201120281 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種兼備高的白色度與高的不透明度之 印刷用紙。 【先前技術】 近年，印刷用紙，尤其印刷用塗佈紙係可使用於通訊 販賣等之目錄印刷物等，故尋求一種視覺上可得到強力的 印象之白度的傾向乃很明顯。於塗佈紙係有上質塗佈紙（ A1 coat、A2 coat、A3 coat、微塗佈紙）、中質塗佈紙、 超輕量塗佈紙等之品種，用途別、希望別上基重、白色度 、光澤度、平滑性、色調等相異之商品名由各公司製品化 〇 使用上質系之原料的印刷用紙係主要可使用以漂白牛 皮紙漿作爲原料之紙漿，故著色異物亦少，白色度高，但 不透明度低。另外，使用中質系之原料的印刷用紙係除了 漂白牛皮紙漿外，尙可調配許多再生紙漿或機械紙漿。因 此，使用中質系之原料的印刷用紙係不透明度較上質系印 刷用紙更高，但有白色度低於上質系印刷用紙之問題。如 此地，在印刷用紙中係有欲一起提高白色度與不透明性之 要求。 一般，高基重之印刷用紙係有時同時具有比較高的白 色度與不透明性，但尋求視覺上可得到更強烈印象之程度 的白色。又，以同基重進行比較’期望不透明度更高的印 -5- 201120281 刷用紙。因而，即使在高基重之印刷用紙中，有欲更提昇 白色度、不透明性之要求。另外，爲依照使冊子之頁數增 加、用紙之成本刪減與輸送及郵送之成本刪減倂存之要求 ，故於低基重之印刷用紙的需要昇高。在低基重之印刷用 紙中係很難使高的白色度與不透明性倂存，尤其，以薄物 印刷時之微透光會成爲問題。 用以達成白色度與不透明度之倂存的方法，已揭示一 種內外添加折射率高的氧化鈦，於塗佈層調配中空塑膠顏 料等而於塗佈層設有適度的上漿之空隙，又，組合此等之 方法（專利文獻1、專利文獻2 )。但，於此等方法所使用 的原料任一者均昂貴，有成本變高之問題。 〔先前技術文獻〕 〔專利文獻〕 〔專利文獻1〕特開2000-3 3 65 93號公報 〔專利文獻2〕特公昭52-1 181 16號公報 【發明內容】 〔發明之槪要〕 〔發明欲解決之課題〕 有鑑以上，本發明之課題在於提供一種具有高白色、 高不透明性之印刷用紙。 〔用以解決課題之方法〕 本發明人等爲解決上述課題，經專心硏究之結果，發 -6- 201120281 現構成印刷用紙之成分中，藉含有具紫色、藍色之色材任 何1種類以上，俾可得到白色度高，高不透明度之印刷用 紙，終完成本發明。 亦即，本發明係包含以下之發明。 (1 ) 一種印刷用紙，係含有由紫色顏料、紫色染料、藍 色顏料、及藍色染料所成之群選出的1種以上之色材，且 不透明度爲85%以上，其係依據Jis P 8 150的方法所測定之 紙的色相中之a*値及b*値爲 a *値：0以上，未達7，b *値：-1 5以上，未達-3 (但 依含有紫外線之測定而定）。 (2 )如（1 )項之印刷用紙，其中基重爲70g/m2以下。 (3 )如（2 )項之印刷用紙，其中前述色材存在於構成前 述印刷用紙之層的任一層。 (4 )如（2 )之印刷用紙，其中具有2以上之層，且基重 爲7 Og/m2以下之印刷用紙，前述色材存在於複數之層。 (5 )如（1 )項之印刷用紙，其中基重高於70g/m2。 (6 )如（1 )項之印刷用紙，其中色材爲紫色顏料或藍色 顏料。 〔發明之效果〕 若依本發明，可得到具有高白色、高不透明性之兩者 的物性之印刷用紙。尤其，本發明之印刷用紙係外觀之白 色很強，白色較以機器測定之白色度顯目而可看到。尤其 ，本發明之印刷用紙係在低基重品中發揮優異之高不透明 201120281 性。進一步，本發明之印刷用紙係印刷面感、印刷光澤亦 優，平滑度高，油墨之著肉性亦優，印刷適性優異。尙且 ，若依本發明，於原料常使用不透明度低之化學紙漿時， 可充分維持印刷用紙之不透明度。尤其，若使前述色材分 割成2以上之層而存在，可抑制印刷用紙之色不均。 〔用以實施發明之形態〕 本發明之印刷用紙係可爲設有以顏料與黏著劑作爲主 成分之塗佈層之印刷用塗佈紙，亦可爲不設有前述塗佈層 之印刷用紙。本發明之效果係在印刷用塗佈紙更可充分發 揮。印刷用塗佈紙係基紙（以下，在本發明中，有時稱爲 「原紙」）、與於該基紙上之單面或雙面至少具有一層的 塗佈層’該塗佈層係以顏料及接著劑作爲主成分之紙。在 本發明中具有含白色顏料之顏料塗佈層的印刷用紙稱爲印 刷用塗佈紙或僅稱塗佈紙，不具有前述顏料塗佈層之印刷 用紙稱爲印刷用非塗佈紙或僅稱非塗佈紙。 1.色材 在本發明中，所謂色材係謂白色以外之有色的顏料或 染料。在本發明中，於印刷用紙含有由紫色顏料、紫色染 料、藍色顏料、及藍色染料所成之群選出的1種以上之色 材。所謂顏料係於水或油或有機溶劑等以不溶或難溶性或 分散狀態存在之白色或有色的粉體，有無機顏料與有機顔 料。在本發明中係前述色材亦可使用無機顏料、有機顔料 -8 - 201120281 之任一者。所謂染料係使可見光線選擇吸收或反射而具有 固有之色的有機色素中，藉適當的染色法染色於纖維或顔 料等的有機色素。染料係可溶於溶劑（水或有機溶劑等） 。在本發明中，可倂用染料，但從耐光性優異，防止紙隨 時間產生之變色•著色的觀點，宜使用紫色顏料及/或藍 色顏料。在本發明中’ 「使用紫色顏料及/或藍色顏料」 謂使用藍色顏料與紫色顏料之兩者時，或使用藍色顏料與 紫色顏料之任一者的情形。又，在本發明中，有時「藍色 顏料及/或紫色顏料」表記爲「藍色•紫色顏料」，， 所市售之藍色顏料係可舉例如EMT-藍DS-1 8東洋油墨 製造（股）公司製等，所市售之紫色顔料可舉例如SA紫色 C12896御國色素（股）公司製等。可單獨使用藍色顔料 、或單獨使用紫色顏料，但亦可併用兩者。爲提昇不透明 度，宜使用紫色顏料。又，在本發明中依需要亦可添加黑 、紅、黃等之藍、紫以外的色材。 藍色顏料、紫色顏料如前述般，亦可使用無機顏料及 有機顏料的任一者。藍色顏料的具體例可舉例如群青、淡 藍色、普魯士藍（紺青）、群青、花紺青、鈷藍（鋁酸鈷 )'天空藍（cerulean blue)(錫酸姑）、鈷鉻藍、姑· 鋁•矽酸氧化物、鈷•鋅•矽氧化物、錳藍、鈦菁。又， 紫色顏料之具體例可舉例如鈷紫（砒酸鈷' 磷酸鈷 '鈷· 鋰•磷氧化物、含水磷酸銨鈷、硼酸鈷等）、紫群青、氧 化鈦紫、錳紫、礦物紫之無機顏料、靛系、喹吖酮系、噁 嗉系、蒽醌系、碳鑰系、氧雜蒽系之有機顏料。 -9- 201120281 在本發明中，藉由於印刷用紙含有藍色•紫色之顏料 一定量而色相爲後述色相之範圍’俾使印刷用紙之表面色 呈藍白，增強外觀的白色’同時提昇不透明度，可防止印 刷時之微透光。 在本發明中之藍色顏料及紫色顏料係於印刷用紙含有 時使印刷用紙形成各別之色的色材。若添加各別之色材， 可朝圖1所示之方向改變紙的色相。圖1係以L*a*b*表色系 爲依據，表示不含有本發明之色材的紙、與含有之後的紙 之色相的變化。表記色相而以a*値之（+)方向爲0 ° ， (-)方向爲180° b*値（+)方向爲90° 、（-)方向爲 270°時，若使添加前之紙爲原點零的位置，若添加藍色 之色材，於「帶藍色」與圖1所示之210°以上未達280°之 部分添加後的紙之色相會變化，若添加紫色之色材，於「 帶紫色」與圖1所示之280°以上未達3 3 5 °之部分添加後的 紙之色相會變化。 色材之含量 在本發明所使用之色材的含量無特別限定，但就色材 合計’印刷用紙每1 m2，宜爲0.7mg以上3 · 5 mg以下，更宜 爲0.9mg以上3.0mg以下。 如前述般，在本發明中，宜使用紫色顏料及/或藍色 顏料作爲前述色材，宜此等之顏料的合計含量亦如前述般 。一般若紫色顏料及藍色顔料之合計的含量少於0.7mg， 以前述顏料所產生之光的吸收少，故助於不透明度之隱蔽 -10- 201120281 性不足’不佳。又，一般，前述合計量多於3.5 m g，以 述顏料所產生的光之吸收量多，非常助於不透明度提昇 但色相遠離〇點，未感覺到白色，故不佳。前述顔料之 量在上述範圍內，可藉原料或原紙等之白色度適當調整 前述色材之合計量係印刷用紙含有原紙層、二漿沖 層及顔料塗佈層時，合計各層之各含量的値，依下式所 出。在下式中，表示使用藍色顏料及紫色顏料作爲色材 情形。 〔式1〕 合計量（mg/m2 ) ={原紙基重（g/m2 ) X原紙中之紙漿含有率x原紙 之藍色顏料與紫色顔料的含量（mg/紙漿lg) } +〔上漿沖壓液的塗佈量（雙面）（g/m2 ) x {上獎 壓液中之藍色顏料與紫色顏料之合計重量份/上發沖壓 中之全固形分重量份} +顏料塗佈液的塗佈量（雙面）（g/m2) ><{顔料 佈液中之藍色顏料與紫色顏料之合計重量份/顏料塗佈 中之全固形分重量份} 〕χ1000 含有色材之層 在本發明中色材係亦可含有於印刷用紙之任—者的 。在本發明中’例如，可於構成印刷用紙之層的任〜層 在色材。此時’有可比較簡單地製造印刷用紙的優點。 刖 ， 含 > 壓 求 之 中 沖 液 塗 液 層 存 尤 -11 - 201120281 宜於塗佈層含有藍色•紫色顏料。於原紙之雙面存在同— 之層（例如設於雙面之塗佈層）時，於1層存在藍色.紫 色顏料’謂前述雙面之塗佈層含有藍色•紫色顏料時，或 ’雙面之塗佈層之中，1之塗佈層含有藍色•紫色顏料。 在本發明中’如前述般，宜使用藍色.紫色顏料作爲色材 ，故以下’只要無特別聲明，說明有關使用藍色•紫色顏 料作爲色材之情形。 藍色·紫色顏料係可於原紙中含有，亦可於上漿沖壓 液中含有’若爲設有塗佈層之印刷用紙，亦可於塗佈層含 有。又，原紙層及/或塗佈層爲2層以上時，可於任一層含 有，可於全部之層含有。從易製造之觀點，藍色•紫色顏 料係宜於塗佈層含有。 一般印刷用紙係分類成具有含一般的顏料之顏料塗佈 層的塗佈紙、與不含有顏料塗佈層的非塗佈紙。一般之顏 料如後述般，爲髙嶺土、泥土等。使含有此顏料之塗佈層 在本發明中僅稱爲「顏料塗佈層」。塗佈紙及非塗佈紙依 需要而澱粉或聚丙烯醯胺、聚乙烯醇等之水溶性高分子黏 結劑的水溶液（上漿沖壓液）塗佈於原紙上而設有透明的 塗佈層。因此，本發明之印刷用紙係於原紙之單面或雙面 設有透明塗佈層與顏料塗佈層之任一者或兩者之層。 因此，本發明之印刷用紙係含有以下之態樣。 1 ) 具有原紙層與顔料塗佈層之塗佈紙 在此塗佈紙中藍色•紫色顏料係存在於原紙層與顏料 塗佈層之兩者或一者。 -12- 201120281 2 ) 具有原紙層與透明塗佈層與顏料塗佈層之塗彳 在此塗佈紙中藍色•紫色顏料係存在於由原 明塗佈層、顏料塗佈層選出之一層或複數之層。 3 ) 具有原紙層之非塗佈紙 在此非塗佈紙中藍色•紫色顏料係存在於原| 4) 具有原紙層與透明塗佈層非塗佈紙 在此非塗佈紙中藍色•紫色顏料係存在於原 明塗佈層之兩者或一者。 其中’若使藍色•紫色顏料存在於複數之層 刷用紙之外觀的白色度或不透明度安定而提昇， 刷用紙之色不均。在本發明中，所謂使藍色.紫 在於複數之層，意指存在於使藍色.紫色顏料相 之層（例如原紙層與塗佈層）。於原紙之雙面存 層（例如設於雙面之塗佈層），此2個塗佈層含 紫色顏料時，不相當於2層存在藍色•紫色顏料。 之層存在藍色•紫色顏料之態樣，在尤其微透光 易產生的低基重之印刷用紙，亦即基重爲70g/m2 刷用紙中易發揮效果。 本發明之藍色•紫色顏料存在於複數之層時 各層之藍色·紫色顏料的比率無特別限定，但藉 在於最外層之塗佈層的顔料之比率而以少量的顏 率地享受本發明之效果。例如，宜使存在於更外 藍色·紫色顏料之量，多於存在於更內側之層的 色顔料之量。 ί布紙 紙層、透 氏層。 紙層與透 ，可使印 可抑制印 色顏料存 異之複數 在同一之 有辟色 · ij ,mx L」 於2以上 等之問題 以下之印 ，存在於 由提高存 料可有效 側之層的 藍色•紫 -13- 201120281 2.印刷用紙之製造 本發明之印刷用紙係藉公知之方法製造。例如，本發 明之印刷用塗佈紙係以鋼線部分抄紙以下記載之抄紙原料 ，然後，可供給於沖壓部分、預乾燥機部分而製造基紙， 繼而，以塗佈機部分使後述之塗佈液塗佈於基紙上之後， 可供給於後乾燥機部分、輾壓部分、捲線部分、絡紗機部 分等而製造。又，印刷用非塗佈紙時，以鋼絲部分進行抄 紙抄紙原料，然後，可供給於沖壓部分、預乾燥機部分而 製造原紙，於其原紙上使水溶性高分子（黏結劑）進行透 明塗佈而製造。 原紙 本發明之印刷用紙係至少具有原紙層。使用於本發明 之原紙係可爲單層抄紙，亦可爲多層抄紙。本發明之原紙 具有多層構造時，亦可於構成原紙之複數的層之任一層以 上含有藍色•紫色顏料。使藍色•紫色顏料存在於原紙層 ’故從含有該顏料之抄紙原料抄紙原紙即可。本發明之原 紙的製造無特別限制，而使用公知之原料而以公知的方法 製造原紙。 原料紙漿 就使用於本發明之原紙的紙漿原料而言，可使用化學 紙漿。化學紙漿以外，亦可依用途而使用各種紙漿。如此 -14 - 201120281 之紙漿的例，可舉例如脫墨紙漿（DIP )、碎木紙漿（GP )、精製碎木紙漿（RGP )、熱機械紙漿（TMP )、化學 熱機械紙漿（CTMP)、化學硏磨紙漿（CGP)、半化學 紙漿（s C P )等。脫墨紙漿係可使用上質紙、中質紙、下 級紙、新聞紙、傳單、雜誌等之選別古紙或此等混合之無 選別古紙作爲原料之脫墨紙漿等。又’在本發明中使用脫 墨紙漿時係宜調配選別上質紙爲中心之高白色度的紙漿。 在本發明之較佳的態樣中，本發明之原紙係可由含有 化學紙漿之紙漿原料抄紙。於化學紙漿係有藉牛皮紙漿法 所製造者、與以亞硫酸紙漿法所製造者’在本發明中可使 用其兩者，但藉牛皮紙法所製造之化學紙漿（以下，在本 說明書中有時僅稱爲牛皮紙漿）就生產成本方面爲適宜。 一般，化學紙漿係在其製造過程中除去源自木材之成分的 木質素，故紙漿的白色度高，但其反面，所製造之紙的不 透明度有變低之傾向。因此，尤其在使用化學紙漿的紙基 重的印刷用紙中係提昇不透明度爲很大的課題，若依本發 明，可提昇不透明度。 在本發明之較佳的態樣中，於原料紙漿占有之化學紙 漿的含量，全紙漿中爲60重量％以上，更宜爲80重量％以 上，最宜爲9 0重量％以上，尤宜爲1 〇 〇重量％。若化學紙漿 之含量爲1 00重量％，不含有木質素，而使印刷用紙著色之 成分最少。尙且，不含有木質素，故藉由抑制紫外線之吸 收，亦不阻礙螢光染料的效力，故可提高印刷用紙之白色 度。化學紙漿之含量愈低，白色度之點不利。 -15- 201120281 塡料 在本發明中係可任意地使用公知之塡料作爲原紙之塡 料。可單用或倂用例如重質碳酸鈣、輕質碳酸鈣、泥土、 氧化矽、輕質碳酸鈣-氧化矽複合物、高嶺土、燒成高嶺 土、去積層高嶺土、白碳、滑石、碳酸鎂、碳酸鋇、硫酸 鋇、氫氧化鋁、氫氧化鈣、氫氧化鎂、氫氧化鋅、氧化鋅 、氧化鈦、矽酸鈉之礦產進行的中和所製造的非晶質氧化 矽等之無機塡料、或尿素-福馬林樹脂、三聚氰胺系樹脂 、聚苯乙烯樹脂、酚樹脂等之有機塡料。