be used. In addition, a plurality of times of mixing the above-mentioned sugar ester compounds having different degrees of ester substitution may be, for example, in the case of using a solution film forming method, or may be added to the cellulose halide dopant before the addition of the cellulose halide dopant. After the inclusion of a plurality of sugar ester compounds individually. <Additives other than the sugar ester compound> (1) Plasticizer other than the sugar ester compound The cellulose telluride film of the present invention preferably contains a polyol ester-based hydrophobizing agent and a polycondensed ester-based hydrophobicizer. The agent and the carbohydrate derivative are at least one type of hydrophobizing agent in the hydrophobizing agent, and are two plastic agents other than the compound (4). As the hydrating agent for the money, it is preferable to reduce the glass of the film as much as possible, and to reduce the water content. By using such a hydrophobizing agent, it is possible to diffuse an additive into the polarizing plate layer in the cellulose film at a south temperature and high humidity, and to improve the deterioration of the performance of the polarizing plate. (Polyol ester-based hydrophobizing agent) The above polyol is represented by the following formula (A). General formula (A) R31-(〇H)n integer) (wherein R31 represents an organic group of η valence, and n represents a positive ternary m hydrating agent of 2 or more, which is preferably a ruthenium, for example, 23 2011 39461 = B3 is not limited = in: some: can be listed as alcohol, sedative, two-same, h, one, one, two, one, four ethylene glycol, one, one, three, propylene glycol, dipropylene glycol, three Propylene glycol, 12_ 1,3-butanediol, ! 4 _ _ # > 〆 一 a private, A - st u dibutyl, leave, 2,4 · butyl triol, hexane diol, hexane , galactitol, mannitol, 3·mercaptopyrene-1,3,5·triol, pinacol, sorbitol, tris(4): thiopurine, xylitol, etc. Ethylene glycol, tetraethylene glycol, dipropylene mono-2-diol, sorbitol, tri-propyl mercapto, xylitol. The number of polyols of 5 or more is more than _. The (4) monocarboxylic acid is not particularly limited as long as it is used, and a known aliphatic monocarboxylic acid, alicyclic monocarboxylic acid, early acid, or the like can be used. (4) It is better to pick up the moisture permeability and retention. The monomer used in the above-mentioned polyol vinegar is preferably as follows. However, the present invention is not limited thereto. The example is preferably used as the above aliphatic monorexic acid, and the carbon number is preferably from 1 to 32. A fatty acid having a bond or a side chain. More preferably, the carbon number is (9), particularly preferably 0 to 10. If acetamidine is contained, the compatibility with the cellulose derivative is increased, so it is preferred to mix acetic acid with other single bonds. Further preferred is the above aliphatic monocarboxylic acid: acid, caproic acid, heptanoic acid, caprylic acid, capric acid, capric acid, 2 ethyl acetate; _ decanoic acid, lauric acid, ten Triacid, mezzanine acid, pentadecanoic acid, brown gene, heptadecanoic acid, stearic acid, nineteen acid, arachidic acid, behenic acid, 24 201139461, fourteen I, soil acid, twenty-seven acid, Twenty people of acid, candied acid, fatty acid, undecylenic acid, oleic acid, sorbic acid, linoleic acid, human linoleic acid, peanut oleic acid and other unsaturated fatty acids, etc. Examples of the carboxylic acid include an example of producing the above-mentioned aromatic single ship, which is a preferred transgenic acid, cyclohexanoic acid, a ring-seeking ship, or a charm. Listed = acid-toluic acid, etc., which are introduced into the benzene ring of benzoyl g, such as benzene carboxylic acid, naphthalene carboxylic acid, tetrahydronaphthalene carboxylic acid, etc. 'or a derivative thereof, but particularly preferably benzoic acid. The molecular weight of the above-mentioned polyol-based hydrophobizing agent is not particularly limited, and is 300 to 3,000, more preferably 350 to 1,500. The larger the molecular weight, the more difficult it is to produce. Therefore, in terms of moisture permeability and compatibility with a cellulose derivative, the carboxylic acid used in the above polyol ester may be one type or a mixture of two or more. Further, all of the hydroxyl groups in the above polyol may be two, and a part of the hydroxyl group may remain in the form of a hydroxyl group. 3, ^ The following 'is a specific compound of the above polyol ester. 25 201139461 [Chemical 4] 1 C4H3-C-0*-(CH2}2-〇-<CH^2~0-*(CH2)a-〇-C~C4H9 ο ο 2 Ο" Poor*·〇— (CH2)2—〇—{CHah—O—<CHa)2 A V==ZQ Ο 3 〈—(CH2)2—Ο—<CH山一〇一 (CHdf 〇一〉 ^~f 〇0 ^~f 4》—C~Q'~^,CH2-CHg—-Q^'*G~-^” 5 C4H9-C-〇-^CH2-CHt-〇-^-C-C4H9 〇〇6 CRH17 -C-〇-(cH2-CH2-〇^C-CBHt7 0 o 7 〇-S~. 十叫-CHr〇^-5-〇8"\~C-0-^CH2CH2CH2-0^-C~/ y
、 · q q \sssssJ 9 C4He_C-0~[*CH2CH2CH2—〇^~C_C4H9 o 3 0 10 CBHi7-C-0-^CH2CH2CH2-0^-C-C8H17, q q \sssssJ 9 C4He_C-0~[*CH2CH2CH2—〇^~C_C4H9 o 3 0 10 CBHi7-C-0-^CH2CH2CH2-0^-C-C8H17
O O 11 {_Vc-〇^ch2ch2ch2-o^c-h^\ v—y q q 12 f、一c-〇*"f~CH2CH*^〇V~C7 〇 ch3 〇 13 C4He—c—o-^ch2ch—o^~-c~c4h» o o aOO 11 {_Vc-〇^ch2ch2ch2-o^ch^\ v-yqq 12 f, one c-〇*"f~CH2CH*^〇V~C7 〇ch3 〇13 C4He-c-o-^ch2ch-o ^~-c~c4h» ooa
CH 14 15CH 14 15
CeH^-C-O^C^CH-O^-C-CaHiT 。 CHS 〇 〇~ir〇*{CH2?H—(=) 26 201139461CeH^-C-O^C^CH-O^-C-CaHiT. CHS 〇 〇~ir〇*{CH2?H—(=) 26 201139461
18 ch2-o-c-c8h1718 ch2-o-c-c8h17
CHaCHjf-C~CH2-〇_C-C8H17 I O 13 O \广“"〇 Ct^CH3-C-CH2-〇-C—/ \ 〇CHaCHjf-C~CH2-〇_C-C8H17 I O 13 O \广""〇 Ct^CH3-C-CH2-〇-C—/ \ 〇
ch2-o-c-c8h1t O CHa-0-C-CH3 20 21 ch2 CHaCHj-C-CH*—O-C-CH, I ° CH2-〇-C-CHso ch2-o ch3ch2-c-ch2-Ch2-o-c-c8h1t O CHa-0-C-CH3 20 21 ch2 CHaCHj-C-CH*—O-C-CH, I ° CH2-〇-C-CHso ch2-o ch3ch2-c-ch2-
ch2Ch2
•0-rO 22 o 2^0-C—/ \ CH3CH2"C-CH2-〇-C—/ ) 23 oo 厂“-〇 CH3CH2—C-CHa—O-C—^〉•0-rO 22 o 2^0-C—/ \ CH3CH2"C-CH2-〇-C—/ ) 23 oo Factory “-〇 CH3CH2—C-CHa—O-C—^>
CHa—OH 27 201139461 6]化 24 ΓΕό ^ CIO— \^/oss o-rL \sssX %/ 25 r“-o riCHa—OH 27 201139461 6]化 24 ΓΕό ^ CIO— \^/oss o-rL \sssX %/ 25 r“-o ri
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o 觀 CHOo View CHO
-τό 9rf I-τό 9rf I
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31 Ο CH2—〇_c—^〉 ch3-ch2—c-ch2—o-c—^ \ CH-31 Ο CH2—〇_c—^> ch3-ch2—c-ch2—o-c—^ \ CH-
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(聚縮合酯系疏水化劑) 上述聚縮合酯系疏水化劑較佳為自至少一種具有芳香 環的二羧酸(亦稱為芳香族二羧酸)與至少一種平均碳數 29 201139461 為2.5〜8.0的脂肪族二醇而獲得。另外,自芳香族二羧酸 與至少一種脂肪族二羧酸的混合物、與至少一種平均碳數 為2.5〜8.0的脂肪族二醇而獲得亦較佳。 二羧酸殘基與 上述二羧酸殘基的平均碳數的計算是以 一醇殘基個別地進行。 將使上述二羧酸殘基的組成比(莫耳分率)與 數相乘所算出的值設為平均碳數,如,#由各%莫耳〇/ ^己二酸殘基與鄰苯二曱酸殘基構成時,平均碳數變成。 另外,上述二醇殘基的情況亦相同,將二醇殘基的平 均碳數設定為使二醇殘基的組成比(莫耳分率 乘所算出的值,如’當由5〇莫耳%的乙二醇 5〇莫耳%的1,2-丙二醇殘基構成時,平均碳 :、 =聚縮合酯的數量平均分子量較佳為5(^編, 進而更佳為700〜1200。若聚縮合醋的 = _以上,則揮發性變低,不易產生酿 障或步驟㈣延伸時的由高溫條件下的昇華所引起的模故 相二性# L染。另外,若為测以下,則與醯化纖維素的 今料冋,不易產生製膜時及加熱延伸時的渗出。 法谁縮:^的數量平均分子量可藉由凝膠滲透層析 ,卜兄7二^ H於末端不封端的聚醋多元醇的 Μ本書t,難是於將聚醋多元醇乙醯基 後’測疋過剩的乙酸財和所需的氫氧化鉀的量(mg)。 201139461 10.0 酸成族二舰無_二賊的混合物用作二幾 、較佳為二羧酸成分的碳數的平均為5 5 的二竣酸’更佳為5.6〜8。 光板若均為5.5以上,料獲㈣久性優異的偏 ^右鍵的平均為1G以下,顺化纖維素的相容性 優異,、於邮纖較_製騎程中可抑躲出的產生。 八略i A醇與3有芳香族二_《的二缓酸所獲得的聚縮 5酉曰中,包含芳香族二羧酸殘基。 ^本說明書中’所謂殘基’是指聚縮合S旨的部分結構, 且是指具㈣絲縮合g旨的單_频的部分結構。例 如,由一魏HOOC-R-COOH所形成的二㈣殘基為 -OC-R-CO- 〇 上述聚縮合酯的芳香族二羧酸殘基比率較佳為40 mol。/。以上’更佳為 4〇 mol%〜95 mol%。 ,由將芳香族二羧酸殘基比率設定為4〇 m〇1%以上, 可獲得顯現充分的光學各向異性的醯化_素膜,且可獲 得耐久性優異的偏光板。另外,若為%咖丨%以下則^ 纖維素酯的相容性優異,可使醯化纖維素膜的製膜時及加 熱延伸時亦難以產生滲出。 作為可用於上述聚縮合酯系疏水化劑的形成的芳香族 二羧酸,例如可列舉··鄰苯二甲酸、對苯二甲酸、間笨二 甲酸、1,5-萘一幾酸、ι,4-萘二幾酸、萘二叛酸、2心 萘二羧酸或2,6-萘二羧酸等。其中,較佳為鄰苯二甲酸、 對笨二甲酸、2,6-萘二羧酸,更佳為鄰苯二甲酸、對笨二 31 201139461 曱酸,進而更佳為對苯二曱酸。 於上述聚縮合酯中,形成源自用於混合的芳 酸的芳香族二羧酸殘基。 、〜羧 即,上述芳香族二叛酸殘基較佳為包含鄰笨二曱& 基、對笨二曱酸殘基、間苯二曱酸殘基中的至少一種馱殘 佳為包含鄰苯二曱酸殘基、對苯二甲酸殘基中的至少^ 種,進而更佳為包含對苯二曱酸殘基。 夕〜 藉由於形成上述聚縮合酯時的混合中使用對笨_甲知 作為芳香族二羧酸,可製成與醯化纖維素的相容性$ 異,於醯化纖維素膜的製膜時及加熱延伸時亦難以產说 出的醯化纖維素膜。另外,上述芳香族二羧酸可使用一種多 亦可使用兩種以上。當使用兩種時,較佳為使用 ’ 酸與對笨二甲酸。 冲本〜甲 藉由併用鄰苯二甲酸與對苯二甲酸這兩種芳香族二 酸’可使常溫下的聚縮合醋軟化,就操作變得容、= 而言較佳。 用^占 上述聚縮合酯的二羧酸殘基中的對苯二甲酸殘基 量較佳為40 mol%〜1〇〇 m〇i%。 3 ^藉由將對苯二甲酸殘基比率設定為4〇m〇1%以上, 獲传’4現充分的光學各向異性的醯化纖維素膜。 於自二醇與含有脂肪族二叛酸的二叛酸所獲 合酯中,包含脂肪族二鲮酸殘基。 歎縮 作為可形成上述聚縮合酯系疏水化劑的脂肪族 & ’例如可列舉:草酸m蘭、順丁婦^ 32 201139461 反丁=二酸、戊二酸、己二酸、庚二酸、辛二酸、壬二酸、 癸一酸、十二烷二羧酸或1>4_環己烷二羧酸等。 於聚縮合酯中,形成源自用於混合的脂肪 脂肪族二羧酸殘基。 後 脂肪族二羧酸殘基的平均碳數較佳為5.5〜10.0,更佳 為5.5 8.0,進而更佳為55〜7〇。若脂肪族二叛酸殘基 的平均碳數為削以下,則可減少化合物的加熱減量且 可防止由化纖維素網乾燥時的滲出所引起的步驟污毕被 ^為是原因的錄故_產生。另外,若脂_二缓酸殘 碳數為5·5以上,則相容性優異,聚縮合酯的析 出不易產生而較佳。 二翔萨’ i ^絲縮合S旨時駭合中,可使用—種脂肪族 琥轴可使用兩種以上,當使用兩種時,較佳為使用 酸。當於形成聚縮合8旨時的混合中使用一種 佳為使_酸。可將脂肪族二誠 容性的觀點^較佳成所期望的值’就與酿化纖維素的相 二:兩種或三種 酸與芳香族-較佳為使用各―種的脂肪族二敌 33 201139461 =族二賴。其相在於1於機二羧酸殘基的平均 =數的值1可使芳麵二紐殘基的含量變成較】 圍,並可提昇偏光片的耐久性。 祀 於自二醇與含有二賴的二紐賴得 中,包含二醇殘基。 Θθ 於本說明書中,由二醇ΗΟ_κ·-〇Η[所形成的二醇殘基 為-0-R-0-。 一作為形成聚縮合酯的二醇,可列舉芳香族二醇及脂肪 族一醇,上述疏水化劑中所使用的聚縮合酯較佳為至少由 脂肪族二醇形成。 α 一上述聚縮合酯較佳為包含平均碳數為2.5〜7.0的脂肪 知一醇殘基,更佳為包含平均碳數為2.5〜4.0的脂肪族二 醇殘基。若上述脂肪族二醇殘基的平均碳數小於7 〇,則 與=化纖維素的相容性制改善’不減生滲出,另外, β物的加熱減量難以增大,且不易產生酿化纖維素網乾 燥時的步驟汚綠認為是原因的©狀故障。另外,若脂肪 族一醇殘基的平均碳數為2 5以上,則合成較容易。 作為可形成上述聚縮合酯系疏水化劑的脂肪族二醇, 可列舉烷基二醇或脂環式二醇類作為較佳例,例如較佳 為.^二醇、1,2-丙二醇、1,3-丙二醇、1,2-丁二醇、υ-丁二醇、2_曱基_1,3-丙二醇、1,4-丁二醇、1,5-戊二醇、2,2_ 甲基丙一醇(新戊二醇)、2,2-二乙基-1,3_丙二醇 (3,3_二經甲基戊烷)、2-正丁基-2-乙基-1,3-丙二醇(3,3_ 一輕甲基庚燒)、3-曱基-1,5-戊二醇、1,6-己二醇、2,2,4- 34 201139461 一甲基-1,3-戊二醇、2-乙基_ι,3_己二醇、2_,其 醇?壬二醇、U0_癸二醇、⑶·十八燒_^=辛= 醇、環已烷二p醇等。該些較佳為與乙二— 一 或兩種以上的混合物。 # _作-種 更佳的上述脂肪族二醇為乙二醇、u-丙二醇、 η醇中的至少一種,特佳為乙二醇、以及】,2 合_,較佳為使用乙二醇、以… 1,2-丙一醇或U_丙二醇,可防止聚縮合酉旨的处曰;(polycondensation ester-based hydrophobizing agent) The polycondensation ester-based hydrophobizing agent is preferably from at least one dicarboxylic acid having an aromatic ring (also referred to as an aromatic dicarboxylic acid) and at least one average carbon number of 29 201139461 is 2.5. Obtained from ~8.0 aliphatic diol. Further, it is also preferably obtained from a mixture of an aromatic dicarboxylic acid and at least one aliphatic dicarboxylic acid, and at least one aliphatic diol having an average carbon number of from 2.5 to 8.0. The calculation of the average carbon number of the dicarboxylic acid residue and the above dicarboxylic acid residue is carried out individually as a monohydric alcohol residue. The value calculated by multiplying the composition ratio (mole fraction) of the above dicarboxylic acid residue by a number is set as an average carbon number, for example, #% Mohr/^ adipic acid residue and orthobenzene When the diterpene acid residue is composed, the average carbon number becomes. Further, in the case of the above diol residue, the average carbon number of the diol residue is set such that the composition ratio of the diol residue (the molar fraction is multiplied by the calculated value, such as 'when by 5 〇 mole When the % ethylene glycol 5 〇 mol% of the 1,2-propanediol residue is constituted, the average carbon number of the poly-carbon condensed ester is preferably 5 (^, more preferably 700 to 1200). If the polycondensation vinegar is above _, the volatility becomes low, and it is not easy to produce a cataract or step (4) when the extension is caused by sublimation under high temperature conditions, and if it is below the test, then It is not easy to produce bleed out during film formation and during heating and extension. The number average molecular weight of the method can be reduced by gel permeation chromatography, and the broach is not at the end. The end of the polystyrene polyol Μ book t, it is difficult to measure the excess acetic acid and the amount of potassium hydroxide (mg) after the polyacetate acetonitrile. 