其中，中性抄紙 或鹼性抄紙中之代表性塡料的重質碳酸鈣或輕質碳酸鈣因 提昇不透明度，故較宜使用。紙中塡料率無特別限定，但 宜爲1~40固形分重量％，更宜爲1〇~35固形分重量％。 在本發明中，係可使用公知之製紙用添加劑。例如依 需要可使用硫酸銅或各種之陰離子性、陽離子性、非離子 性或兩性之良率提昇劑、濾水性提昇劑、各種紙力增強劑 或內添加上漿劑等之抄紙用添加助劑。乾燥紙力提昇劑可 舉例如聚丙烯醯胺、陽離子化澱粉，濕潤紙力提昇劑可舉 例如聚醯胺胺表氯醇等。此等之藥品係在均衡性或操作性 等無影響之範圍添加。中性上漿劑可舉例如烷基烯酮偶體 或烯基琥珀酸酐、中性松香上漿劑等。進一步，可依需要 而添加染料、螢光增白劑、pH調整劑、消泡劑、瀝青控制 劑、黏菌控制劑等。 -16- 201120281 抄紙方法·抄紙機 在本發明中之原紙的抄紙方法無特別限定，而可使用 含有頂鋼絲等之長網抄紙機、上網成形機、夾網成型機、 圓網抄紙機、倂用長網抄紙機與圓網抄紙機之板紙抄紙機 、Yankee乾燥機等。抄紙時之pH可爲酸性、中性、鹼性之 任一者，但宜爲中性或鹼性。抄紙速度無特別限定。 原紙之基重 本發明之原紙係依最終製品之印刷用紙之基重而異。 具有70g/m2以下之基重的印刷用紙（以下亦稱爲「低基重 之印刷用紙」）時，原紙之基重宜爲60g/m2以下，更宜爲 2 0〜6 0g/m2，最宜爲20〜40g/m2。一般基重低之紙因紙厚很 薄’故不透明度變低，若依本發明，爲低基重同時並可提 高不透明度。 又，依本發明，製造塗佈紙時，可使原紙藉線上軟輾 壓機、線上傾斜輾壓機等，於塗佈步驟之前，預先進行平 滑化。 另外，具有高於70 g/m2之基重的印刷用紙（以下「高 基重之印刷用紙」時，原紙之基重宣爲30g/m2〜200g/m2 ’ 更宜爲 40g/m2〜130g/m2。 透明塗佈 本發明之印刷用紙係亦可於上述之原紙的單面或雙面 具有透明塗佈層。藉由於原紙上實施透明塗佈，可提昇原 -17- 201120281 紙之表面強度或平滑性，又，可提昇進行顏料塗佈時之塗 佈性。在本發明中，可於透明塗佈層含有藍色•紫色顏料 ，其時，於透明塗佈之塗佈液中調配藍色•紫色顏料，只 要於原紙上塗佈其即可。透明塗佈之量係每單面以固形分 宜爲 0.1~1.0g/m2，更宜爲 0.2〜0.8g/m2。 在本發明中透明塗佈謂使用上漿沖壓、閘輥塗佈機、 預金屬化上漿沖壓機、簾塗佈機、噴塗機等之塗佈機（塗 佈機），使以澱粉、氧化澱粉等之各種澱粉、聚丙烯醯胺 、聚乙烯醇等之水溶性高分子作爲主成分之塗佈液（表面 處理液）塗佈（上漿沖壓）於原紙上。 顏料塗佈 本發明之印刷用紙係亦可藉顏料塗佈設有顏料塗佈層 而形成塗佈紙。在本發明之印刷用紙的顏料塗佈層可爲單 層，亦可爲多層。爲得到低基重之印刷用紙，宜爲單層。 另外，從得到高基重之印刷用紙的觀點，宜使顏料塗佈層 爲多層。顔料塗佈層具有多層構造時，只要於構成顏料塗 佈層之複數的層之任一層以上含有藍色•紫色顏料即可。 爲使藍色·紫色顏料存在於顏料塗佈層，只要使用含有該 顏料之塗料而進行顏料塗佈即可。在本發明中塗佈方法無 特別限定，可使用公知之原料而依公知之方法。 預輾壓處理 在本發明中，藉由線上軟輾壓機、線上傾斜輾壓機等 -18- 201120281 於塗佈前之原紙進行預輾壓機處理，使原紙預先平滑化’ 就使塗佈後之塗佈層均一化，佳。此時，處理線壓宜爲 30〜100 kN/m，更佳係50〜100 kN/m。又，進行預輾壓機處 理時之原紙的水分率亦很重要，水分率宜爲3〜5 %。 塗佈步驟 本發明之印刷用塗佈紙係如以上般在所得到之原紙上 ，使以顏料與接著劑作爲主成分之塗佈液進行塗佈、乾燥 而設有塗佈層。塗佈係可於原紙之表面單面，亦可爲雙面 ，但不捲曲，表背之物性未相異，故宜爲雙面塗佈。 於塗佈層所含有之顏料 使用於本發明的塗佈層的藍色*紫色顏料以外之顏料 (以下，亦稱爲「白色顏料」）的種類，可使用於塗佈用 紙自以往所使用者。例如依需要而可單用或倂用高嶺土、 泥土、工程用高嶺土、去積層泥土、重質碳酸鈣、輕質碳 酸鈣、滑石、二氧化鈦、硫酸鋇、硫酸鈣、氧化鋅、矽酸 、矽酸鹽、膠體氧化矽、砂白等之無機顔料及密實型、中 空型、或核-殼型等之有機顏料等。 低基重之印刷用紙時’顔料之種類從高的白色度之觀 點，宜爲重質碳酸銘及輕質碳酸耗，又，從亦提昇不透明 度的觀點’尤宜爲齊備粒徑或形狀之輕質碳酸鈣。膨鬆之 塗佈層構造因使光有效率地散射。於塗佈液調配碳酸銘時 ，輕質碳酸鈣或重質碳酸鈣、或合併其兩者之含量係顔料 -19- 201120281 每100重量份，宜爲50重量份以上，更宜爲70重量份以上 ，最宜爲80重量份以上。又，於原紙上形成均一的塗佈層 之觀點，平均粒徑以Malvern公司製Mastersizer S等之雷射 繞射式粒度分布測定機所測定之値宜爲〇·2〜5μιη，更宜爲 0.2 〜3 μ m 〇 另外，高基重之印刷用紙時一般係高嶺土、泥土、工 程用高嶺土、去積層泥土等之泥土類的調配量多。但，若 形成如此之調配，白紙光澤度提昇後，白色度會降低。但 ’在本發明中，藉由含有藍色•紫色顏料，即使高調配泥 土類，未降低白色度，可維持高品質。又，就提昇白色度 之顏料而言，如前述般的重質碳酸鈣及輕質碳酸鈣，進一 步從亦提昇不透明度的觀點，可使用齊備粒徑或形狀之輕 質碳酸鈣。 因而，在高基重之印刷用紙中，在顏料塗佈層之白色 顔料’宜倂用由高嶺土、泥土、工程用高嶺土及已去積層 之泥土所構成之群選出的1種類以上之顏料（亦稱爲「第1 顏料」）、與由重質碳酸鈣及輕質碳酸鈣所構成之群選出 的1種類以上之顏料（亦稱爲「第2顏料」）。其中，第1 顏料宜使用高嶺土，第2顔料宜使用輕質碳酸鈣。第1顏 料之合計與第2顔料之合計的調配比（重量比）宜爲 40/60〜70/30 ，更宜爲 46/54〜60/40 ，最宜爲 50/50〜60/40 。 若第1顏料之調配比少於40，有光澤度降低之傾向。另外 ’若第1顏料之調配比多於7〇，印刷用紙之白色度有降低 之傾向。如前述般，藍色.紫色顏料宜存在於顏料塗佈層 -20- 201120281 ，但此時，相對於白色顏料之合計1 0 0重量份，藍色.@ 色顏料宜存在〇.〇〇1~〇.〇5重量份。 又’如前述般，在高基重的印刷用紙中，宜顏料塗佈 層爲多層。此時，就最外層之白色顏料而言，以前述之比 率使用前述第1顏料與第2顏料，在無最外層之內層（原紙 側之層）中的白色顏料亦可使用任意之白色顏料 但，若 考量白色度與光澤度之均衡，在內層之白色顏料宜含有輕 質碳酸鈣或重質碳酸鈣。在內層中之輕質碳酸鈣或重質碳 酸鈣的合計之含量，在內層中之白色顏料的合計每100重 量份，宜爲50重量份以上，更宜爲70重量份以上，最宜爲 80重量份以上。顏料塗佈層爲多層時，藍色•紫色顏料可 存在於內層、最外層之一者或兩者，但如前述般，宜存在 於最外層之量多。此時，藍色•紫色顏料係於最外層相對 於白色顏料之合計100重量份，宜存在0.001〜0.〇5重量份， 且於內層相對於白色顏料之合計100重量份，宜存在 0.001〜0.01重量份之量。 接著劑 在本發明使用之接著劑（Binder )無特別限制，而於 塗佈紙用可使用自以往所使用之接著劑。例如，較佳之接 著劑係適當選擇苯乙烯-丁二烯系、苯乙烯-丙烯酸系、乙 烯-醋酸乙烯酯系、丁二烯-甲基丙烯酸甲酯系、醋酸乙烯 酯-丁基丙烯酸酯系等之各種共聚物及聚乙烯醇、馬來酸 酐共聚物、丙烯酸-甲基丙烯酸甲酯系共聚物等之合成系 -21 - 201120281 接著劑；酪蛋白、大豆蛋白、合成蛋白等之蛋白質類；氧 化澱粉、陽性澱粉、尿素磷酸酯化澱粉、羥乙基醚化澱粉 等之醚化澱粉、糊精等之澱粉類；羧甲基纖維素、羥乙基 纖維素、羥甲基纖維素等之纖維素衍生物等之一般的塗佈 紙用接著劑1種類以上而使用。 使用於本發明之接著劑的量，從印刷適用性、塗佈適 用性而言，相對於顔料100重量份，宜爲2 0〜4 0重量份，更 宜爲25~35重量份。此範圍較佳者係接著劑之總量超過40 重量份時，塗料之黏度變高，以薄膜轉印方式進行塗佈時 易產生氣泡等之操作困擾，未達2 0重量份時，於原紙以薄 膜轉印方式進行塗佈時，很難得到充分的表面強度》 於本發明之塗佈液係顏料與接著劑之外，依需要而可 適當使用分散劑、增黏劑、保水劑、消泡劑、耐水化劑、 調配於一般之塗佈紙用顏料的各種助劑。 塗佈液之調整 在本發明中，塗佈液之調製方法無特別限定，而可依 塗佈機之種類而適當調整。使用刮刀方式之塗佈機時，塗 佈液之固形分濃度宜爲40〜70重量％，更宜爲60~70重量％ 。塗佈液黏度宜以60 rpm測定之Β型黏度爲500〜1000 mPa .s的範圍。 塗佈方法·塗佈機 在本發明中，若爲一般所使用之塗佈機，可使用任一 -22- 201120281 者。可爲機上塗佈機’可爲機後塗佈機，若爲機上塗佈機 ，可使用上漿沖壓塗佈機、閘輥塗佈機等之輥塗佈機、 Buil刮刀塗佈機、刮刀金屬化上漿沖壓塗佈機等之塗佈機 。塗佈速度係無特別限定，但以目前之速度在刮刀塗佈機 中爲5〇0〜1 800 m/分，以上漿沖壓塗佈機宜爲500〜3 000 m/ 分。 塗佈量 低基重之印刷用紙時，塗佈液之塗佈量係每一單面就 固形分宜爲2~15 g/m2 ’更宜爲5〜12 g/m2，最宜爲5〜10 g/m2。在本發明中’在塗佈量少時，品質性高，更可發揮 不透明度提昇之效果。 高基重之印刷用紙時，塗佈液之塗佈量係以所得到之 印刷用紙的基重超過7 0 g/m2之方式適當調整，每一·單面就 固形分宜爲〗5〜40 g/m2，更宜爲18〜37 g/m2，最宜爲21〜34 g/m2。在本發明中’即使比較減少塗佈量，可得到不透明 度高之印刷用紙。 乾燥步驟 在本發明中’乾燥濕潤塗佈層之方法未受限制。例如 ，可單獨或倂用蒸氣過熱缸筒、加熱熱風空氣乾燥機、氣 體加熱乾燥機、電熱乾燥機、紅外線加熱乾燥機等各種之 方法而使用。 -23- 201120281 表面處理 在本發明中，如以上般所製造之紙依需要而 處理。在較佳之態樣中，本發明之印刷用紙係可 機或高溫軟捏輾壓機等之輾壓機表面處理。藉表 可提昇印刷用紙之平滑度或光澤性。在本發明中 捏輾壓機處理。藉由進行軟捏輾壓機處理，於白 透明度一起提昇。在軟捏輾壓機處理中，金屬輥 度爲20°C〜6(TC之時，線壓爲30〜60 kN/m，更fi kN/m。又，若爲金屬輥之表面溫度爲40°C〜250°C 捏輾壓機處理，線壓爲60〜400 kN/m、宜爲150〜 ，更宜爲100~3 50 kN/m。若提高溫度，塗佈紙之 澤、平滑度提昇。 3.印刷用紙 基重 本發明之印刷用紙的基重有高於70 g/m2之情 g/m2以下之情形。一般，基重高的紙，亦有紙厚 度高，但本發明之印刷用紙係不透明度更高，且 〇 又，基重低之紙，係紙厚薄，故不透明度變 本發明，爲低基重，並可提高不透明度》在本發 重低之區域易發揮效果，效果更易顯現者，係 g/m2以下之情形。 進行表面 以超輾壓 面處理， ，宜爲軟 色度、不 之表面溫 I % 40-60 之高溫軟 300 kN/m 表面的光 形，與70 ，不透明 白色度高 低，若依 明中，基 基重爲60 -24- 201120281 色相 本發明之印刷用紙的色相係在含有於JIS P 3150所規 定之紫外線的測定中，，値爲〇以上，未達7，且b·値爲d 5 以上’未達-3。更宜a*値爲0以上’未達5’且b*値爲_】〇以 上’未達-5，最宜a*値爲0以上’未達5’且b·値爲_9以上 ’未達-5。如此地，藉由比較降低b 4 ’可增強印刷用紙之 外觀的白度，同時提昇不透明度，可防止印刷時2微透光 灰分 本發明之印刷用紙的紙中灰分係非塗佈紙時，宜爲i 〇 重量％以上，塗佈紙時，宜爲3 0重量％以上。若印刷用紙 之灰分少於1 〇重量％，不透明度未充分提高。 螢光增白強度 本發明之印刷用紙係即使螢光增白強度爲5 . 5以下， 亦可得到充分的白色度，但從提昇白色度之觀點，宜螢光 增白強度爲4.0以上。 不透明度 本發明之印刷用紙的不透明度爲8 5 %以上。 【實施方式】 〔實施例〕 -25- 201120281 以下舉出實施例及比較例，更詳細地說明本發明，但 表 別 分 % 及 份 之 中 例 ο 例 施 實 於 定 限 僅 〇 UF 多 ％ 並量 明重 發及 本份 . 量 然重 當示 〔品質評估方法〕 以下記載之品質評估方法係評估本發明之印刷用紙的 品質。 (1 )色相測定方法（1/ ):依據JIS P8150，以村上 色彩（股）公司製色差計CMS-3 5 SPX，以含有紫外光之光 源測定。 (2 ) ISO白色度測定方法：依據JIS P8148，以村上色彩 (股）公司製色差計CMS-35 SPX，以含有紫外光之光源測 定。 (3 )不透明度測定方法：依據JIS P8149，以村上色彩（ 股）公司製色差計CMS-35SPX測定。 (4 )灰分測定方法：依據JIS P 825 1而測定。 (5)螢光增白強度：以村上色彩（股）公司製色差計 CMS-35SPX，從以含有紫外光之光源測定的ISO白色度的 値，減去以不含有紫外光之光源所測定的白色度之値的差 ，作爲螢光增白強度》 (6 )對色：在室內螢光燈照明下以目視評估印刷用紙表 面的對色。 (7 )外觀之白度：在室內螢光燈照明下以目視評估印刷 用紙表面的白度。對於顏色的白度係白色度未必應與以眼 -26- 201120281 看到時的白度相關。目視之評估爲4階段。◎:非常白， 〇：白色，△:略看到凝濛狀，或略看到黃斑，X :可看 到凝濛狀，或看到黃斑。 (8 )印刷時之微透光：以平版輪轉機於單面實施墨點印 刷的印刷用紙，從印刷背側觀察，以目視評估微透光。目 視之評估爲4階段。◎:幾乎無法辨認背面的印刷部，〇 :背面之印刷部不明顯，△:印刷部略明顯，X :印刷部 明顯，使背面之畫質或外觀劣化。 (9 )色紋：使印刷用紙之色紋依以下之基準藉目視以4階 段評估。◎:色紋無法辨認，◦:無明顯色紋，△:有色 紋，X :色紋明顯。 又，對於本發明之印刷用紙亦測定上述以外之品質項 目。 〔材料〕 上漿沖壓液、調配於塗佈液之各材料如下述。 (1)氧化澱粉（日本Cone starch (股）製SK-20) (2 )顏料 •微粒輕質碳酸鈣 •微粒高嶺土（ Hydragloss CaMin公司製） (3 )色材 •藍色顏料（EMT-藍色- DS-18東洋Ink製造（股）公司製 ) •紫色顏料（SA紫色C 1 28 96御國色素（股）公司製） -27- 201120281201120281 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a printing paper having high whiteness and high opacity. [Prior Art] In recent years, printing papers, particularly printing papers for printing, can be used for catalogues and the like for communication and the like, and it is therefore apparent that a tendency to visually obtain a strong whiteness of impression is apparent. The coated paper is of the type of coated paper (A1 coat, A2 coat, A3 coat, micro-coated paper), medium-coated paper, ultra-lightweight coated paper, etc. The product name of the product having different whiteness, gloss, smoothness, and color tone, which is produced by each company, and the use of the raw material of the upper quality system, can mainly use pulp which is bleached kraft pulp as a raw material, so that there are few colored foreign matters. The whiteness is high, but the opacity is low. In addition, the printing paper using the medium-sized raw materials can be blended with a plurality of recycled pulp or mechanical pulp in addition to the bleached kraft pulp. Therefore, the printing paper using the medium-sized raw material has a higher opacity than the upper-grade printing paper, but has a problem that the whiteness is lower than that of the upper-grade printing paper. As such, there is a demand in the printing paper for improving whiteness and opacity together. In general, high basis weight printing papers sometimes have relatively high whiteness and opacity, but seek white which is visually more strongly noticeable. In addition, it is compared with the basis weight, and it is expected that the opacity is higher - 5 - 201120281 brush paper. Therefore, even in the printing paper of high basis weight, there is a demand for further improvement in whiteness and opacity. In addition, the demand for low-weight printing paper has increased in accordance with the requirement to increase the number of pages of the booklet, the cost of paper, and the cost of shipping and mailing. In low-weight printing paper, it is difficult to cause high whiteness and opacity, and in particular, micro-light transmission when printing with a thin object becomes a problem. A method for achieving the enthalpy of whiteness and opacity has been disclosed in which a titanium oxide having a high refractive index is added inside and outside, a hollow plastic pigment is disposed on the coating layer, and a moderate sizing gap is provided in the coating layer, and These methods are combined (Patent Document 1 and Patent Document 2). However, any of the raw materials used in these methods is expensive and has a problem of high cost. [PRIOR ART DOCUMENT] [Patent Document 1] JP-A-2000-3 3 65 93 (Patent Document 2) Japanese Patent Publication No. 52-1 181 16 (Summary of the Invention) [Summary of the Invention] [Invention SUMMARY OF THE INVENTION It is an object of the present invention to provide a printing paper having high whiteness and high opacity. [Means for Solving the Problem] In order to solve the above problems, the inventors of the present invention have focused on the above-mentioned problems, and have made one of the components of the printing paper, including any of the purple and blue color materials. In the above, the printing paper having high whiteness and high opacity can be obtained, and the present invention is finally completed. That is, the present invention encompasses the following inventions. (1) A printing paper comprising one or more color materials selected from the group consisting of a violet pigment, a violet dye, a blue pigment, and a blue dye, and having an opacity of 85% or more, based on Jis P The a*値 and b*値 in the hue of the paper measured by the method of 8 150 are a*値: 0 or more, not up to 7, b*値: -1 5 or more, not up to -3 (but containing ultraviolet rays) Depends on the measurement). (2) The printing paper according to (1), wherein the basis weight is 70 g/m2 or less. (3) The printing paper according to (2), wherein the color material is present in any layer constituting a layer of the printing paper. (4) The printing paper of (2), which has a layer of 2 or more and a basis weight of 7 Og/m2 or less, and the color material is present in a plurality of layers. (5) The printing paper of item (1), wherein the basis weight is higher than 70 g/m2. (6) The printing paper of item (1), wherein the color material is a purple pigment or a blue pigment. [Effects of the Invention] According to the present invention, it is possible to obtain a printing paper having physical properties of both high whiteness and high opacity. In particular, the printing paper of the present invention has a strong white appearance and white color is more visible than the whiteness measured by the machine. In particular, the printing paper of the present invention exhibits excellent high opacity in low basis weights. Further, the printing paper of the present invention has excellent printing surface texture and printing gloss, high smoothness, excellent ink properties, and excellent printability. Further, according to the present invention, when chemical pulp having low opacity is often used as a raw material, the opacity of the printing paper can be sufficiently maintained. In particular, when the color material is divided into two or more layers, color unevenness of the printing paper can be suppressed. [Formation for Carrying Out the Invention] The printing paper of the present invention may be a coated printing paper provided with a coating layer containing a pigment and an adhesive as a main component, or may be a printing paper not provided with the coating layer. . The effect of the present invention is more fully achievable in the coated paper for printing. A coated paper base paper for printing (hereinafter, referred to as "base paper" in the present invention), and a coating layer having at least one layer on one side or both sides of the base paper. Pigment and an adhesive as a main component paper. In the present invention, a printing paper having a pigment coating layer containing a white pigment is referred to as a coated printing paper or a coated paper, and a printing paper not having the pigment coating layer is referred to as a non-coated paper for printing or only It is called uncoated paper. 