201139461 10.0 The mixture of no-two thieves is preferably used as a di-decanoic acid of more than 5, preferably a dicarboxylic acid component, having a carbon number of 5 5 or more preferably 5.6 to 8. If the plates are both 5.5 or more, the average yield of the (4) long-lasting right-key is 1 G or less, and the compatibility of the cis-cellulose is excellent, and it can be prevented from being escaping in the riding process. The aromatic dicarboxylic acid residue is contained in the polycondensed 5-anthracene obtained from the octa- i-alcohol and the tri-alcoholic acid. The term 'residue' in the present specification means polycondensation S. The partial structure of the present invention is a partial structure having a single-frequency of (4) silk condensation. For example, the di(tetra) residue formed by a Wei HOOC-R-COOH is -OC-R-CO- The ratio of the aromatic dicarboxylic acid residue of the condensed ester is preferably 40 mol% or more, more preferably 4 〇 mol% to 95 mol%, and the ratio of the aromatic dicarboxylic acid residue is set to 4 〇 m 〇. 1% or more, a bismuth-based film which exhibits sufficient optical anisotropy can be obtained, and a polarizing plate excellent in durability can be obtained. When the % curry% or less is satisfied, the compatibility of the cellulose ester is excellent. It is also difficult to cause bleed out during film formation and heating extension of the fluorinated cellulose film. As an aromatic urethane which can be used for the formation of the above polycondensation ester-based hydrophobizing agent Examples of the acid include phthalic acid, terephthalic acid, m-dicarboxylic acid, 1,5-naphthoic acid, iota-4-naphthoic acid, naphthalene dicarboxylic acid, and 2-naphthalene dicarboxylic acid. Acid or 2,6-naphthalenedicarboxylic acid, etc. Among them, preferred is phthalic acid, p-dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, more preferably phthalic acid, and puppet 31 201139461 曱More preferably, the acid is more preferably terephthalic acid. In the above polycondensation ester, an aromatic dicarboxylic acid residue derived from an aromatic acid used for mixing is formed. Preferably, at least one of the anthracene dioxime group, the p-dibenzoic acid residue, and the isophthalic acid residue is preferably an phthalic acid residue or a terephthalic acid residue. At least one of the compounds, and more preferably a terephthalic acid residue. In the case of mixing in the formation of the above-mentioned polycondensation ester, the use of the aromatic dicarboxylic acid as the aromatic dicarboxylic acid can be used to form a film with a deuterated cellulose. It is also difficult to produce a deuterated cellulose film at the time of heating and elongation. Further, the aromatic dicarboxylic acid may be used singly or in combination of two or more kinds. When two types are used, it is preferred to use 'acid and p-dicarboxylic acid. It is preferable to use a combination of two kinds of aromatic diacids of phthalic acid and terephthalic acid to soften the polycondensed vinegar at normal temperature. The amount of the terephthalic acid residue in the dicarboxylic acid residue of the above polycondensation ester is preferably 40 mol% to 1 〇〇 m〇i%. 3 ^ By setting the terephthalic acid residue ratio to 4 〇 m 〇 1% or more, a cellulose optical film having a sufficient optical anisotropy of '4 is obtained. An aliphatic diterpene acid residue is contained in the ester obtained from the diol and the diremediate acid containing an aliphatic diremediate acid. As the aliphatic & '', which can form the above-mentioned polycondensation ester-based hydrophobizing agent, for example, oxalic acid m-lan, cis-butan ^ 32 201139461 anti-butadiate = diacid, glutaric acid, adipic acid, pimelic acid And suberic acid, azelaic acid, decanoic acid, dodecanedicarboxylic acid or 1> 4-cyclohexanedicarboxylic acid. In the polycondensation ester, a fatty aliphatic dicarboxylic acid residue derived from the mixture is formed. The average carbon number of the post-aliphatic dicarboxylic acid residue is preferably from 5.5 to 10.0, more preferably 5.5 8.0, still more preferably from 55 to 7 Å. If the average carbon number of the aliphatic di-retensive acid residue is less than the cut, the heating reduction of the compound can be reduced and the step caused by the bleeding during the drying of the cellulose network can be prevented from being the cause of the failure. produce. Further, when the number of carbon residues of the lipid-bis-acid retardation is 5.5 or more, the compatibility is excellent, and precipitation of the polycondensation ester is less likely to occur, which is preferable. In the case of the second Xiangsa 'i ^ silk condensation S, it is possible to use two kinds of aliphatic amber shafts. When two types are used, it is preferred to use an acid. It is preferred to use an acid in the mixing at the time of forming the polycondensation. The idea of an aliphatic two-passibility can be preferred to the desired value 'in the second phase of the brewing cellulose: two or three acids and aromatics - preferably using the two aliphatics of each species 33 201139461 = Family second. The value of 1 in the average = number of the dicarboxylic acid residue of the organic dicarboxylic acid residue can make the content of the aromatic dinuclear residue become more uniform and improve the durability of the polarizer. The diol residue is contained in the diol and the diNide containing the ruthenium. Θ θ In the present specification, the diol residue formed by the diol ΗΟ κ κ 〇Η -0 is -0-R-0-. The diol which forms the polycondensation ester is exemplified by an aromatic diol and an aliphatic monool, and the polycondensation ester used in the above hydrophobizing agent is preferably formed of at least an aliphatic diol. The above-mentioned polycondensation ester is preferably a fatty alcohol residue having an average carbon number of 2.5 to 7.0, more preferably an aliphatic diol residue having an average carbon number of 2.5 to 4.0. When the average carbon number of the aliphatic diol residue is less than 7 〇, the compatibility with the cellulose is improved, and the amount of heat loss of the β substance is hardly increased, and the brewing is hard to occur. The step of drying the cellulose network is considered to be the cause of the problem. Further, when the average carbon number of the aliphatic-alcohol residue is 25 or more, the synthesis is easy. The aliphatic diol which can form the above-mentioned polycondensation ester-based hydrophobizing agent may, for example, be an alkyl diol or an alicyclic diol, and is preferably, for example, a diol or a 1,2-propanediol. 1,3-propanediol, 1,2-butanediol, υ-butanediol, 2-hydrazino-1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 2,2_ Methyl propanol (neopentyl glycol), 2,2-diethyl-1,3-propanediol (3,3-di-methylpentane), 2-n-butyl-2-ethyl-1 , 3-propanediol (3,3_-light methyl heptane), 3-mercapto-1,5-pentanediol, 1,6-hexanediol, 2,2,4-34 201139461 monomethyl-1 , 3-pentanediol, 2-ethyl_ι, 3-hexanediol, 2_, its alcoholic decanediol, U0-decanediol, (3)·Eight-fired _^=octane=alcohol, cyclohexane Two p alcohol and the like. These are preferably mixtures with two or more than two or more. More preferably, the above aliphatic diol is at least one of ethylene glycol, u-propylene glycol, and η alcohol, particularly preferably ethylene glycol, and 2, _, preferably ethylene glycol. 1,2-propanol or U_propanediol, can prevent the condensation of the purpose;
Γ=Γ,由用於混合的二醇形=醇殘基。 即’上述聚縮合酉旨較佳為包含乙二醇殘基、U 醇殘基、以及U-丙二醇殘基中的至 ,一:: 基,更佳為乙二醇殘基或H丙二醇殘基。㈣一醇殘 於上述聚縮合醋中所含有的脂肪族二醇殘基中,較佳 為包3 1G m〇1%〜刚福%的乙二醇殘基,更佳為包含加 mol% 〜100 mol%。 上述聚縮合_末端可科—直接作為二醇或艘 =可進而嫩酸類或單醇類反應來實施所謂的末端 的封端。 作為用於封端的單麟類,較佳為乙酸、丙酸、丁酸、 苯甲酸等。作為用於封端的單醇類,較佳為曱醇、乙醇、 丙醇、異丙醇、丁醇、異丁醇等’最佳為甲醇。若聚縮人 醋的末端所使用的單__碳數為7 物二 加熱減量不會增大,且不會產生 】化。物的 35 201139461 上述聚縮合醋的末端更佳為不進行封端而維持二醇殘 基的狀態、或者藉由乙酸或丙酸或苯甲酸進行封端。 上述聚縮合醋的兩末端分別不限封端的實施的有無為 相同的情況I。 當縮合物的兩末端未進行封端時,聚縮合輯較佳為聚 酯多元醇。 作為上述聚縮合醋的形態之一,可列舉脂肪族二醇殘 基的碳數為2.5〜8.0,且㈣合_林端未進行封端的 聚縮合醋。 當對聚縮合醋的兩末端進行封端時,較佳為使轉單 叛酸反應來進行封端L該聚縮合§旨的兩末端變成單 紐殘基。財1¾財巾,纟單_ R_⑽H所形成的單 紐殘基為R-ca。當藉由單魏對聚縮合g旨的兩末端進 行封端時,上述單舰較佳為脂職單紐殘基,單紐 殘基更佳為碳數為22以下的脂職單紐殘基,進而更佳 為碳數為3以下_祕單紐聽。另外,較佳為碳數 為2以上_誠單魏祕,為碳 單羧酴舜某。 作為上述聚縮合醋的形態之一,可列舉脂肪族二醇殘 基的碳數大於2.5且為7.0以·f,且聚縮合㈣兩末端由 單羧酸殘基封端的聚縮合酯。 若對聚縮合_兩末端進行封端的單紐殘基的碳數 為3以下,則揮發性下降,聚縮合_由加熱所引起的減 量不會增大,且可減少錄汚染的產生或錄轉的產生。 36 201139461 單幾ί 料紐類,触秘_單紐, 二減η 22的脂肪族單魏,•而更佳為 基肪族單賴,為碳數為2的脂肪族單 苯曱酸及其衍生物 例如,較佳為乙酸、丙酸、丁酸 等,更佳為乙酸或丙酸,最佳為乙酸。 用於封端的單羧酸亦可混合兩種以上。 上述雜合^旨的兩末端較佳為由乙酸或㈣封端 ^為猎由乙酸封端而使兩末端成為㈣基 為乙醯基殘基)。 、备已對上述聚縮合醋的兩末端進行封端時,可獲得 溫下的狀態不易成為S1體形狀,操作變得良好另外,兔 度穩定性、偏光板耐久性優異的醯化纖% ‘、 將上述聚縮合_具體例…= 膜載於下述表4 中,但並不限定於該些。 37 201139461 [表4] 二羧酸 二醇 末端 芳香族 二羧酸 脂肪族 二羧酸 二羧酸 (莫耳比) 二醇1 二醇2 二醇比 (莫耳比) A-1 TPA SA 45/55 乙二醇 丙二醇 45/55 乙醯基酯基 A-2 TPA SA 50/50 乙二醇 丙二醇 45/55 乙醯基酯基 A-3 TPA SA 55/45 乙二醇 丙二醇 45/55 乙醯基酯基 A-4 TPA SA 65/35 乙二醇 丙二醇 45/55 乙醯基酯基 A-5 TPA SA 55/45 乙二醇 丙二醇 25/75 乙醯基酯基 A-6 TPA SA 55/45 乙二醇 丙二醇 10/90 乙醯基酯基 A-7 2,6-NPA SA 50/50 乙二醇 丙二醇 45/55 乙醯基酯基 A-8 2,6-NPA SA 50/50 乙二醇 丙二醇 45/55 乙醯基酯基 A-9 TPA/PA SA 45/5/50 乙二酵 丙二醇 45/55 乙醯基酯基 A-10 TPA7PA SA 40/10/50 乙二醇 丙二醇 45/55 乙醯基酯基 A-11 TPA SA/AA 50/30/20 乙二醇 丙二醇 45/55 乙醯基酯基 A-12 TPA SA/AA 50/20/30 乙二醇 丙二醇 45/55 乙醯基酯基 A-13 TPA SA 50/50 乙二醇 丙二醇 25/75 乙醯基酯基 A-14 TPA SA 55/45 乙二醇 丙二醇 45/55 乙醯基酯基 Α·15 TPA SA 55/45 乙二醇 環己烷二甲醇 45/55 乙醯基酯基 Α-16 TPA SA 45/55 乙二醇 丙二醇 45/55 羥基 Α-17 TPA SA 50/50 乙二醇 丙二醇 45/55 羥基 Α-18 TPA SA 55/45 乙二醇 丙二醇 45/55 羥基 Α-19 TPA SA 65/35 乙二醇 丙二醇 45/55 羥基 Α-20 TPA SA 55/45 乙二醇 丙二醇 25/75 羥基 Α-21 TPA SA 55/45 乙二醇 丙二醇 10/90 羥基 Α-22 2,6-NPA SA 50/50 乙二醇 丙二醇 25/75 羥基 Α·23 2,6-NPA SA 50/50 乙二醇 丙二醇 25/75 羥基 Α-24 2,6-NPA SA 45/5/50 乙二醇 丙二醇 25/75 羥基 Α-25 2,6-NPA SA 40/10/50 乙二醇 丙二醇 25/75 羥基 Α-26 TPA SA/AA 50/30/20 乙二醇 丙二醇 25/75 羥基 Α-27 TPA SA/AA 50/20/30 乙二醇 丙二醇 25/75 羥基 Α-28 TPA SA 50/50 乙二醇 丙二醇 25/75 經基 Α-29 TPA SA 55/45 乙二醇 丙二醇 25/75 羥基 Α-30 TPA SA 55/45 乙二醇 環己烷二曱醇 25/75 羥基 Α-31 TPA SA 55/45 乙二醇 丙二醇 45/55 丙醯基酯基 Α-32 TPA - 100/0 乙二醇 丙二醇 50/50 羥基 Α-33 TPA - 100/0 乙二醇 丙二醇 40/60 乙醯基酯基 Α-34 TPA SA 50/50 乙二醇 丙二醇 45/55 笨曱醯基酯基 上述表4中的簡稱分別表示以下的化合物。PA :鄰笨 二曱酸,TPA :對苯二甲酸,AA :己二酸,SA :琥珀酸, 38 201139461 2,6-NPA : 2,6-萘二幾酸。 上述聚縮合酿的合成可藉由如下方法中的任一種方法 ===由常法所進行的二醇與二緩酸賴化 的熱熔融縮合法、或者該些酸的醯 縮合法。另外,關於上述聚縮合醋,於 =和:年3月,曰初版第!版發行t;= 载。另外’亦可利用曰本專利特開平〇5_ 專利特開平〇5-155810號、曰本專利特 本 姻94號、曰本專利特開平= 旒本專利特開200«42227號、日本專 跡〇〇3679號各公報等中所記載的素材。本專利特開 質量==的化纖維素,較佳為1 广性改良效果, 產生滲出。更佳的涞‘θ0θ r則亦難以 5質㈣i量。,^ 時間點一可於製二: (2)延遲顯現劑 劑,顯::r採用延遲顯現 (制。羊獲純〶的Re顯現性。延遲顯現 39 201139461 劑的種類並無特別限定,可列舉包含棒狀或圓盤狀化合物 者、或者上述非磷酸酯系的化合物之中表現出延遲顯現性 的化,物。作為上述棒狀或隱狀化合物,可將具有至少 2個芳香族環的化合物較佳地用作延遲顯現劑。 亦可併用1¾種以上的延遲顯現劑。 =k遲...員現劑較佳為於250 nm〜4〇〇 nm的波長區域具 有最大吸收,且較佳為於可腿域實f上不具有吸收。 作為延遲顯現材,可使用例如日本專利特開 _4-50516號公報、日本專利特開2〇〇7 86748號公報中所 圮載的化合物,但並不限定於該些。 作為圓盤狀化合物,亦可較佳地使用例如歐州專利申 j公開第0911656A2號說明書中所記載的化合物、日本專 =特開2〇〇3-344655號公報中所記載的三唤化合物、日本 利特開纖指592號公報_η〜[_]中所記載的聯 圓盤狀化合物可藉由例如日本專利特開2〇〇3_344655 魂公報中所記載的方法、日本專利特開應_13撕號公 報申所記載的方法等公知的方法而合成。 除上述圓盤狀化合物以外,亦可較佳地使用具有直線 =的分子賴的棒狀化合物,例如可難地㈣日本專利 =2_摘92號公報〜⑼η]巾所記制棒狀化 (3)丙埽酸系聚合物 於本發明的酿化纖維素膜中,亦可進而添加重量平均 201139461 分子量為500〜1〇,〇〇〇的丙烯酸系聚合物。較佳為重量平 均分子量為500〜5000。 右添加上述丙烯酸系聚合物,則製膜後的醯化纖維素 膜的透明性優異’透濕度雜低,作為偏光板用保護膜, 表現出優異的性能。關於上述丙騎絲合物,可較佳地 ❹國際公開W02__126535號公報中所記載的化合物。 (4) 抗氧化劑、抗熱劣化劑 ^於本發明中,作為抗氧化劑、抗熱劣化劑,可使用通 吊所知的抗氧化劑、抗熱劣化劑。尤其,可較佳地使用内 醋系、、硫系、I系、雙鍵系、受阻胺系、鱗系化合物。關 於上述抗氧化劑、抗熱劣化劑,可較佳地使用國際公開 WO2008-126535號公報中所記載的化合物。 (5) 著色劑 於本發明中,亦可使用著色劑。$色劑是指染料或顏 料,但於本發明中,是指具有將液晶畫面的色調變成藍色 調的,果或具有調整黃色指數、降低濁度的效果者。關於 上述著色劑’可較佳地使用國際公開WO2008-126535號公 報中所記载的化合物。 (6) 微粒子 作為本發明中所使用的微粒子,無機化合物的例子可 列舉.二氧化矽、二氧化鈦、氧化鋁、氧化鍅、酸 ^ 、黏土、锻燒高嶺土、鍛燒矽酸鈣、水合矽酸弼、矽 酸鋁、矽酸鎂及磷酸鈣。 Μ粒子為包含石夕者就降低濁度的觀點而言較佳,特佳 201139461 為二氧化矽。 一人的平均粒徑較佳為5mn〜5〇nm, 更,為7 nm〜2G nm ^該些微粒子較佳為主要作為粒徑為 0.05 μιη〜0·3 μιη的二次凝聚體來含有。 微粒子的一 纖維物生物财的該錄粒子的含量較佳為〇〇5 質量%叫質量%,特佳為…質量%〜〇5f量於利用 共洗鑄法的多層構成的纖維素衍生物賴情況下,較佳為 表面含有該添加量的微粒子。 一氧化石夕的微粒子可使用例如以Aerosii奶72、 R972V、R974、R812、200、200V、300、R202、0X50、 ΊΤ_ > NAX50 (以上為曰本Aerosil (股份)製造)的商 σσ名市售的微粒子。 氧化錯的微粒子可使用例如以Aerosii R976及R811 (以上為日本Aerosil (股份)製造)的商品名市售的微粒 子0 作為聚合物的例子’可列舉:矽樹脂、氟樹脂及丙烯 酸樹脂。較佳為矽樹脂,特佳為具有三維的網狀結構者, 可使用例如以 Tospearl 103、Tospearl 105、Tospearl 108、 Tospearl 120、Tospearl 145、Tospearl 3120 及 Tospearl 240 (以上為Toshiba Silicones(股份)製造)的商品名市售者。 該些之中,Aerosil 200V、Aerosil R972V因將纖維素 衍生物膜的濁度保持得較低,並且降低摩擦係數的效果較 大,故可特佳地使用。 (Ό其他添加劑 42 201139461 於本$明巾所使用_傾較财除上述 作=可添加於通常的酿化纖維素膜中的添加劑。 作為该二添加劑,例如可列舉紫外線吸收劑等。 關於上述其他添加舞】,可 购尊1細號公報切記載的化合物際』 <醯化纖維素膜的製造方法> 刺醯化纖維倾的方法並無_限制,可 么。、方法進行製膜。具體而言,可彻溶液洗铸製 y或熔融製觀對含有上賴化纖維素賴 、 膜的面狀的觀點而言,本發明的膜的製造妓較佳 製^的^溶喊難騎含有上賴化齡素的膜進行 胺^下’以使用溶錢鑄製膜法的情況為例對本發明的 膜Ϊ ίΐ法進行說明,但本發明並不限定於溶液洗鑄製 製關於使用上述熔融製膜法作為本發明的膜的 爰纪方法的情況,可使用公知的方法。 (聚合物溶液) 於溶液洗鑄製膜方法中,使用上述醯化纖維 ^含有各齡加_聚合物溶液(醯化_纽液)形成 $。以下,對可用於溶液洗鑄製膜方法的聚合物溶液(以 ,有時亦適宜地稱為醯化纖維素溶液)進行說明。 (溶劑) 使本發明中所使用的醯化纖維素溶解於溶劑中而形成 /雜物’然後將錢鑄於基材上㈣顏。由於必需在此 43 201139461 時擠出或於淹鑄後使溶劑蒸發,因此較佳為使用揮發性的 溶劑。 進而為不與反應性金屬化合物或觸媒等進行反應,且 不溶解澆鑄用基材的溶劑。另外,可混合使用兩種以上的 溶劑。 另外,亦可將能夠與醯化纖維素進行水解聚縮合的反 應性金屬化合物分別溶解於其他溶劑中後混合。 此處,將對上述醯化纖維素具有良好的溶解性的有機 溶劑稱為良溶劑,另外,將於溶解中顯現主要的效果,且 於其中大量地使用的有機溶劑稱為主(有機)溶劑或主要 的(有機)溶劑。 作為上述良溶劑的例子’除丙酮、甲基乙基_、環力 酮、環己_等_,錢糾(恤邮—削,thf)、 1,4-一姚、1,3·二氧姐、m氧基乙烧等峻類,^ 酸甲醋、曱酸乙醋、乙酸甲醋、乙酸乙醋、乙酸戊 :内自旨等外’可列舉甲基溶_、二曱基♦坐侧 ::::醯胺患一甲基乙醯胺、乙腈、二曱亞砜、環丁砜 烷、乙醯乙酸甲醋等,較佳為 、 土乙基酮、丙酮、乙酸曱基及二氣曱烷。 紐為赠雜財,紅財機 質量。/。〜40質量%的碳原子數為卜4的醇。貫“ 由將=====劑’該凝膠化_ 比率WΪ 體上後’溶劑開始蒸發且醇白 θ 、 *於支撐體上澆鑄醯化纖維素的摻雜4 44 201139461 物膜的稱謂設定為網)凝膠化,從而使自金篇 弟體上剝離變得容㈣凝膠化溶劑,#該些醇的比例少 亦具有促進非㈣有機溶劑騎化纖維素的溶解的作 用,亦具有抑制反應性金屬化合物的_化 上升的作用。 作為碳原子數為1〜4的醇,可列舉:甲醇、乙醇、正 =、異丙醇、正丁醇、第二丁醇、第三丁醇、丙二醇單 該些之中’就摻雜物的穩定性優異,沸點亦比較低, 亦良好,且無毒性等而言,較佳為⑽。該些有機 洛劑早獨對醯域維素不具有轉性,而稱為貧溶劑。 於本發明中’構成醯化纖維素膜的酿化纖維素含有經 =醋、酮等的氫鍵性的官能基,因此就減少自洗鎮支撐 剝離負荷的觀點而言,較佳為於總溶劑中含 =〜30質量%,更佳為7質量%〜25質量%,進而更佳為 10質量%〜20質量〇/〇的醇。 藉由難醇含量,可容_整拥本發明的製造方法 —w的醯化纖維素膜的Re或Rth的顯現性。具體而言, 2提昇醇含量、或者將後述的本發日_製造方法中的延 、則的乾燥溫度(熱處理溫度)設定得味低,可進一步 增大Re或Rth的到達範圍。 糾,於树财,対少量的水提高溶液黏度 二L燥時的濕膜㈣的織度、或者提高簡法祕時的 /雜物強度亦有效,例如可相對於整個溶液含有01質量 45 201139461 %〜5質量%,更佳為可含有〇j 為可含有0.2質量%〜2質量%。 〇 量/〇,特佳 關於可較佳地用作本發明中 合的例子,本專利特開 詳細協素會系=為,, 2001-1745, 2001年3月15 /開技報(公技編號 本發明的聚合物溶液中纖=二)。 量%〜4〇質量。/〇,更佳為1〇 f 較佳為5質 質量%〜30質量%。 質里/〇,最佳為15 溶 上i«化_素濃度能_ ,階段成為規定的濃度的 』维= 藉由使溶劑蒸發等;〜而14質/%)的溶液後, 漠度的、、容液德、隹>=農縮而,亦可於預先製備高 醯化纖維素的濃3降。。另外’亦可藉由加入添加劑來使 加劑的時期可根據添加劑的種類而適宜決定。 維素、容解成it,且將較佳的高分子化合物即醯化纖 溶的溶劑是二氣…乙基 使用乙酸甲Q的'劑。或者,亦可較佳地 奸马60 . 40〜95 : 5的混合溶劑。 (1 )溶解步驟 浴解步驟是於溶解蒼巾—面龄醯化雜素、添加 46 201139461 溶液中混合添加舰液來形成摻雜物的步驟。、、… 方法==:::;進=於常壓下進行溶解的 沸點以上加壓來進行溶解:::方法’於主溶劑的 9^95544 ^ θ 9_9555? ^ 法進 載,高Μ進行溶解的方法等各種溶解::號;=戶: 主溶劑㈣點以上加壓來進行溶朗方法。 ή 掺雜物t_化纖維素的濃度較 二 =:rr添加劑來 栗送至下H 材進仃喊,、聽後藉由送液 〈用、、ζ> Η 石。 (2)澆鑄步驟 旦澆鑄步驟是如下的步驟:藉由送液果(例如加壓型定 =齒輪栗)將摻雜物送至加壓模具中 帶’或者^的金屬滾筒等金屬切體上的賴位置上。 較調整模具的金屬口部分的狹縫形狀,且易於 =厚變付均勻的祕财。域模 τ字模等,任—者均可較佳地使用。金屬支撐體 201139461 為鏡面。為了提昇製膜速度,亦可於金屬支舰上設置2 台以上的加壓模具,將摻雜物量分割而形成多層。或者, 藉由同時祕紐摻雜物的魏鑄絲獲得積層結 亦較佳。 〜 (3) 溶劑蒸發步驟 溶劑蒸發步驟是於金屬支樓體上對網(將狀態為 化纖維素膜的完成品前的狀態,且仍含有許多溶劑者稱 ^網)進行加熱’並使溶·發至可自 = 剝離為止的步驟。 财網 於^職發時’有自酬钱的方紐/或 =背面藉由液體來傳熱的方法、自表背細射= 姑Γ 土方法等’但背面液體傳熱的方法因乾燥效率良好, 二ill外將該些方法組合的方法亦較佳。於背面液 ====== (4) 剝離步驟 … ,=驟是於_位置_在金屬支龍上溶劑已蒸 ===。將所制離的網送至下一步驟。再者,若進 := !的殘留溶劑量(下述式)過大,則 進離’ ’若於金屬支撐體上過於充分地乾燥後 進仃剝離’則網的-部分會於中途剝落。 量ί提昇製膜速度的方法(儘可能於殘留溶劑 忒ί %el ’ 11此可提昇製膜速度),有凝膠 casing。例如有向摻雜物中加入相對於酿化 48 201139461 纖維素的貧溶劑’將摻雜物澆鑄後進行凝膠化的方法,以 及降低金屬支稽'體的度來進行凝膠化的方法等。於金屬 支撐體上進行凝膠化來提昇剝離時的膜的強度,藉此可加 快剝離並提昇製膜速度。 金屬支撐體上的網的剝離時殘留溶劑量較佳為根據乾 燥條件的強弱、金屬支樓體的長度等而於5質量%〜15〇 質量%的範圍内剝離,但當於殘留溶劑量更多的時 行剝離時,藉由經濟速率與品質的兼顧來決定剝離時的殘 留溶劑量。於本發财’較佳為將該金屬支撐體上的剝離 位置的溫度設定成-5(TC〜4〇t,更佳為10°c〜4(rc ,最 佳為設定成15°C〜30。(:。 另外,較佳為將s亥剝離位置上的網的殘留溶劑量設定 成1〇質量%〜150質量%,更佳為設定成1〇質量%〜12〇 質量%。 殘留溶劑量可由下式表示。 殘留溶劑量(質量%) =[ (M-N) /N]xl〇〇 參於M疋網的任意時間點的f量,N是將質量為M 皆於110 C進行3小時乾燥時的質量。 (5)乾燥或熱處理步驟、延伸步驟Γ = Γ, from the diol form = alcohol residue used for mixing. That is, the above polycondensation is preferably composed of an ethylene glycol residue, a U alcohol residue, and a U-propanediol residue, a:: group, more preferably an ethylene glycol residue or an H-propylene glycol residue. . (4) The alcohol remains in the aliphatic diol residue contained in the polycondensed vinegar, preferably an ethylene glycol residue containing 3 1 G m 1% to just %, more preferably containing mol% 〜 100 mol%. The above polycondensation _ terminal can be directly used as a diol or a vessel = a further acid or a monool to carry out so-called end capping. As the monolin for capping, acetic acid, propionic acid, butyric acid, benzoic acid or the like is preferred. As the monool to be blocked, decyl alcohol, ethanol, propanol, isopropanol, butanol, isobutanol or the like is preferred as methanol. If the end of the polycondensed vinegar is used, the single __ carbon number is 7 and the heating loss does not increase and does not occur. 35 201139461 The end of the above polycondensed vinegar is more preferably a state in which the diol residue is maintained without capping, or is blocked by acetic acid or propionic acid or benzoic acid. The presence or absence of the end of the above-mentioned polycondensed vinegar is not limited to the same case I. When the both ends of the condensate are not blocked, the polycondensation is preferably a polyester polyol. One of the forms of the above polycondensed vinegar is a polycondensed vinegar having an aliphatic diol residue having a carbon number of 2.5 to 8.0 and a (tetra) conjugated end which is not blocked. When the both ends of the polycondensed vinegar are blocked, it is preferred to carry out the reaction of the transesterification reaction to carry out the end-capping. The 13⁄4 financial scarf, the single _ R_(10)H formed a single residue of R-ca. When the two ends of the polycondensation g are blocked by the single Wei, the above single ship is preferably a residue of a single bond, and the single residue is preferably a lipid residue having a carbon number of 22 or less. And, more preferably, the carbon number is 3 or less. Further, it is preferred that the carbon number is 2 or more. One of the forms of the above-mentioned polycondensed vinegar is a polycondensation ester in which the aliphatic diol residue has a carbon number of more than 2.5 and 7.0 to f, and the polycondensation (tetra) terminal is blocked by a monocarboxylic acid residue. When the carbon number of the single-nuclear residue which is blocked at both ends of the polycondensation is 3 or less, the volatility is lowered, the reduction of the polycondensation _ by heating does not increase, and the occurrence or recording of the recording contamination can be reduced. The production. 36 201139461 几 ί 纽 纽 纽 纽 纽 纽 纽 纽 纽 _ _ _ _ _ _ _ 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的 的The derivative is, for example, preferably acetic acid, propionic acid, butyric acid or the like, more preferably acetic acid or propionic acid, and most preferably acetic acid. The monocarboxylic acid used for blocking may be mixed in two or more types. Preferably, the two ends of the above heterozygous are terminated by acetic acid or (iv), and the ends are made of acetic acid and the two ends are (tetra)yl residues. When both ends of the above-mentioned polycondensed vinegar are capped, it is difficult to obtain a S1 body shape in a state of being warm, and the operation is good, and the stability of the rabbit and the durability of the polarizing plate are excellent. The above polycondensation _ specific example = = film is shown in Table 4 below, but is not limited thereto. 37 201139461 [Table 4] Dicarboxylic acid diol terminal aromatic dicarboxylic acid aliphatic dicarboxylic acid dicarboxylic acid (Morby) diol 1 diol 2 diol ratio (Mohr ratio) A-1 TPA SA 45 /55 ethylene glycol propylene glycol 45/55 ethyl decyl ester A-2 TPA SA 50/50 ethylene glycol propylene glycol 45/55 acetoxy ester group A-3 TPA SA 55/45 ethylene glycol propylene glycol 45/55 B Mercaptoester A-4 TPA SA 65/35 Ethylene Glycol Propylene Glycol 45/55 Ethyl Ester A-5 TPA SA 55/45 Ethylene Glycol Propylene Glycol 25/75 Ethyl Ester A-6 TPA SA 55 /45 Glycol propylene glycol 10/90 Ethyl sulphate A-7 2,6-NPA SA 50/50 Ethylene glycol propylene glycol 45/55 Ethyl sulphate A-8 2,6-NPA SA 50/50 Ethylene glycol propylene glycol 45/55 Ethyl ester base A-9 TPA/PA SA 45/5/50 Ethylene glycol propylene glycol 45/55 Ethyl ester base A-10 TPA7PA SA 40/10/50 Ethylene glycol propylene glycol 45/55 Ethyl Ester A-11 TPA SA/AA 50/30/20 Ethylene Glycol Propylene Glycol 45/55 Ethyl Ester A-12 TPA SA/AA 50/20/30 Ethylene Glycol Propylene Glycol 45/ 55 ethyl decyl ester A-13 TPA SA 50/50 ethylene glycol propylene glycol 25/75 ethyl decyl ester A-14 TPA SA 55/45 ethylene glycol propylene 45/55 Ethyl decyl hydrazide · 15 TPA SA 55/45 Ethylene glycol cyclohexane dimethanol 45/55 Ethyl decyl hydrazine - 16 TPA SA 45/55 Ethylene glycol propylene glycol 45/55 Hydroxyl hydrazine - 17 TPA SA 50/50 ethylene glycol propylene glycol 45/55 hydroxy hydrazine-18 TPA SA 55/45 ethylene glycol propylene glycol 45/55 hydroxy hydrazine-19 TPA SA 65/35 ethylene glycol propylene glycol 45/55 hydroxy hydrazine-20 TPA SA 55/45 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-21 TPA SA 55/45 ethylene glycol propylene glycol 10/90 hydroxy hydrazine-22 2,6-NPA SA 50/50 ethylene glycol propylene glycol 25/75 hydroxy hydrazine 23 2,6-NPA SA 50/50 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-24 2,6-NPA SA 45/5/50 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-25 2,6-NPA SA 40 /10/50 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-26 TPA SA/AA 50/30/20 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-27 TPA SA/AA 50/20/30 ethylene glycol propylene glycol 25/ 75 hydroxyindole-28 TPA SA 50/50 ethylene glycol propylene glycol 25/75 via Α-29 TPA SA 55/45 ethylene glycol propylene glycol 25/75 hydroxy hydrazine-30 TPA SA 55/45 ethylene glycol cyclohexane Sterol 25/75 hydroxy hydrazine-31 TPA SA 55/45 ethylene glycol propylene glycol 45/55 propyl decyl hydrazide -32 TPA - 100/0 ethylene glycol propylene glycol 50/50 hydroxy hydrazine-33 TPA - 100/0 ethylene glycol propylene glycol 40/60 ethoxylated hydrazine-34 TPA SA 50/50 ethylene glycol propylene glycol 45/55 The abbreviated group of the above-mentioned Table 4 represents the following compounds, respectively. PA: o-bromic acid, TPA: terephthalic acid, AA: adipic acid, SA: succinic acid, 38 201139461 2,6-NPA: 2,6-naphthalenediic acid. The above polycondensation can be synthesized by any one of the