1. Color material In the present invention, the color material is a colored pigment or dye other than white. In the present invention, the printing paper contains one or more kinds of color materials selected from the group consisting of a violet pigment, a purple dye, a blue pigment, and a blue dye. The pigment is a white or colored powder which is insoluble or poorly soluble or dispersed in water or an oil or an organic solvent, and has inorganic pigments and organic pigments. In the present invention, any of the inorganic pigments and organic pigments -8 - 201120281 may be used as the color material. The dye is an organic dye having an inherent color which is selected to absorb or reflect visible light, and is dyed to an organic dye such as a fiber or a pigment by an appropriate dyeing method. The dye is soluble in solvents (water or organic solvents, etc.). In the present invention, a dye may be used, but a purple pigment and/or a blue pigment is preferably used from the viewpoint of excellent light resistance and prevention of discoloration and coloration of paper over time. In the present invention, "the use of a purple pigment and/or a blue pigment" is used when either a blue pigment or a purple pigment is used, or a blue pigment or a purple pigment is used. Further, in the present invention, "blue pigment and/or purple pigment" may be referred to as "blue/purple pigment", and commercially available blue pigments may, for example, be EMT-blue DS-1 8 Toyo ink. The commercially available purple pigment may, for example, be a commercially available purple pigment, such as SA Violet C12896. The blue pigment may be used alone or the purple pigment may be used alone, but both may be used in combination. To improve opacity, purple pigments should be used. Further, in the present invention, color materials other than blue or purple such as black, red, and yellow may be added as needed. As the blue pigment or the violet pigment, any of an inorganic pigment and an organic pigment can be used as described above. Specific examples of the blue pigment include, for example, ultramarine blue, light blue, Prussian blue (indigo), ultramarine blue, cyanine blue, cobalt blue (cobalt aluminate), cerulean blue (sinus acid), cobalt chrome blue, Gu · Aluminum • Tantalum Oxide, Cobalt • Zinc • Antimony Oxide, Manganese Blue, Titanium Cyanine. Further, specific examples of the purple pigment include cobalt violet (cobalt citrate 'cobalt cobalt sulfate 'cobalt lithium lithium oxide, hydrous ammonium phosphate, cobalt borate, etc.), purple cyanine, titanium oxide purple, manganese purple, mineral purple An inorganic pigment, an anthraquinone, a quinacridone, an anthraquinone, an anthraquinone, a carboline, or a xanthene-based organic pigment. -9- 201120281 In the present invention, since the printing paper contains a certain amount of blue/purple pigment and the hue is the range of the hue described later '俾, the surface color of the printing paper is blue-white, and the white color of the appearance is enhanced' while enhancing the opacity. It can prevent micro light transmission during printing. The blue pigment and the violet pigment in the present invention are used to form a printing paper into a color material of a different color when it is contained in printing paper. If you add a separate color material, change the hue of the paper in the direction shown in Figure 1. Fig. 1 is a graph showing changes in the hue of a paper containing no color material of the present invention and a paper containing the same, based on the L*a*b* color system. The hue is represented by a* 値 (+) direction of 0 °, (-) direction of 180 ° b * 値 (+) direction of 90 °, (-) direction of 270 °, if the paper before adding is If the position of the origin is zero, if the blue color material is added, the hue of the paper added after the "blue" and the 210° or more as shown in Fig. 1 is less than 280°, if the purple color material is added. The hue of the paper added with "purple" and the portion of 280 ° or less as shown in Fig. 1 which is less than 3 3 5 ° changes. The content of the color material is not particularly limited as long as the content of the color material used in the present invention is 0. The total amount of the color material is preferably 0.7 mg or more and 3 · 5 mg or less, more preferably 0.9 mg or more and 3.0 mg or less per 1 m 2 of the printing paper. . As described above, in the present invention, a purple pigment and/or a blue pigment is preferably used as the color material, and the total content of the pigments is preferably as described above. In general, if the total content of the violet pigment and the blue pigment is less than 0.7 mg, the absorption of light by the pigment is small, so that the concealment of opacity is avoided. Further, in general, the above total amount is more than 3.5 m g, and the amount of light absorbed by the pigment is large, which greatly contributes to the improvement of opacity, but the hue is far from the defect, and white is not felt, which is not preferable. When the amount of the above-mentioned pigment is within the above range, the total amount of the color materials can be appropriately adjusted by the whiteness of the raw material or the base paper. When the printing paper contains a base paper layer, a two-pulp layer, and a pigment coating layer, the total content of each layer is Hey, according to the following formula. In the following formula, the case of using a blue pigment and a violet pigment as a color material is shown. [Formula 1] Total amount (mg/m2) = {base paper basis weight (g/m2) X pulp content in base paper x content of blue pigment and purple pigment of base paper (mg/pulp lg) } + [sizing Coating amount of stamping solution (double-sided) (g/m2) x {Total weight of blue pigment and purple pigment in the winning liquid pressure / total solid parts by weighting in the stamping} + pigment coating liquid Coating amount (double sided) (g/m2) ><{Total parts by weight of blue pigment and violet pigment in pigment cloth solution/total solid parts by weight of pigment coating} χ1000 Layer containing color material In the present invention, the color material system may also be contained in printing paper The responsibility of the person. In the present invention, for example, any layer constituting a layer of printing paper may be used as a color material. At this time, there is an advantage that the printing paper can be manufactured relatively simply.刖 , containing > pressure in the middle of the liquid coating layer -11 - 201120281 suitable for the coating layer contains blue • purple pigment. When there is a layer of the same layer on both sides of the base paper (for example, a coating layer provided on both sides), there is a blue color on the first layer. The purple pigment means that when the coating layer of the double-sided coating contains a blue/purple pigment, or Among the coating layers on both sides, the coating layer of 1 contains a blue/purple pigment. In the present invention, as described above, it is preferable to use a blue-purple pigment as a color material. Therefore, unless otherwise stated, the case where a blue/purple pigment is used as a color material will be described. The blue/purple pigment may be contained in the base paper, or may be contained in the sizing press liquid if it is a printing paper provided with a coating layer, or may be contained in the coating layer. Further, when the base paper layer and/or the coating layer are two or more layers, they may be contained in any of the layers, and may be contained in all of the layers. From the point of view of ease of manufacture, blue/purple pigments are suitable for coating layers. Generally, printing paper is classified into a coated paper having a pigment coating layer containing a general pigment and a non-coated paper containing no pigment coating layer. As usual, the pigments are, for example, kaolin soil, mud, and the like. The coating layer containing this pigment is referred to simply as "pigment coating layer" in the present invention. Coated paper and non-coated paper, if necessary, an aqueous solution (sizing stamping solution) of a water-soluble polymer binder such as starch or polypropylene decylamine or polyvinyl alcohol is coated on a base paper to provide a transparent coating layer. . Therefore, the printing paper of the present invention is provided with one or both of a transparent coating layer and a pigment coating layer on one side or both sides of the base paper. Therefore, the printing paper of the present invention contains the following aspects. 1) Coated paper having a base paper layer and a pigment coating layer The blue/purple pigment in the coated paper is present in either or both of the base paper layer and the pigment coating layer. -12- 201120281 2 ) Coating with a base paper layer and a transparent coating layer and a pigment coating layer. The blue color of the coating paper is present in one layer selected from the original coating layer and the pigment coating layer. Or multiple layers. 3) Uncoated paper with a base paper layer. Blue/purple pigments are present in the uncoated paper. 4) Original paper layer and transparent coating layer Uncoated paper in this uncoated paper. • A purple pigment is present in either or both of the original coating layers. Among them, if the blue/purple pigment is present in a plurality of layers, the whiteness or opacity of the appearance of the brush paper is increased and the color of the brush paper is uneven. In the present invention, the term "blue" and "violet" means a layer which is present in a blue-purple pigment phase (for example, a base paper layer and a coating layer). On the double-sided storage layer of the base paper (for example, the coating layer provided on both sides), when the two coating layers contain a purple pigment, it is not equivalent to the presence of a blue/purple pigment in two layers. The layer has a blue/purple pigment pattern, and is easy to exert in a low-basisity printing paper which is particularly light-transmissive, that is, a base paper weight of 70 g/m2. The ratio of the blue/purple pigment of each layer when the blue/purple pigment of the present invention is present in a plurality of layers is not particularly limited, but the present invention is enjoyed in a small amount by the ratio of the pigment of the coating layer of the outermost layer. The effect. For example, it is preferred to have the amount of the blue-purple pigment present more than the amount of the color pigment present in the layer on the inner side. ί paper paper, layer of the layer. The paper layer and the transparent layer can be printed on the same layer of the same color as the problem of the coloring ij, mx L" and the like. Blue•Purple-13-201120281 2. Production of Printing Paper The printing paper of the present invention is produced by a known method. For example, in the coated paper for printing of the present invention, the papermaking material described below is prepared by a steel wire portion, and then the base paper can be supplied to the press portion and the pre-dryer portion, and then the coating machine portion is coated with a coating machine described later. After the cloth liquid is applied onto the base paper, it can be supplied to the post dryer portion, the rolling portion, the winding portion, the winder portion, and the like. Moreover, in the case of uncoated paper for printing, the papermaking papermaking material is processed by the steel wire portion, and then the raw paper is supplied to the pressing portion and the pre-drying machine portion, and the water-soluble polymer (adhesive) is transparently coated on the base paper. Made of cloth. Base paper The printing paper of the present invention has at least a base paper layer. The base paper used in the present invention may be a single layer of papermaking or a multi-layer papermaking. When the base paper of the present invention has a multilayer structure, it may contain blue/purple pigment in any of the layers constituting the plural of the base paper. The blue/purple pigment is present on the base paper layer. Therefore, the base paper of the papermaking raw material containing the pigment may be used. The production of the base paper of the present invention is not particularly limited, and a base paper is produced by a known method using a known raw material. Raw Material