following methods: === a hot melt condensation method of a diol and a dibasic acid lysate by a usual method, or a hydrazine condensation method of the acid. In addition, regarding the above-mentioned polycondensed vinegar, in = and: in March of the year, the first version of the 曰 first edition is issued t; In addition, you can also use the patent special opening 〇5_ patent special Kaiping 〇5-155810, 曰本专利特本姻94号, 曰本专利特开平= 旒本专利特开200«42227号, Japan's special 〇 The material described in each of the publications No. 3679 and the like. The cellulose of this patent having a mass == is preferably a broad improvement effect, and oozing occurs. A better 涞 θθθ r is also difficult for 5 mass (four) i. , ^ Time point can be produced in two: (2) delayed development agent, show:: r using delayed development (prepared. Sheep obtained pure 〒 Re manifestation. Delayed appearance 39 201139461 The type of agent is not particularly limited, In the case of a rod-like or disc-shaped compound or a compound of the above-mentioned non-phosphate-based compound, a compound having a delayed developability is exemplified. As the rod-like or cryptic compound, at least two aromatic rings may be used. The compound is preferably used as a retardation-developing agent. It is also possible to use more than 13⁄4 kinds of retardation-developing agents in combination. The =k-delay agent preferably has a maximum absorption in a wavelength region of 250 nm to 4 〇〇 nm, and It is preferable that the compound which is carried out in the leg leg region is not absorbed. As the retardation-appearing material, for example, a compound described in Japanese Patent Laid-Open No. Hei. No. Hei. No. Hei. However, it is not limited to these. As the disc-shaped compound, for example, a compound described in the specification of European Patent Application No. 0911656A2, and Japanese Patent Laid-Open No. Hei 2-344655 The three-calling compound recorded in Japan The open disc-shaped compound described in Japanese Laid-Open Patent Publication No. 592- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ It is synthesized by a known method such as the method described in the Japanese Patent Application. In addition to the above-mentioned disc-shaped compound, a rod-like compound having a linear = molecule can be preferably used, for example, it is difficult to (4) Japanese Patent = 2_ In the fermented cellulose film of the present invention, the weight average of 201139461 may be further added to a molecular weight of 500 to 1 〇, 〇〇〇 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 3 3 3 3 3 3 3 3 3 The acrylic polymer preferably has a weight average molecular weight of 500 to 5000. When the acrylic polymer is added to the right, the cellulose-deposited cellulose film after the film formation is excellent in transparency, and the moisture permeability is low, and it is used as a polarizing plate. The film exhibits excellent performance. The compound described in the publication No. WO 02__126535 is preferably used in the above-mentioned gamma-stretching compound. (4) An antioxidant and a heat-resistant deterioration agent are used in the present invention as an anti-oxidation agent. Oxidant, heat resistance An antioxidant or a heat-resistant deterioration agent known in the art can be used. In particular, an internal vinegar system, a sulfur system, a I system, a double bond system, a hindered amine system, or a squamous compound can be preferably used. The heat-deteriorating agent can be preferably a compound described in WO 2008-126535. (5) Coloring agent In the present invention, a coloring agent can also be used. The coloring agent means a dye or a pigment, but In the present invention, it means that the color tone of the liquid crystal screen is changed to a blue hue, and the effect of adjusting the yellow index and reducing the haze is considered. The above-mentioned coloring agent 'is preferably used in the international publication WO2008-126535. The compound described. (6) Microparticles As the fine particles used in the present invention, examples of the inorganic compound include cerium oxide, titanium oxide, aluminum oxide, cerium oxide, acid, clay, calcined kaolin, calcined calcium citrate, and hydrated citric acid. Bismuth, aluminum citrate, magnesium citrate and calcium phosphate. The ruthenium particles are preferred from the viewpoint of reducing the turbidity in the case of the stone shovel, and the particularly good 201139461 is ruthenium dioxide. The average particle diameter of one person is preferably 5 nm to 5 Å, and more preferably 7 nm to 2 G nm. The fine particles are preferably mainly contained as secondary aggregates having a particle diameter of 0.05 μm to 0.3 μm. The content of the recorded particles of a fibrous material of the microparticles is preferably 〇〇5 mass%, which is called mass%, and particularly preferably, the mass%~〇5f amount is a cellulose derivative composed of a multilayer of a co-washing method. In this case, it is preferred that the surface contains the added amount of fine particles. As the oxidized particles of the oxidized stone, for example, the sigma of the Aerosii milk 72, R972V, R974, R812, 200, 200V, 300, R202, 0X50, ΊΤ _ > NAX50 (the above is manufactured by Sakamoto Aerosil (share)) Microparticles for sale. For example, an example of a polymer which is commercially available as a polymer, such as Aerosii R976 and R811 (the above is manufactured by Japan Aerosil Co., Ltd.), is used as an example of a polymer. Examples thereof include an anthracene resin, a fluororesin, and an acrylic resin. It is preferably an anthracene resin, particularly preferably a three-dimensional network structure, and can be used, for example, in Tospearl 103, Tospearl 105, Tospearl 108, Tospearl 120, Tospearl 145, Tospearl 3120 and Tospearl 240 (above, Toshiba Silicones) The trade name of the marketer. Among these, Aerosil 200V and Aerosil R972V are particularly preferably used because the turbidity of the cellulose derivative film is kept low and the friction coefficient is lowered. (ΌOther additives 42 201139461 used in the present invention. In addition to the above, the additive can be added to a normal brewing cellulose film. Examples of the two additives include ultraviolet absorbers and the like. Other additions, the method of producing a compound of the sulphated cellulose film can be purchased as follows. <Manufacturing method of bismuth cellulose film> The method of tilting the locust fiber is not limited, and the method can be used for film formation. Specifically, the film of the present invention can be easily produced by the method of lysing the solution y or by melting to obtain the surface of the film containing the lysine lysate and the film. The film Ϊ ΐ method of the present invention is described by taking the case of using a film containing lyopoietin to carry out the method of using the solvent-casting film method. However, the present invention is not limited to the solution washing process. Film forming method As a method of the film of the present invention, a known method can be used. (Polymer solution) In the solution washing and film forming method, the above-mentioned deuterated fiber is used to contain each age plus polymer solution (醯化_纽液) form $ Hereinafter, a polymer solution (which may be sometimes referred to as a deuterated cellulose solution) which can be used in a solution washing and film forming method will be described. (Solvent) The cellulose deuterated cellulose used in the present invention is dissolved in Forming / miscellaneous in the solvent' and then casting the money on the substrate (4). Since it is necessary to extrude the solvent at this time, or to evaporate after the flooding, it is preferred to use a volatile solvent. A solvent which reacts with a reactive metal compound or a catalyst, and does not dissolve the substrate for casting. Further, two or more solvents may be used in combination. Further, a reaction capable of undergoing hydrolysis and polycondensation with deuterated cellulose may be employed. The organic metal compound is dissolved in another solvent and mixed. Here, the organic solvent having good solubility to the above-described deuterated cellulose is referred to as a good solvent, and in addition, a main effect is exhibited in the dissolution, and a large amount thereof is present therein. The organic solvent used is referred to as a main (organic) solvent or a main (organic) solvent. As an example of the above good solvent, 'except acetone, methyl ethyl ketone, cyclohexanone, cyclohexyl _ et al _, Qian Jing (shirt mail - cut, thf), 1,4-Yao, 1,3 dioxin, m oxy ethene, etc., ^ acid vinegar, vinegar vinegar, acetic acid Methyl vinegar, ethyl acetate, acetic acid pentane: internal self-purpose, etc. 'Methyl soluble _, dimercapto ♦ sitting side:::: decylamine suffers from monomethyl acetamide, acetonitrile, disulfoxide, Sulfolane, acetamidine acetate, etc., preferably, tert-ethyl ketone, acetone, decyl acetate and dioxane. New Zealand is a gift of miscellaneous wealth, red money machine quality. / 40% by mass of carbon atoms The number of alcohols is 4. The gelation of the agent = "===== agent' _ ratio W Ϊ after the solvent begins to evaporate and the alcohol white θ, * doping the cellulose on the support 4 44 201139461 The title of the film is set to gel), so that the peeling from the gold body is allowed to become (4) gelling solvent, #The proportion of these alcohols is small and also promotes the non-(four) organic solvent riding fiber The action of the dissolution of the element also has the effect of suppressing the increase in the oxidization of the reactive metal compound. Examples of the alcohol having 1 to 4 carbon atoms include methanol, ethanol, positive =, isopropanol, n-butanol, second butanol, third butanol, and propylene glycol. It is excellent in stability, low in boiling point, good in toxicity, and non-toxic, etc., preferably (10). These organic agents have not been reversible in the early days, but are called poor solvents. In the present invention, the brewing cellulose constituting the cellulose-deposited cellulose film contains a hydrogen-bonding functional group such as vinegar or ketone. Therefore, from the viewpoint of reducing the peeling load of the self-washing town, it is preferable to The solvent contains = 30% by mass, more preferably 7% by mass to 25% by mass, still more preferably 10% by mass to 20% by mass of hydrazine. By the difficult alcohol content, the reproducibility of Re or Rth of the deuterated cellulose film of the manufacturing method of the present invention can be accommodated. Specifically, the alcohol content is increased, or the drying temperature (heat treatment temperature) in the later-described production method of the present invention is set to be low, and the reach of Re or Rth can be further increased. Correction, Yu Shucai, 対 a small amount of water to improve the viscosity of the solution when drying the wet film (4), or to improve the short-term secret / debris strength is also effective, for example, can be 01 mass 45 relative to the entire solution 2011387461 %〜5质量%, more preferably 〇j is contained in an amount of 0.2% by mass to 2% by mass. 