Pulp For the pulp raw material used in the base paper of the present invention, chemical pulp can be used. In addition to chemical pulp, various pulps can also be used depending on the application. Examples of the pulp of the above -14 to 201120281 include, for example, deinked pulp (DIP), wood pulp (GP), refined wood pulp (RGP), thermomechanical pulp (TMP), chemical thermomechanical pulp (CTMP), Chemical honing pulp (CGP), semi-chemical pulp (s CP ), and the like. The deinked pulp system may be a deinking pulp or the like which is used as a raw material for selecting an antique paper such as a top paper, a medium paper, a lower paper, a news paper, a leaflet, a magazine, or the like. Further, in the case where the deinked pulp is used in the present invention, it is preferred to mix a pulp having a high whiteness centered on the upper paper. In a preferred aspect of the invention, the base paper of the present invention may be paper-laid from a pulp stock containing chemical pulp. In the chemical pulp, there are those produced by the kraft pulp method and those manufactured by the sulfite pulp method, which can be used in the present invention, but the chemical pulp produced by the kraft method (hereinafter, in the present specification It is only referred to as kraft pulp) and is suitable in terms of production cost. In general, chemical pulp is used to remove lignin derived from wood components during its manufacture, so that the whiteness of the pulp is high, but on the reverse side, the opacity of the produced paper tends to be low. Therefore, the opacity is particularly a problem in paper-based printing papers using chemical pulp, and the opacity can be improved according to the present invention. In a preferred aspect of the present invention, the content of the chemical pulp contained in the raw material pulp is 60% by weight or more, more preferably 80% by weight or more, and most preferably 90% by weight or more, more preferably 90% by weight or more. 1 〇〇% by weight. If the content of the chemical pulp is 100% by weight, lignin is not contained, and the components for coloring the printing paper are minimized. Further, since lignin is not contained, the whiteness of the printing paper can be improved by suppressing the absorption of ultraviolet rays and not inhibiting the effectiveness of the fluorescent dye. The lower the content of the chemical pulp, the lower the degree of whiteness. -15- 201120281 Dipping In the present invention, a known kneading material can be arbitrarily used as a base paper. It can be used alone or in the form of, for example, heavy calcium carbonate, light calcium carbonate, earth, cerium oxide, light calcium carbonate-yttria composite, kaolin, calcined kaolin, de-layered kaolin, white carbon, talc, magnesium carbonate, Inorganic pigments such as amorphous cerium oxide produced by neutralization of minerals such as barium carbonate, barium sulfate, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, zinc hydroxide, zinc oxide, titanium oxide, and sodium citrate Or an organic dipoxide such as urea-formalin resin, melamine resin, polystyrene resin, or phenol resin. Among them, heavy calcium carbonate or light calcium carbonate which is representative of the raw materials in neutral paper or alkaline papermaking is preferred because it enhances opacity. The sampling rate in the paper is not particularly limited, but it is preferably from 1 to 40% by weight, more preferably from 1 to 35% by weight. In the present invention, a known papermaking additive can be used. For example, copper sulfate or various anionic, cationic, nonionic or amphoteric yield enhancers, water filter enhancers, various paper strength enhancers or internal sizing agents may be used as additives for papermaking. . The dry paper strength enhancer can be exemplified by polyacrylamide, cationized starch, and wet paper strength enhancer, for example, polyamine amine epichlorohydrin. These drugs are added in an unaffected range such as balance or operability. The neutral sizing agent may, for example, be an alkyl ketene or an alkenyl succinic anhydride, a neutral rosin sizing agent or the like. Further, a dye, a fluorescent whitening agent, a pH adjuster, an antifoaming agent, an asphalt control agent, a slime controlling agent, and the like may be added as needed. -16-201120281 Papermaking method and papermaking machine The papermaking method of the base paper in the present invention is not particularly limited, and a long wire paper machine including a top wire or the like, an internet forming machine, a net forming machine, a cylinder paper machine, and a paper machine can be used. A paper machine for a long net paper machine and a rotary paper machine, a Yankee dryer, and the like. The pH at the time of papermaking may be any of acidic, neutral, and alkaline, but it is preferably neutral or alkaline. The papermaking speed is not particularly limited. Basis Weight of Base Paper The base paper of the present invention varies depending on the basis weight of the printing paper of the final product. When the printing paper having a basis weight of 70 g/m 2 or less (hereinafter also referred to as "low basis weight printing paper"), the basis weight of the base paper is preferably 60 g/m 2 or less, more preferably 20 0 to 60 g/m 2 , most It should be 20~40g/m2. Generally, paper having a low basis weight is thin because of the thinness of the paper, so that the opacity becomes low, and according to the present invention, it is low in basis weight and can improve opacity. Further, according to the present invention, when the coated paper is produced, the base paper can be wound on the line by a soft press, an in-line tilting press, or the like before the coating step. Further, in the case of printing paper having a basis weight of more than 70 g/m2 (hereinafter, "high basis weight printing paper", the basis weight of the base paper is 30 g/m2 to 200 g/m2', more preferably 40 g/m2 to 130 g/ M2. Transparent coating The printing paper of the present invention may also have a transparent coating layer on one or both sides of the above-mentioned base paper. The surface strength of the original -17-201120281 paper may be improved by performing transparent coating on the base paper. The smoothness and the coating property at the time of pigment coating can be improved. In the present invention, a blue/purple pigment can be contained in the transparent coating layer, and in the case, the blue coating liquid is blended in the coating liquid. • A purple pigment, as long as it is coated on a base paper, and the amount of the transparent coating is 0.1 to 1.0 g/m 2 , more preferably 0.2 to 0.8 g/m 2 , per one side. Coating is a coating machine (coating machine) using a sizing press, a gate roll coater, a pre-metallized sizing press, a curtain coater, a spray coater, etc., and various starches such as starch and oxidized starch are used. a coating solution of a water-soluble polymer such as polyacrylamide or polyvinyl alcohol as a main component (surface treatment) Coating (slurry pressing) on a base paper. Pigment coating The printing paper of the present invention may be coated with a pigment coating layer to form a coated paper by pigment coating. Pigment coating of the printing paper of the present invention. The layer may be a single layer or a plurality of layers. In order to obtain a printing paper having a low basis weight, it is preferably a single layer. Further, from the viewpoint of obtaining a printing paper having a high basis weight, it is preferred to make the pigment coating layer a plurality of layers. When the layer has a multilayer structure, it is only necessary to contain a blue/purple pigment in any one of the plurality of layers constituting the pigment coating layer. In order to allow the blue/purple pigment to be present in the pigment coating layer, it is only necessary to use the pigment. In the present invention, the coating method is not particularly limited, and a known method can be used, and a known method can be used. In the present invention, the pre-twisting treatment is performed by an online soft rolling machine and inclined on a line. Pressing machine, etc. -18- 201120281 Pre-pressing the base paper before coating to smooth the base paper in advance 'The coating layer after coating is uniform, preferably. At this time, the processing line pressure should be 30. ~100 kN/m, better system 5 0 to 100 kN/m. Further, the moisture content of the base paper when the pre-pressing machine is processed is also important, and the moisture content is preferably 3 to 5%. Coating Step The coated paper for printing of the present invention is as above On the obtained base paper, a coating liquid containing a pigment and an adhesive as a main component is applied and dried to provide a coating layer. The coating layer may be applied to one surface of the base paper, or may be double-sided, but not The curling and the physical properties of the back are not different, so it is preferably double-coated. The pigment contained in the coating layer is used for the pigment other than the blue*violet pigment of the coating layer of the present invention (hereinafter, also referred to as " The type of white pigment ") can be used for coating papers from conventional users. For example, kaolin, clay, engineering kaolin, de-laden soil, heavy calcium carbonate, and light calcium carbonate can be used alone or in combination. Inorganic pigments such as talc, titanium dioxide, barium sulfate, calcium sulfate, zinc oxide, decanoic acid, decanoate, colloidal cerium oxide, sand white, and organic pigments such as dense, hollow, or core-shell type. For low-weight printing papers, 'the type of pigments should be heavy carbonic acid and light carbonic acid from the viewpoint of high whiteness, and from the viewpoint of improving opacity, it is especially suitable for particle size or shape. Light calcium carbonate. The bulky coating layer structure scatters light efficiently. When the coating liquid is formulated with carbonic acid, the content of light calcium carbonate or heavy calcium carbonate, or a combination thereof, is -19-201120281, preferably 100 parts by weight or more, more preferably 70 parts by weight, per 100 parts by weight. The above is most preferably 80 parts by weight or more. Further, from the viewpoint of forming a uniform coating layer on the base paper, the average particle diameter is 〇 2 to 5 μmη, more preferably 0.2, as measured by a laser diffraction type particle size distribution measuring machine such as Mastersizer S manufactured by Malvern Co., Ltd. ~3 μ m 〇 In addition, high-weight heavy printing papers generally have a large amount of clay, such as kaolin, clay, engineering kaolin, and muddy soil. However, if such a blending is formed, the whiteness will decrease after the gloss of the white paper is increased. However, in the present invention, by containing a blue/purple pigment, even if the clay is highly blended, the whiteness is not lowered, and high quality can be maintained. Further, in terms of the whiteness-increasing pigment, as described above, the heavy calcium carbonate and the light calcium carbonate, further from the viewpoint of also improving the opacity, a light calcium carbonate having a uniform particle size or shape can be used. Therefore, in the high-weight printing paper, the white pigment in the pigment coating layer is preferably one or more pigments selected from the group consisting of kaolin, clay, engineering kaolin and soil which has been deposited. One type or more of pigments (also referred to as "second pigments") selected from the group consisting of heavy calcium carbonate and light calcium carbonate. Among them, kaolin is preferably used for the first pigment, and light calcium carbonate is preferably used for the second pigment. The ratio (weight ratio) of the total of the first pigment to the total of the second pigment is preferably 40/60 to 70/30, more preferably 46/54 to 60/40, and most preferably 50/50 to 60/40. If the blending ratio of the first pigment is less than 40, the gloss tends to decrease. Further, when the blending ratio of the first pigment is more than 7 Å, the whiteness of the printing paper tends to decrease. As described above, the blue. violet pigment is preferably present in the pigment coating layer -20-201120281, but at this time, the total amount of the blue color of the blue pigment is preferably present in the case of 100% by weight of the white pigment. ~〇.