〇 〇 〇 特 特 特 特 特 特 特 特 特 特 特 特 特 特 特 特 本 本 本 本 本 本 本 本 本 本 本 本 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 2001 Numbered in the polymer solution of the invention, fiber = two). Quantity %~4〇 quality. More preferably, 1 〇 f is preferably 5 mass% to 30 mass%. In the mass / 〇, the best is 15 dissolved on the i«化_素 concentration energy _, the stage becomes the specified concentration of the dimension = by evaporation of the solvent, etc.; ~ and 14 mass /%) of the solution, the , Rongrong De, 隹 > = agricultural shrinkage, can also be prepared in advance to prepare high concentration of bismuth cellulose. . Further, the period of the additive may be appropriately determined depending on the kind of the additive by adding an additive. The vitamin, the solution is made into it, and the preferred polymer compound, that is, the solvent for the deuterated fibril, is a gas of ethylene. Alternatively, it is also preferable to rape the horse 60. 40~95: 5 mixed solvent. (1) Dissolution step The bathing step is a step of forming a dopant by dissolving the wipes, the age-old sputum, and adding 46 201139461 solution to add a ship fluid. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Dissolution method and other various dissolution:: No.; = household: The main solvent (four) points above the pressure to carry out the dissolution method. ή The concentration of the dopant t_cellulose is lower than the second =: rr additive to the lower H material into the shout, and after listening to the liquid <use, ζ> Η stone. (2) Casting step The casting step is a step of feeding the dopant to a metal cutting body such as a metal roller with a ' or ^ in a press mold by a liquid feeding fruit (for example, a press type = gear pump) Lai position. The shape of the slit of the metal mouth portion of the mold is adjusted, and it is easy to change the thickness of the mold. Any of the domain mode τ fonts and the like can be preferably used. Metal support 201139461 is a mirror surface. In order to increase the film forming speed, two or more press molds may be provided on the metal ship, and the amount of the dopant may be divided to form a plurality of layers. Alternatively, it is preferred to obtain a laminate by the Wei cast wire of the simultaneous secret dopant. ~ (3) Solvent evaporation step The solvent evaporation step is to heat and dissolve the mesh on the metal slab (the state before the finished product of the cellulose film, and still contains many solvents) • Send to a step that can be taken from = stripping. In the case of the job, the financial system has a self-rewarding method, or a method of heat transfer by liquid on the back side, and a method of heat transfer from the back surface of the surface. Good, the method of combining these methods is also preferred. In the back liquid ====== (4) Stripping step ... , = is in the _ position _ on the metal dragon has been steamed ===. The separated net is sent to the next step. In addition, if the amount of residual solvent (the following formula) of := is too large, if the detachment is too sufficiently dried on the metal support and then peeled off, the portion of the mesh will peel off in the middle. The method of increasing the film forming speed (as much as possible with the residual solvent 忒ί %el '11 can increase the film forming speed), and has a gel casing. For example, a method of gelling a dopant after casting a dopant with respect to the poor solvent of the brewing 48 201139461 cellulose, and a method of reducing the degree of the metal branching to gelation are added to the dopant. . Gelation is carried out on the metal support to increase the strength of the film at the time of peeling, whereby the peeling can be accelerated and the film forming speed can be increased. The amount of residual solvent in the peeling of the mesh on the metal support is preferably in the range of 5 mass% to 15 mass% depending on the strength of the drying conditions, the length of the metal branch body, etc., but the amount of residual solvent is more In the case of a lot of time peeling, the amount of residual solvent at the time of peeling is determined by the balance between the economic rate and the quality. Preferably, the temperature at the peeling position on the metal support is set to -5 (TC~4〇t, more preferably 10°c~4 (rc, optimally set to 15 °C~ 30. Further, it is preferable to set the residual solvent amount of the mesh at the s-black peeling position to 1% by mass to 150% by mass, more preferably 1% by mass to 12% by mass. The amount can be expressed by the following formula: The amount of residual solvent (% by mass) = [(MN) /N]xl〇〇 The amount of f at any time point of the M疋 network, and N is the mass of M at 110 C for 3 hours. Quality during drying. (5) Drying or heat treatment step, extension step
夾具夾持網的兩端來進行搬 送的拉幅裝置對網進行乾燥。 燥裝置 49 201139461The tenter holding the both ends of the net to carry the web is dried by a tenter device. Drying device 49 201139461
TgXdr行熱ΐ理時’該熱處理溫度未滿 鐘4外特鐘較/右為。3°分鐘以下’更佳為2〇分 存在 可於膜搬送方向(以下,亦稱為 :向:交的方向(以下,亦稱為橫方向心=: 申’但就顯賴魅的延遲峨點而言較^ 交方向上延伸。更佳為於縱及橫方向上雙轴延伸者二 能夠以1段來實施,亦能夠以多段來實施。 。申 f膜搬送方_延伸時騎伸倍輪 i佳為〇〜15%,特佳為卜·。上述延伸時_=維 素網的延伸倍率(伸長率)可藉由金_跑 拉速度)的周速差而達成。例== 2個夾輥的裝置時’藉由使出口側的夹輥的旋= 快於)Π側的夾輥的旋轉速度,可使醯化 方向(縱方向)上較佳地延伸。藉、於搬送 整延遲的顯現性。 藉由進仃此種延伸,可調 再者’此處的「延伸倍率(%)」是指藉由下式所求出 •""β 50 201139461 的長==長T “延伸後的長度)-(延伸前 為送方向正交的方向的延伸時的延伸倍率較佳 *’、、 ° ’更佳為10%〜50°/〇,特佳為20%〜40%。 者於本發日种,作為在與雌送方向正交的方向 ♦的方去,較佳為使用拉幅裝置來進行延伸。 拉〜進行雙轴延伸時,於縱方向上,亦可緩和至例如〇.8 么a 4» I來獲得所期望的延遲值。延伸倍率是對應於作 ίΐίΪ光學特㈣設定。糾,當製造本發明的醯化纖 維素膜時’亦可於長度方向上進行單軸延伸。 。,伸時的溫度較佳為Tg_5t〜Tg+⑴。C,更佳為 二二Tg + 5°C ’特佳為Tg.-5°C〜Tg + 3t。藉由於此種 /皿又έ岐膜延伸,可降低本發明的朗濁度而較佳。 、—再f亦可於延伸步驟後進行乾燥。當於延伸步驟後 進=乾燥時’乾燥溫度、錢風量及賴時間根據所使用 ^ ^齊丨而T同’只要對應於使用溶劑的種類、組合而適宜 i選擇乾燥條件即可。於本發明巾,就提昇將本發明的膜 組裝入液晶顯林置時的正面對比度的觀點*言,較佳為 «申步驟後的乾燥溫度低於延伸步驟的延伸溫度。 (6)捲取 較佳為以使如上述般獲得的膜的長度於每1輥上為 100 m〜10000 m的方式進行捲取,更佳為500 m〜7000 51 201139461 m,進而更佳為looo m〜6000 m。膜的寬度較佳為〇 5 m 〜5.0 m,更佳為10^^3.0 m,進而更佳為1〇m〜25m。 捲取時,較佳為至少對一端賦予滾花,滾花的寬度較佳為 3 mm〜50 mm,更佳為5 mm〜30 mm’高度較佳為〇5阿 〜500 μηι,更佳為1μιη〜2〇〇μιη。其可為單面按壓,亦可 為雙面按壓。 本發明的膜尤其適合用於大晝面液晶顯示裝置。當用 作大晝面用液晶顯示裝置用的光學補償膜時,較佳為二如 將膜寬度成形為1470mm以上。另外,本發明的膜不僅包 括切斷成可直接組裝入液晶顯示裝置的大小的膜片形態的 祺,亦包括藉由連續生產而製作成長條狀,並捲成輥^的 形態的膜。後者的形態的膜是於該狀態下進行保管、搬送 等,當實際組裝入液晶顯示裝置時或與偏光片等貼合時, ,斷成所期望的大小來使用。另外,於以長條狀的狀態與 I含同樣製作成長條狀的聚乙烯醇膜等的偏光片等貼合 後’實際組裝人液晶顯示裝置時’切斷成所期望的大小^ =用。作為捲成輥狀的膜的—形態,可列舉捲成概長為 500 m以上的輥狀的形態。 可將以上述料得_娜,而獲得作為最終完 战物的醯化纖維素膜。 <酿化纖維素膜的特性> (渴度) 本發日月的醯化纖維素難佳為丨片膜㈣度為⑽以 更佳為〇·4%以下,特佳為〇〜〇扣%。 52 201139461 (醯化纖維素臈的玻璃轉移溫度Tg) 於本㈣書巾’所制化纖維素 巧,是指包含構成膜的酿化纖維素 破 的膜整體的玻璃轉移溫度(以下_為!^、其他添加劑 (延遲) (55ί)的波長55G η"1下賴厚方㈣延遲值Rth =〇較佳,〇 nm〜50 nm,更佳為2。nm〜4。M,特 佳為25 nm〜35 nm。 更佳為雙軸性 另外,本發明的膜較佳為雙軸性的膜, 的光學補償膜。 、 此處,所謂膜為雙軸性’是指膜的n 内的慢軸方向的折射率,ny表示面内與ηχ正二 方向的折射率,ηζ表示與狀及町正交的方向的折射率) 各不相同的情況,於本發明的情況下,更佳為…心虹。 f發明的賴現雙軸性的光學雜於減少液晶顯示裝 置,尤其VA模式液晶顯示裝置中的自斜方向觀察時的色 移的問題方面是較佳的特性。 本說明書中的ReU)、Rth⑴分別表示波長人下的 面内的延遲及厚度方向的延遲。於本案說明#中,當並無 特別記載時,將波長人設定為59〇nm<>ReU)是於^ 21ADH (王子計測機器(〇ji Sdentific細軸咖)(股份) 製造)中使波長λ nm的光朝膜法線方向射入來測定。關 於Rth (λ),相對於將面内的慢軸(由KOBRA 21ADH判 斷)作為傾斜軸(旋轉轴)(當不存在慢軸時,將膜面内的 53 201139461 任意的方向設定為旋純)_ u度為止每隔1G度分別自二射 腿的光,測定全部6個點 /⑽入波長λ 根據所測定的延遲值盥平^^/6(λ),κο·21ΑΟΗ 削(當不存在丄傾斜抽(旋 個方向測定延遲值,根據該值與平均折 mm輸人的膜厚值,由以下的式(a)及式 算出λ。此處’平均折射率的假定值可使用p吻贿 Handbook (JOHNwiley&s〇ns,聰)、各種光學膜的目 錄的值。對於平均折射率的值未知者,可藉由阿貝折射計 進行測定。以下例示主要的光學膜的平均折射率的值:醯 化纖維素(1.48)、環烯烴聚合物(152)、聚碳酸酯〇 59)、 聚甲基丙烯酸甲g旨(1.49)、聚苯乙烯(159)。藉由輸入 該些平均折射率的假定值與膜厚,K〇BRA 21ADH算出 nx、ny、nz。根據所算出的nx、ny、nz而進一步算出Nz =(nx-nz ) / ( nx-ny )。 [數1] 式(A)When TgXdr is heat-treated, the heat treatment temperature is less than the time of the bell 4 and the right clock is right/right. 3° minutes or less 'better 2 points are available in the film transport direction (hereinafter, also referred to as: direction: the direction of the intersection (hereinafter, also referred to as the horizontal direction of the heart =: Shen's but the delay of the charm) The point is extended in the direction of the intersection. It is more preferable that the two-axis extension in the longitudinal and lateral directions can be implemented in one stage, and can also be carried out in multiple stages. The application of the film transfer method is extended. The wheel i is preferably 1515%, especially good for 卜·. The extension ratio (elongation ratio) of the _= weisu net can be achieved by the circumferential speed difference of the gold _ running speed when the above extension is extended. Example == 2 In the case of the nip roller device, the squeezing direction (longitudinal direction) is preferably extended by the rotation speed of the nip roller on the side of the nip by the squeezing roller on the outlet side. By borrowing, the whole delay is manifested. By extending this extension, the "extension ratio (%)" here is determined by the following formula: • ""β 50 201139461 Length == Long T "Extended Length) - (the extension ratio in the direction in which the direction of the feed direction is orthogonal before stretching is preferably *', and °' is preferably 10% to 50 ° / 〇, particularly preferably 20% to 40%. It is preferable to use a tenter to extend in the direction orthogonal to the direction in which the female is fed. Pulling is performed in the longitudinal direction and can be relaxed to, for example, 〇. 8 a 4» I to obtain the desired retardation value. The stretch ratio is corresponding to the optical (4) setting. Correction, when manufacturing the cellulose-deposited cellulose film of the present invention, can also be uniaxially extended in the longitudinal direction. The temperature at the time of stretching is preferably Tg_5t~Tg+(1). C, more preferably two or two Tg + 5°C 'excellently Tg.-5°C~Tg + 3t. The ruthenium film extension can reduce the turbidity of the present invention, and is preferably further dried after the stretching step. When the drying step is followed by drying, the drying temperature is The air volume and the aging time may be selected according to the type of the solvent used, and the drying condition may be selected as long as it corresponds to the type and combination of the solvent to be used. In the invention, the film of the present invention is assembled into the liquid crystal display. The viewpoint of the front contrast ratio at the time of setting is preferably that the drying temperature after the step is lower than the stretching temperature of the stretching step. (6) The winding is preferably such that the length of the film obtained as described above is 1 roller per roll. The winding is carried out in a manner of 100 m to 10000 m, more preferably 500 m to 7000 51 2011 39461 m, and further preferably looo m to 6000 m. The width of the film is preferably 〇 5 m to 5.0 m, more preferably 10^^3.0 m, and more preferably 1〇m~25m. When winding, it is preferred to impart knurling to at least one end, and the width of the knurling is preferably 3 mm to 50 mm, more preferably 5 mm to 30 mm. The mm' height is preferably 〇5 Å to 500 μηι, more preferably 1 μm 〜2 〇〇μιη. It may be single-sided pressing or double-sided pressing. The film of the invention is particularly suitable for large-surface liquid crystal display. When used as an optical compensation film for a liquid crystal display device for a large facet, it is preferred to Further, the film of the present invention includes not only a crucible which is cut into a film form which can be directly incorporated into a liquid crystal display device, but also a form in which a strip is formed by continuous production and rolled into a roll. The film of the latter form is stored and transported in this state, and when it is actually incorporated in a liquid crystal display device or bonded to a polarizer or the like, it is cut into a desired size and used. The strip-shaped state is bonded to a polarizer such as a polyvinyl alcohol film which is formed into a strip shape in the same manner, and 'when the liquid crystal display device is actually assembled' is cut into a desired size. The form of the film wound into a roll shape is a roll form having a roll length of 500 m or more. A deuterated cellulose film as a final event can be obtained by the above-mentioned material. <Characteristics of the brewed cellulose film> (Thirst) The cellulose of the present day is difficult to be a film of the enamel film (four) degree is (10) or more preferably 〇·4% or less, and particularly preferably 〇~〇 buckle%. 52 201139461 (The glass transition temperature Tg of the deuterated cellulose crucible) The cellulose produced by the (4) book towel's is a glass transition temperature of the entire film containing the brewing cellulose which constitutes the film (hereinafter _ is! ^, other additives (delay) (55 ί) wavelength 55G η " 1 赖 厚 厚 (4) retardation value Rth = 〇 better, 〇 nm ~ 50 nm, more preferably 2. nm ~ 4. M, especially good 25 nm ~ More preferably, the film of the present invention is preferably a biaxial film, an optical compensation film. Here, the film is biaxial, which means a slow axis direction in the film. The refractive index, ny represents the refractive index in the in-plane and the ηχ-positive direction, and ηζ represents the refractive index in the direction orthogonal to the shape and the ridge.) In the case of the present invention, it is more preferable. The invention of the present invention is advantageous in that it reduces the color shift of the liquid crystal display device, particularly in the VA mode liquid crystal display device, when viewed from the oblique direction. In the present specification, ReU) and Rth(1) respectively indicate the in-plane retardation and the retardation in the thickness direction of the wavelength person. In the description # in this case, when there is no special description, the wavelength is set to 59 〇 nm <> ReU) to make the wavelength in ^ 21 ADH (manufactured by the prince measuring machine (〇ji Sdentific fine axis coffee) (share)) The light of λ nm was incident on the normal direction of the film and measured. Regarding Rth (λ), the slow axis (determined by KOBRA 21ADH) is used as the tilt axis (rotation axis) (when there is no slow axis, the arbitrary direction of 53 201139461 in the film plane is set to be pure) _u degrees until every 1G degree of light from the two legs, measuring all 6 points / (10) into the wavelength λ according to the measured delay value ^ flat ^ ^ / 6 (λ), κο · 21 削 (when there is no丄 抽 抽 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( Bribe Handbook (JOHNwiley & s〇ns, Satoshi), the value of the catalogue of various optical films. For the unknown value of the average refractive index, it can be measured by an Abbe refractometer. The average refractive index of the main optical film is exemplified below. Values: deuterated cellulose (1.48), cycloolefin polymer (152), polycarbonate 〇 59), polymethyl methacrylate (1.49), polystyrene (159). By inputting these average refractions The assumed value of the rate and the film thickness, K〇BRA 21ADH calculates nx, ny, nz. According to the calculated nx, Ny = (nx - nz ) / ( nx - ny ) is further calculated by ny and nz. [Equation 1] Formula (A)
Re⑷=Re(4)=
’sin(-0)‘sin(-0)
此處’上述Re (Θ)表示自法線方向傾斜角度θ的方 54 201139461 表示折射率橢球的各主軸方位Here, the above Re (Θ) represents the angle of inclination θ from the normal direction. 54 201139461 represents the principal axis orientation of the index ellipsoid
Rth= C(nx + ny) /2-nz) xd 式(B) 必需,其 「阿貝折 ,者,此時,平均折射率n作為參數而成為 使用藉由阿貝折射計(AtagG (股份)公司製 射計2-T」)所測定的值。 (含水率) 本發明的跡饥、㈣減8G%下的平衡含 低,就當舰晶顯示面板大畫面化時,相對於環境濕度變 化’該保制成為緩衝體而可使偏光㈣部的濕化 中央部與端部均勻化而言較佳。 (透濕度) 就偏光板耐久性與偏光板加工時的乾燥的觀點而言, 本發明的膜的換算成膜厚4G μιη的坑、相對濕度8〇^、 經1 24 /j、時後的透濕度較佳A 150。g/m2.day〜35〇〇 g/m day,更佳為 1500 g/m2.day〜3〇〇〇 g/m2 如 2000 g/m2.day〜2500 g/m2.day。 〜若透濕度及含水率過高,則存在偏光片的濕熱财久性 欠佳的傾向,故容易成為高濕環境下的漏光的原因。因此, 更佳為將偏光板保護膜的透濕度及含水率控制於最佳的範 圍内。 (膜厚) 55 201139461 本發明的讀的膜厚較佳為2 μπι,更佳為2〇 pm〜g5 ,進 芒臌;i 土分μ 疋叨又住馬25 μηι〜65 μιη。 右膜厚未滿20 μιη,則機械強度不足 破裂等故障,膜面狀容易變差。 易$丨起生產時的 膜厚度的調整只要以成為所期望的厚度 成分濃度、模具的金屬叫狹二 永自模具的擠出塵力、金屬支樓體速度 (膜寬度) 本發明的膜的膜寬度較佳為1〇〇〇職以上 1500 mm以上,特佳為18〇〇 mm以上。 ”、、 (功能性層) 止^明的膜可為單層膜’亦可具有2層以上的積層構 & °此處’魏的本發_偏光板較 但即便是本發明的膜具有功能性層的形態的 膜組裝入本發明的偏光㈣,亦可叠加其他功^=。月的 作為上述功能性層,只要不違反本發明的宗旨 無特別限制,例如可列舉以下的形態的功能性層。 基材膜/硬塗層/中折射率層/低折射率層 基材膜/硬塗層/中折射率層/高折射率i/低折射率層 基材臈/硬塗層/低折射率層 基材膜/硬塗層/導電性層/低折射率層 f材膜/硬塗層/高折射率層(導電性層)/低折射率層 基材膜/硬塗層/防眩性層/低折射率層 [偏光板] 56 201139461 本發明的偏光板包含至少!片本 本發明的偏歧進行_。 以下’對 本發明的偏光板可藉由一般的方法 發型^ 面。 仏1乙_水溶液將其貼合於偏光片的兩 來提是指為了使水系接著_ _素衍生物黯潰於高溫的強驗液 、作為本發明的偏光板中所使用的偏光片,可使用先前 公知的偏光片。例如,使用藉由如蛾般的二色性染料對包 含如聚乙烯醇或乙烯單元的含量為丨莫耳%〜4莫耳。/0、聚 合度為2000〜4000、皂化度為99 〇莫耳%〜99 99莫耳% 的乙埽改性聚乙婦醇般的親水性聚合物的膜進行處理並使 其延伸而成者,或者對如氣乙烯般的塑膠膜進行處理並使 其配向而成者。 作為偏光片的膜厚,可較佳地使用5 μιη〜30 μπι的膜 厚°將以上述方式所獲得的偏光片與偏光板保護膜貼合。 此時’偏光板保護膜中的至少一片是使用本發明的 膜。於另一面,可使用其他偏光板保護膜(較佳為纖維素 衍生物膜)。 作為另一面的偏光板保護膜,可使用本發明的醯化纖 維素膜’亦可使用市售的纖維素酯膜。 較佺為於顯示裝置的表面側所使用的偏光板保護膜 57 201139461 中’除具有防眩層或透明硬塗層以外,亦具有抗反射層、 抗靜電層、防污層。 另外,當製作偏光板時,較佳為以使本發明的相位差 膜的面内慢軸與偏光片的穿透軸平行或正交的方式進行貼 合。 [液晶顯示裝置] 本發明的液晶顯示裝置包含至少1片本發明的膜或本 發明的偏光板。 關於本發明的液晶顯示裝置,可將以上述方式所獲得 的本發明的偏光板配置並貼合於液晶單元的兩面,而製作 本發明的液晶顯示裝置。 本發明的液晶顯示裝置是使用至少i片本發明的偏光 板的液晶顯示裝置。本發明的偏光板可用於各種顯示模式 的液晶單元’且可與如扭轉向列(Twisted Nematic,TN)、 共平面轉換(In-Plane Switching,IPS )、鐵電液晶 (Ferroelectric Liquid Crystal,FLC )、反鐵電液晶 (Anti-ferroelectric Liquid Crystal,AFLC)、光學補償彎曲 (Optically Compensatory Bend,OCB )、超扭轉向列 (Supper Twisted Nematic,STN)、垂直排列(Vertically Aligned ’ VA)及混合排列向列(Hybrid Aligned Nematic, HAN)的各種顯示模式的單元組合使用。 [實例] 以下,列舉實例與比較例更具體地說明本發明的特 徵。以下的實例中所示的材料、使用量、比例、處理内容、 58 201139461 處理順序等只要不麟本發明的宗旨,則可適宜變更。因 此,本發明的範圍不應由以下所示的具體例進行限定性的 解釋。 [實例1〜實例3及比較例1〜比較例7] 〇)原料的製備 (1-Ό醯化纖維素樹脂的製備 、製備下述表中所記載的乙醯基取代度的醯化纖維素。 ,力^作為觸媒的硫酸(相對於纖維素100質量份為7.8質 量份),並添加各羧酸,然後於4〇乞下進行醯基化反應。 其後’藉由調整硫酸觸媒量、水分量及熟成時間來調^總 取代度與6位取代度。於贼的熟成溫度下進行。進而二 利用丙酮清洗並去除該醯化纖維素的低分子量成分。 (U)酯取代度不同的多種糖酯化合物的製備 藉由以下的方法製備下述表中所記載的 的多種糖酯化合物。 +问 首先’藉由WO2009/03164[0054]例示化合物3的合 中所記載的方法合成上述表〗巾所記_化合物⑴ 合物117。 另外,以相同的方法合成其他化合物。其後, 合來調整糖酯化合物。 叮成 (2)摻雜物的製備 將下述組投人混合射,進賴拌來溶 分,進而歷時約10分鐘加熱至9〇〇c後,利用平均孔 34叩的遽紙及平均孔縣1〇卿的燒結金屬過遽器= 59 201139461 過滤。Rth= C(nx + ny) /2-nz) xd Formula (B) is required, and its "Abbe fold, at this time, the average refractive index n is used as a parameter by using the Abbe refractometer (AtagG (share The value measured by the company's luminometer 2-T"). (Moisture content) The balance of the invention is low, and the balance under (4) minus 8G% is low. When the ship crystal display panel is large, the change with respect to the environmental humidity is made into a buffer body, and the polarized light can be made. It is preferable to homogenize the central portion of the humidification and the end portion. (Moisture Permeability) From the viewpoint of durability of the polarizing plate and drying during processing of the polarizing plate, the film of the present invention is converted into a pit having a film thickness of 4 G μm, a relative humidity of 8 〇 ^, a volume of 1 24 /j, and a time after The moisture permeability is preferably A 150. g/m2.day~35〇〇 g/m day, more preferably 1500 g/m2.day~3〇〇〇 g/m2 such as 2000 g/m2.day~2500 g/m2.day. When the moisture permeability and water content are too high, the polarizer has a tendency to be poor in wet heat and long life, and thus it is likely to cause light leakage in a high-humidity environment. Therefore, it is more preferable to control the moisture permeability and the water content of the polarizing plate protective film in an optimum range. (Thickness) 55 201139461 The read film thickness of the present invention is preferably 2 μm, more preferably 2 〇 pm to g5, and is 进 臌; i, the soil is μ 疋叨 and the horse is 25 μηι to 65 μιη. When the right film thickness is less than 20 μm, the mechanical strength is insufficient and the film is broken, and the film surface is likely to be deteriorated. The film thickness of the present invention is adjusted as long as it is a desired thickness component concentration, the metal of the mold is called the narrow dust, the extrusion dust force of the mold, and the metal branch body speed (film width). The film width is preferably 1 〇〇〇 or more and 1500 mm or more, and particularly preferably 18 〇〇 mm or more. ", (functional layer) The film of the film may be a single layer film' or may have a layer structure of 2 or more layers. Here, the hair of the present invention is higher than that of the film of the present invention. The film group of the form of the functional layer is incorporated in the polarizing film (4) of the present invention, and other functions may be superimposed. The functional layer as the functional layer is not particularly limited as long as it does not violate the gist of the present invention, and for example, the following functions can be cited. Substrate film / hard coat / medium refractive index layer / low refractive index layer base film / hard coat / medium refractive index layer / high refractive index i / low refractive index layer substrate / hard coat / Low refractive index layer base film / hard coat layer / conductive layer / low refractive index layer f material film / hard coat layer / high refractive index layer (conductive layer) / low refractive index layer base film / hard coat / Anti-glare layer/low-refractive-index layer [polarizing plate] 56 201139461 The polarizing plate of the present invention contains at least a sheet of the present invention. The polarizing plate of the present invention can be obtained by a general method. 1 B_Aqueous solution is attached to the polarizer, which means that the water system is smashed at a high temperature. Liquid, as the polarizer used in the polarizing plate of the present invention, a previously known polarizer can be used. For example, a content such as a polyvinyl alcohol or an ethylene unit is used as a molybdenum-based dichroic dye pair. Ear %~4 mol. /0, degree of polymerization 2000~4000, saponification degree 99 〇mol %~99 99 mol% of acetaminophen-modified polyethylene glycol-like hydrophilic polymer film And extending it, or processing and aligning the plastic film like vinyl. As the film thickness of the polarizer, it is preferable to use a film thickness of 5 μm to 30 μm. The polarizer obtained in the above manner is bonded to the polarizing plate protective film. At this time, at least one of the polarizing plate protective films uses the film of the present invention. On the other hand, other polarizing plate protective film (preferably cellulose) can be used. Derivative film) As the polarizing plate protective film of the other surface, a cellulose acetate film of the present invention can be used. A commercially available cellulose ester film can also be used. The polarizing plate used for the surface side of the display device is used. Protective film 57 201139461 The anti-glare layer or the transparent hard coat layer also has an anti-reflection layer, an antistatic layer, and an anti-staining layer. Further, when the polarizing plate is formed, it is preferable to make the in-plane slow axis and the polarized light of the retardation film of the present invention. The liquid crystal display device of the present invention comprises at least one film of the present invention or a polarizing plate of the present invention. The liquid crystal display device of the present invention can be bonded. The liquid crystal display device of the present invention is produced by arranging and bonding the polarizing plate of the present invention obtained in the above manner to both surfaces of the liquid crystal cell. The liquid crystal display device of the present invention is a liquid crystal display using at least i of the polarizing plate of the present invention. The polarizing plate of the present invention can be used for liquid crystal cells of various display modes, and can be combined with, for example, Twisted Nematic (TN), In-Plane Switching (IPS), and Ferroelectric Liquid Crystal (Ferroelectric Liquid Crystal, FLC), Anti-ferroelectric Liquid Crystal (AFLC), Optically Compensatory Bend (OCB), Super-twisted nematic (Supper Twisted) Nematic, STN), Vertically Aligned (VA), and Hybrid Aligned Nematic (HAN) units of various display modes are used in combination. [Examples] Hereinafter, the features of the present invention will be more specifically described by way of examples and comparative examples. The materials, the amounts used, the ratios, the contents of the treatments, the processing order of 58 201139461, and the like, which are shown in the following examples, may be appropriately changed as long as they are not in accordance with the gist of the present invention. Therefore, the scope of the present invention should not be construed as being limited by the specific examples shown below. [Examples 1 to 3 and Comparative Examples 1 to 7] Preparation of Raw Materials (Preparation of 1-Deuterated Cellulose Resin and Preparation of Deuterated Cellulose of Degree of Substituted Ethyl Substrate as Illustrated in the Table below Sulfuric acid as a catalyst (7.8 parts by mass relative to 100 parts by mass of cellulose), and each carboxylic acid is added, followed by thiolation at 4 Torr. Thereafter, by adjusting the sulfuric acid catalyst The amount of water, the amount of water and the time of ripening to adjust the total degree of substitution and the degree of substitution of 6 are carried out at the ripening temperature of the thief. Further, the low molecular weight component of the deuterated cellulose is washed and removed by acetone. Preparation of a plurality of different sugar ester compounds A plurality of sugar ester compounds described in the following Tables were prepared by the following method: 1. First, 'synthesized by the method described in WO2009/03164 [0054] exemplified by the compound 3 Further, the compound (1) was synthesized in the same manner as in the above-mentioned table. Further, other compounds were synthesized in the same manner. Thereafter, the sugar ester compound was adjusted in combination. Preparation of the dopant (2) The following group was mixed. Shoot, feed and dissolve to dissolve, and then last about 10 After heating to 9〇〇c clock, using the average knock holes 34 of sintered metal and paper suddenly 1〇 average pore County State = 59201139461 is suddenly through filtration.
100.0質量份 8.0質量份 365.8質量份 92.6質量份 4.6質量份 實例1的醯化織維素溶液 下述表中所記載的醯化纖維素 ' 下述表中所記載的酯取代度不同的多種糖酯化合物 —氣甲炫》 甲醇 丁醇 再者,下述表中,AC表示乙醯基,pr表示丙釀基。 < 1-2>消光劑分散液 4 ° 繼而,將包含由上述方法所製成的醯化纖維素溶液 下述組成物投入分散機中,製備消光劑分散液。100.0 parts by mass, 8.0 parts by mass, 365.8 parts by mass, 92.6 parts by mass, 4.6 parts by mass of the solution of the deuterated oryzanol solution of the first example, the deuterated cellulose described in the following table, and various sugars having different degrees of ester substitution as described in the following table Ester compound - gas methylcholine" Methanol butanol Further, in the following table, AC represents an ethyl group and pr represents a propyl group. <1-2> Matting agent dispersion 4 ° Next, the deuterated cellulose solution prepared by the above method was placed in a dispersing machine to prepare a matting agent dispersion.
0.2質量份 65.7質量份 16.6質量份 0.8質量份 10.3質量份 實例1的消光剞分耑液 消光劑(AerosnR972) 二氯甲烷 甲醇 丁醇 as化纖維素溶液 將100質量份的上述實例!的醯化纖維素溶液、、 無機微粒子相對於醯化纖維素樹脂達到002質 乂及 的實例1的消光劑分散液加以混合,製備製膜騎=量 另外,實例及比較例中所使用的薦糖苯曱酸s旨均为田 進行作為反應溶劑的曱苯的減壓乾#f =使用 且未滿刚ppm者。 乾媒⑴咖取以下), 如下述表所示般變更醯化纖維素 化劑的種類,除此以外,以與實例1、的-土取代度、塑 製備其他各實例及比較例轉雜物。。轉相同的方式 201139461 (3) 洗鑄 對上述摻轉進行淹鑄 。再者,滾筒 使用滾筒製膜機 是SUS製。 (4) 乾燥 於下述表中所記裁的溫度下, =置將經洗鑄而獲得的網(膜)乾燥2。分鐘另J, =為二他形S,自輯_後’使㈣纽祕 來進行搬送的拉幅裝置,將經堯冑 / / 同J Ϊ 述兩種形態所得的結果相 同。再者,此處的乾燥溫度是指膜的膜面溫度。 (5)延伸 將所獲得的網(膜)自滾筒上剝離,然後將其夾在夹 具中’當相對於難_質量的殘留溶為腦〜5%的 ^態時」於ϋ定端單軸延伸的條件下,使錄誠以下述 中所δ己載的延伸溫度及延伸倍率使網(膜)在與膜搬送 方向正交的方向(橫方向)上延伸。 /、、 其後,自膜上卸除夾具,於110°c下乾燥30分鐘。此 時,以使延伸後的膜厚達到4〇 pm的方式調整澆鑄膜厚。 (6)捲取 製作下述表中所示的組成的膜,為了判斷其製造適應 性’於上述條件下製作最少24根輥寬為1280 mm、輥長 為2600 mm的輥。針對連續地製造的24根輥中的1根輥, 以100瓜間隔切出長度為lm的樣品(寬度為1280 mm) 並進行各測定。 201139461 (偏光板的製作) 使碘吸附於經延伸的聚乙烯醇膜上來製作偏光片。使 用聚乙烯醇系接著劑,將所製作的各實例及比較例的膜貼 附於偏光片的一侧·》再者,皂化處理是以如下的條件進行。 製備1.5 mol/L的氫氧化鈉水溶液,並保溫至”。匚。 製備0.005 moI/L的稀硫酸水溶液,並保溫至35〇c。將各 實例及比較例t所製作的膜於上述氫氧化鈉水溶液中浸潰 2分鐘後,浸潰於水中來充分地沖走氫氧化鈉水溶液。繼 而,於上述稀硫酸水溶液中浸潰丨分鐘後,浸潰於水中來 充分地沖走稀硫酸水溶液。最後將試樣於丨加它下充分地 乾燥。 對市售的三乙酸纖維素膜(FUJITAC TD80UF,富士 軟片(股份)製造)進行皂化處理,並使用聚乙烯醇系接 著劑將其貼附於偏光片的相反側,然後於7〇°c下乾燥1〇 分鐘以上。 以使偏光片的穿透軸與各實例及比較例的膜的慢軸平 行的方式進行配置。以使偏光片的穿透轴與市售的膜的慢 轴正交的方式進行配置。 <測定法> (蔗糖苯曱酸酯的平均取代度的測定法) 將保持時間處於31.5 min附近的波峰設定為八取代 物,將保持時間處於27 min〜29 min附近的波峰群設定為 七取代物,將保持時間處於22 min〜25 min附近的波峰群 設定為六取代物’將保持時間處於15 min〜20 min附近的 62 201139461 波峰群設定為五取代物,將保持時間處於8.5 min〜13 mil1 附近的波峰群設定為四取代物,將保持時間處於3 min〜6 min附近的波峰群設定為三取代物,藉由以下的HPLC條 件下的測定而算出相對於將各取代物的面積比加以合計而 成的值的平均取代度。 《HPLC測定條件》 管柱:TSK-gel ODS-100Z (東曹),4.6* 150 mm,批 號(P0014) 溶析液A : H20=100,溶析液B : AR=100。於A、 B中均加入各0.1%的AcOH、NEt3 流量:1 ml/min,管柱溫度:4(TC,波長:254 nm, 感光度:AUX2,注入量:1〇 μ卜淋洗液:THF/H20 = 9A (vol 比) 樣品濃度:5mg/10ml (THF) (濁度) 濁度的測定是於25°C、相對濕度60%下,使用濁度計 (HGM-2DP,Suga Test Instrument)並根據 JIS Κ·6714 對 40 mm><80 mm的膜試樣進行測定。將其結果示於下述表 中。 (光學性能) 對光學性能綜合性地進行評價。將其結果記載於下述 表中。 (光學顯現性) 使用 KOBRA 21ADH (王子計測機器(〇ji Scientific 63 2011394610.2 parts by mass 65.7 parts by mass 16.6 parts by mass 0.8 parts by mass 10.3 parts by mass Example 1 matting bismuth mash liquid Matting agent (AerosnR972) dichloromethane methanol butyl alcohol as cellulose solution 100 parts by mass of the above examples! The deuterated cellulose solution and the inorganic fine particles are mixed with the defoaming agent dispersion of Example 1 and the deuterated cellulose resin to obtain a film-forming ride amount. In addition, the examples used in the examples and comparative examples are used. The benzoic acid s is intended to be used as a reaction solvent for dehydration of toluene as a reaction solvent. #f = used and less than just ppm. The dry medium (1) was taken as follows: The type of the cellulose-based cellulose-forming agent was changed as shown in the following table, and the other examples and comparative examples were replaced with the soil-substituted degree of Example 1, plastic preparation, and the comparative example. . . Turn the same way 201139461 (3) Washing and casting The above blending is carried out by flood casting. Further, the drum using the drum film forming machine is made of SUS. (4) Drying At a temperature as noted in the following table, the net (film) obtained by washing was dried. In the minute, another J, = is a two-shaped S, and the tenter device that carries the _ after the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Further, the drying temperature herein means the film surface temperature of the film. (5) Extension The strip (film) obtained is peeled off from the drum, and then clamped in the jig 'When the residue relative to the difficult mass is dissolved to the brain ~ 5% state" at the end of the uniaxial axis Under the extended conditions, the net (film) was stretched in a direction (lateral direction) orthogonal to the film transport direction by the extension temperature and the stretching ratio of δ carried in the following. /, and thereafter, the jig was removed from the film and dried at 110 ° C for 30 minutes. At this time, the cast film thickness was adjusted so that the film thickness after the extension reached 4 pm. (6) Winding A film having the composition shown in the following table was produced, and in order to judge the manufacturing suitability, a minimum of 24 rolls having a roll width of 1280 mm and a roll length of 2600 mm were produced under the above conditions. For each of the 24 rolls continuously manufactured, a sample having a length of lm (width: 1280 mm) was cut at intervals of 100 melons and each measurement was performed. 201139461 (Production of polarizing plate) A polarizer is produced by adsorbing iodine on an extended polyvinyl alcohol film. The film of each of the produced examples and the comparative examples was attached to one side of the polarizer using a polyvinyl alcohol-based adhesive. Further, the saponification treatment was carried out under the following conditions. A 1.5 mol/L sodium hydroxide aqueous solution was prepared and kept at a temperature of 匚. A 0.005 mol/L aqueous solution of dilute sulfuric acid was prepared and kept at 35 〇c. The films prepared in each of the examples and comparative examples were subjected to the above-mentioned hydration. After immersing in the sodium aqueous solution for 2 minutes, the aqueous sodium hydroxide solution was sufficiently washed away by immersing in water, and then immersed in the above-mentioned dilute sulfuric acid aqueous solution for a minute, and then immersed in water to sufficiently wash away the dilute sulfuric acid aqueous solution. Finally, the sample was sufficiently dried under a helium addition. A commercially available cellulose triacetate film (FUJITAC TD80UF, manufactured by Fujifilm Co., Ltd.) was saponified and attached to it using a polyvinyl alcohol-based adhesive. The opposite side of the polarizer was then dried at 7 ° C for more than 1 minute. The alignment axis of the polarizer was arranged in parallel with the slow axis of the films of the respective examples and the comparative examples to allow the polarizer to be worn. The transmission axis is disposed so as to be orthogonal to the slow axis of the commercially available film. <Measurement method> (Measurement method of average degree of substitution of sucrose benzoate) The peak having a retention time of around 31.5 min is set to eight substitution Object, will protect The peak group with time between 27 min and 29 min is set as a seven-substrate, and the peak group with a hold time of 22 min to 25 min is set as a six-substitute'. The hold time is around 15 min~20 min. 62 201139461 Crest The group was set as a penta-substrate, and the peak group near the retention time of 8.5 min to 13 mil1 was set as a tetra-substrate, and the peak group having a retention time of 3 min to 6 min was set as a tri-substrate by the following HPLC. Under the conditions, the average degree of substitution with respect to the total value of the area ratio of each of the substituents was calculated. "HPLC measurement conditions" Column: TSK-gel ODS-100Z (Tosoh), 4.6* 150 mm, Batch No. (P0014) Eluent A: H20=100, Eluent B: AR=100. Add 0.1% AcOH and NEt3 in both A and B. Flow rate: 1 ml/min, column temperature: 4 (TC) , Wavelength: 254 nm, Sensitivity: AUX2, Injection amount: 1 〇μ Bu Eluent: THF/H20 = 9A (vol ratio) Sample concentration: 5 mg/10 ml (THF) (turbidity) The turbidity is determined by At 25 ° C, 60% relative humidity, use a haze meter (HGM-2DP, Suga Test Instrument) and according to J IS Κ·6714 A film sample of 40 mm >< 80 mm was measured. The results are shown in the following table. (Optical properties) The optical properties were comprehensively evaluated. The results are shown in the following table. (Optical display) Using KOBRA 21ADH (Prince Measurement Machine (〇ji Scientific 63 201139461
Instruments)(股份)製造),並藉由上述方法於波長590 nm 下測定Re及IUh。將其結果記載於下述表中。 (Tg) 玻璃轉移溫度的測定是藉由以下的方法進行測定。於 25°C、相對濕度60%下將24 mm><36 mm的醯化纖維素膜 試樣調濕2小時以上後’利用動態黏彈性測定裝置 (Vibron : DVA-225 (IT Keisoku Seigyo 股份有限公司製 造)),於夾具間距離20 mm、升溫速度2〇c/分、測定溫度 範圍30°C〜20(TC、頻率1 Hz下進行測定。於縱軸上以對 數軸表不儲存彈性模數,於橫軸上以線性軸表示溫度,針 對儲存彈性模數自固體區域朝玻璃轉移區域移行時所觀察 到的儲存彈性模數的急遽的減少,藉由JIS K71211987的 圖3中所記载的方法來求出玻璃轉移溫度丁呂。 (含水率) 3水率的測定法是利用水分測定器、試樣乾燥裝 〇3、VA-〇5 ’均為三菱化學(股份以卡爾費雪 广mmx35 mm的醯化纖維素膜試樣進行測^。將水分 除以試樣重量(g)而算出含水率。 (滲出) 9〇%,及溫度‘晶/〗鑄、乾燥後於溫度6吖、濕 是否熱條件下經過1〇〇〇h (密接評價方^仃賴。將其絲贼於表5 進仃依照IISK56GG的方格試驗。具體而言,進朽 64 201139461 質塗佈’於紫外線(Ultraviolet,UV )硬化後的樣品表面 上以1 mm間隔縱橫地形成u條切痕,而製成1〇〇個1 mm 見方的方格。於其上貼附玻璃紙膠帶(cellophane tape)及 瑪拉膠帶(mylar tape),然後快速地剝下,並藉由目視觀 察對剝離部位進行密接評價。 將於形成切痕前照射24 h的Xe的結果設定為耐光密 接,將未照射Xe者設定為初始密接。 密接性〇 :剝離部位為 0 mass〜10 mass。 松、接性△.剝離部位為11 mass〜50 mass ° 搶接性x ·剝離部位超過50 mass、99 mass以下。 密接性xx :剝離部位為100 mass (貼有膠帶的所有部 分) 於照射Xe時,使用suga Test Instruments股份有限公 司製 的 Super Xenon Weather Meter SX75。 (鉛筆硬度評價法) 進行硬質塗佈’於25°C、相對濕度6G%的條件下將 UV硬化後的樣品調濕2小時後,將使用ns s _6所規 定的試驗用船筆’根據JISK 5權所規定的錯筆硬度評價 法’並利用 g的法碼以各硬度的料重複進行5次劃 痕而成的樣品裝人10CTC的七h中5分鐘,取出後進行 評價’將4次以上無損傷的硬度設定為該樣品的硬度。再 者,JIS K 5400中所定義的損傷是塗膜的破裂、塗膜的擦 傷,雖然記载為不將塗膜的凹陷作為對象但此處亦將塗 膜的凹陷包含仙崎為損傷。數字越高,絲硬度越高。 65 201139461 (偏光板耐久性) 藉由以下的方法研究所獲得的偏光板的濕熱條件下的 耐久性。 觀察於溫度6(TC、濕度90%,及溫度80%、渴产1〇0/〇 的濕熱條件下經過1〇〇〇h時的正 = 蔗糖笨曱酸酯系的偏#柘mam <喝千〜交化,可確涊 久性。㈣偏植耐久性均優於TPP_偏光板耐 66 201139461 【ln<〕J-aIoo卜卜 εInstruments) (manufactured by the company), and the determination of Re and IUh at a wavelength of 590 nm by the above method. The results are shown in the following table. (Tg) The measurement of the glass transition temperature was carried out by the following method. After adjusting the sample of 24 mm><36 mm of deuterated cellulose film at 25 ° C and 60% relative humidity for 2 hours or more, 'Using dynamic viscoelasticity measuring device (Vibron : DVA-225 (IT Keisoku Seigyo shares) Co., Ltd.)), the distance between the clamps is 20 mm, the heating rate is 2〇c/min, and the measurement temperature range is 30°C~20 (TC, frequency 1 Hz. The vertical axis does not store the elasticity on the logarithmic axis. Modulus, the temperature is represented by a linear axis on the horizontal axis, and the rapid decrease in the storage elastic modulus observed when the storage elastic modulus moves from the solid region toward the glass transition region is recorded in Fig. 3 of JIS K71211987 The method of loading is used to determine the glass transition temperature of Ding Lu. (Water content) 3 The water rate is measured by using a moisture analyzer, a sample drying device, and VA-〇5' are all Mitsubishi Chemicals. A sample of deuterated cellulose film with a width of mm×35 mm was measured. The moisture content was calculated by dividing the water by the weight (g) of the sample. (Exudation) 9〇%, and the temperature was crystallized/cast, dried at a temperature of 6吖, wet or not, after 1〇〇〇h (closely evaluation) The thief is placed in Table 5 according to the grid test of the IISK56GG. Specifically, the grading of the film is formed on the surface of the sample after ultraviolet (Ultraviolet, UV) hardening at intervals of 1 mm. Cut into one square of 1 mm square. Attach cellophane tape and mylar tape to it, then peel off quickly and peel off by visual inspection. The adhesion evaluation was performed on the part. The result of Xe irradiation for 24 h before the formation of the incision was set to be light-tight, and the non-irradiation of Xe was set as the initial adhesion. Adhesion 〇: The peeled portion was 0 mass to 10 mass. △. The peeling site is 11 mass to 50 mass °. The splicing property x · The peeling site is more than 50 mass and 99 mass or less. Adhesiveness xx: 100 mass of the peeling part (all parts with tape attached) When irradiating Xe, use suga Super Xenon Weather Meter SX75 manufactured by Test Instruments, Inc. (Pencil hardness evaluation method) Hard coating is applied to the UV-cured sample at 25 ° C and 6 G% relative humidity for 2 hours. n The test ship stipulated by ss _6 'according to the wrong pen hardness evaluation method stipulated in JIS K 5, and the sample of g hardness is repeated five times with the code of g to load the sample of 10 CTC for seven hours. In the middle of 5 minutes, the evaluation was performed after taking out 'the hardness of 4 times or more without damage was set to the hardness of the sample. In addition, the damage defined in JIS K 5400 is the rupture of the coating film and the scratch of the coating film. Although it is described that the coating film is not targeted, the depression of the coating film is also included in the damage of the celery. The higher the number, the higher the wire hardness. 65 201139461 (Performance of polarizing plate) The durability of the polarizing plate obtained under the moist heat condition was obtained by the following method. Observed at the temperature 6 (TC, humidity 90%, and temperature 80%, thirst yield 1 〇 0 / 〇 under the damp heat condition of the positive = sucrose alumite ester bias #柘mam < Drinking thousands to cross, can be sure of long-lasting. (4) Partial planting durability is better than TPP_ polarizing plate resistant 66 201139461 [ln<]J-aIoo Bub ε
〇 0 〇 X ο X ο 安 ffi cn Ε m 安 〇 ο Ο <1 X 〇 ο 〇 ο Ο X 〇 ο 飧ή X X <1 ο <1 < ο 〇) m 00 cn Η Η σ\ η m 5 吨 £5 s Ρ ηϊ a οο Ο 0 ο ¢4 •CI ^ 〇 隨刼g s 2 Ο 3 3 «DI ^ ο 璨谱蝴崧 < 制 V-) s s Η 00 Η Η 没 ol 纪 Η i ώ 4 ^ ^ o ο ο ο ο 〇 ο $崧¥甸 H Η s Η rJ Ν S Η 牛踅溫接 < 甸g n 00 οο wS 00 so δ 00 〇〇 00 ί5議 ϋΐι S 卜 00 to 00 uS 00 vS 取代 度為 75% i-X-L 的 取代 ^ι¥] 合計 VO 忒 R 00 νη οό ^Η 00 f 取代 度為 125 %的 取代 物 o Ο Ο Ο ο ο \J/ s o Ο Ο ο ο ο 塑储j 4jp 伞 -s 撕iS蓉 'Ο ο a 1 ί爲義中 § »~Η CO νο CO Ό cn ψ i S紹ϊ蓉 Oj 卜 Ho I 取代 度為 75% 的 取代 物 jn οο CO οο m οο m Ό 寸 ?3 η F5 Ι5§ίΙ^ pj Ον ΐ"Η η ιη η »〇 η s 梁1 蔗糖笨 曱酸醋 蔗糖笨 甲酸醋 荒糖苯 甲酸鹿 TPP/BD Ρ 廉糖苯 甲醆醋 嚴糖苯 甲醆醋 雜苯 甲酸鹿 Si 怒<Ν * ^ ^ (Π 5? 忽寸 1 ^ 3 5 SI 201139461 JUI8卜卜ε Ο ° ° 安 ο 〇 〇 ο 〇 〇 ο ° < m - - § In is Ο 〇 •m ^ s 纪 Η S3 N S ο 〇 § 12 N 〇\ S 2 | ® 00 5S $ Ο 〇 〇 ο 〇 〇 Η S η 00 00 η 00 卜 § 00 ν〇 均 S § vp 2 νρ 簾糖苯 甲酸醋 嚴糖笨 甲酸酷 蔬糖苯 甲酸醋 3 ^ 201139461 根據表5可知,實例中所獲得的醯化纖維素膜的透明 性、透濕性及光學性能良好,且可改善與偏光片組合時的 南溫南濕下的偏光板耐久性。 另一方面’根據比較例1及比較例2可知,當使用取 代度不同的糖醋化合物的混合物時,若醋取代度為乃%以 上的糖酯化合物的含有率超過本發明的範圍,酯取代度為 35%〜50%的糖酯化合物的含有率少於本發明的範圍,則 糖酯化合物滲出,透明性及光學性能變差。 實例4 即便於將表5中的實例3的糖酯化合物即蔗糖苯曱酸 醋的2 5 %替換成作為該二醣類的糖酯化合物的蔗糖八乙酸 醋時’與硬塗層的密接性能、鉛筆硬度、偏光板耐久性亦 與實例3同樣地良好。 (液晶顯示裝置的製作) 將使用本發明的膜的偏光板安裝於液晶面板中並進行 評價的結果’可確認與Tpp系膜無差異,且性能上不存在 問題。 可知所獲得的液晶顯示裝置的高溫高濕下的耐久性優 異。 【圖式簡單說明】 〇 【主要元件符號說明】 無0 69〇0 〇X ο X ο安ffi cn Ε m 安〇ο Ο <1 X 〇ο 〇ο Ο X 〇ο 飧ή XX <1 ο <1 < ο 〇) m 00 cn Η Η σ\ η m 5 ton £5 s Ρ ηϊ a οο Ο 0 ο ¢4 •CI ^ 〇随刼gs 2 Ο 3 3 «DI ^ ο 璨谱嵩 制 制 - 制 00 00 Η Η ol ol ol Η i ώ ^ ^ ^ ^ ^ 甸 甸uS 00 vS Substitution degree is 75% iXL replacement ^ι¥] Total VO 忒R 00 νη οό ^Η 00 f Substitution with a degree of substitution of 12 % o Ο Ο Ο ο ο \J/ so Ο Ο ο ο ο储j 4jp Umbrella-s tear iS Rong'Ο ο a 1 ί为义中§ »~Η CO νο CO Ό cn ψ i S Shao Rong Rong Oj Bu Ho I Substitute with 75% substitution jn οο CO οο m Οο m Ό inch?3 η F5 Ι5§ίΙ^ pj Ον ΐ"Η η ιη η »〇η s beam 1 sucrose awkward sour sucrose sucrose stupid formic acid vinegar benzoic acid deer TPP/BD Ρ cheap sugar醆 醆 醆 苯 苯 苯 苯 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ° ° ° ° ° ° ° ° ° ° ° m - - § In is Ο m•m ^ s Η Η S3 NS ο 〇§ 12 N 〇 \ S 2 | ® 00 5S $ Ο 〇〇ο 〇〇Η S η 00 00 η 00 卜 00 ν 〇 S § vp 2 νρ Curtain benzoic acid vinegar succinct sugar stupid formic acid cool vegetable sugar benzoic acid vinegar 3 ^ 201139461 According to Table 5, the fluorinated cellulose film obtained in the example has good transparency, moisture permeability and optical properties. Moreover, the durability of the polarizing plate under the south temperature and the south humidity when combined with the polarizer can be improved. On the other hand, according to Comparative Example 1 and Comparative Example 2, when a mixture of sugar and vinegar compounds having different degrees of substitution is used, if the content of the sugar ester compound having a degree of vinegar substitution of more than % is more than the range of the present invention, the ester is substituted. When the content of the sugar ester compound having a degree of 35% to 50% is less than the range of the present invention, the sugar ester compound bleeds out, and transparency and optical properties are deteriorated. Example 4 is to facilitate the adhesion of the sugar ester compound of Example 3 in Table 5, that is, sucrose phthalic acid vinegar, to sucrose octaacetate as the sugar ester compound of the disaccharide. The pencil hardness and the durability of the polarizing plate were also good as in the case of Example 3. (Production of Liquid Crystal Display Device) The result of evaluation by attaching a polarizing plate using the film of the present invention to a liquid crystal panel was confirmed to be no difference from the Tpp film, and there was no problem in performance. It is understood that the obtained liquid crystal display device has excellent durability under high temperature and high humidity. [Simple diagram description] 〇 [Main component symbol description] None 0 69
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JP2012108349A (en) * | 2010-11-18 | 2012-06-07 | Konica Minolta Opto Inc | Retardation film, production method of the same, polarizing plate, and liquid crystal display device |
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JP5837470B2 (en) * | 2012-09-28 | 2015-12-24 | 富士フイルム株式会社 | Cellulose acylate film, polarizing plate and liquid crystal display device |
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