〇5 parts by weight. Further, as described above, in the high basis weight printing paper, it is preferred that the pigment coating layer be a plurality of layers. In this case, the first pigment and the second pigment are used in the above-mentioned ratio for the white pigment of the outermost layer, and any white pigment may be used as the white pigment in the inner layer (the layer on the base paper side) having no outermost layer. However, if the balance between whiteness and gloss is considered, the white pigment in the inner layer should preferably contain light calcium carbonate or heavy calcium carbonate. The total content of the light calcium carbonate or the heavy calcium carbonate in the inner layer is preferably 50 parts by weight or more, more preferably 70 parts by weight or more, per 100 parts by weight of the total of the white pigment in the inner layer, and is most suitable. It is 80 parts by weight or more. When the pigment coating layer is a plurality of layers, the blue/purple pigment may be present in one of the inner layer and the outermost layer, or both, but as described above, it is preferably present in the outermost layer in a large amount. In this case, the blue/purple pigment is preferably present in an amount of 0.001 to 0.5 parts by weight based on 100 parts by weight of the total outer layer relative to the white pigment, and is preferably present in an amount of 0.001 parts by weight based on 100 parts by weight of the inner layer relative to the white pigment. ~0.01 parts by weight. The adhesive agent used in the present invention is not particularly limited, and an adhesive used in the past can be used for the coated paper. For example, a preferred adhesive is a styrene-butadiene type, a styrene-acrylic type, an ethylene-vinyl acetate type, a butadiene-methyl methacrylate type, a vinyl acetate-butyl acrylate type. Synthesis of various copolymers and polyvinyl alcohol, maleic anhydride copolymer, acrylic acid-methyl methacrylate copolymer, etc.-21 - 201120281 followed by; protein of casein, soy protein, synthetic protein, etc.; Starch of oxidized starch, positive starch, urea phosphated starch, etherified starch such as hydroxyethyl etherified starch, dextrin, etc.; carboxymethyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose, etc. A general coated paper such as a cellulose derivative is used in an amount of one or more kinds of an adhesive. The amount of the adhesive to be used in the present invention is preferably from 20 to 40 parts by weight, more preferably from 25 to 35 parts by weight, per 100 parts by weight of the pigment, from the viewpoints of printing suitability and coating suitability. In this range, when the total amount of the adhesive is more than 40 parts by weight, the viscosity of the coating becomes high, and the operation of the film is easily caused by the film transfer method, and when it is less than 20 parts by weight, the base paper is used. When coating by a film transfer method, it is difficult to obtain sufficient surface strength. In addition to the coating liquid pigment and the adhesive of the present invention, a dispersing agent, a tackifier, a water retaining agent, or a solvent can be suitably used as needed. A foaming agent, a water-resistant agent, and various additives formulated in general pigments for coated paper. Adjustment of Coating Liquid In the present invention, the preparation method of the coating liquid is not particularly limited, and may be appropriately adjusted depending on the type of the coating machine. When a doctor blade type coater is used, the solid concentration of the coating liquid is preferably 40 to 70% by weight, more preferably 60 to 70% by weight. The viscosity of the coating liquid is preferably in the range of 500 to 1000 mPa.s as measured by a rpm of 60 rpm. Coating method and coater In the present invention, any one of -22-201120281 can be used as a coating machine generally used. It can be an on-machine coater' which can be a post-machine coater. If it is an on-machine coater, it can use a roll coater such as a sizing press coater or a gate roll coater, or a Buil blade coater. A coating machine such as a doctor blade metallized sizing press coater. The coating speed is not particularly limited, but it is 5 〇 0 to 1 800 m/min in the blade coater at the current speed, and the above-mentioned sizing press machine is preferably 500 to 3 000 m/min. When the printing paper having a low basis weight is applied, the coating amount of the coating liquid is preferably 2 to 15 g/m2 for each single side, more preferably 5 to 12 g/m2, and most preferably 5 to 12 10 g/m2. In the present invention, when the amount of coating is small, the quality is high, and the effect of improving the opacity can be exhibited. When the printing paper of high basis weight is used, the coating amount of the coating liquid is appropriately adjusted so that the basis weight of the obtained printing paper exceeds 70 g/m 2 , and the solid content of each single side is 〖5 to 40 g/m2, more preferably 18 to 37 g/m2, most preferably 21 to 34 g/m2. In the present invention, even if the coating amount is relatively reduced, a printing paper having a high opacity can be obtained. Drying step In the present invention, the method of drying the wet coating layer is not limited. For example, it can be used alone or in combination with various methods such as a steam overheating cylinder, a heated hot air dryer, a gas heating dryer, an electric dryer, and an infrared heating dryer. -23- 201120281 Surface treatment In the present invention, the paper produced as above is treated as needed. In a preferred aspect, the printing paper of the present invention is surface treated by a press machine such as a machine or a high temperature soft kneading press. The borrowing table can improve the smoothness or gloss of the printing paper. In the present invention, the kneading press process is performed. By performing a soft pinch press process, the white transparency is improved together. In the soft kneading press process, the metal roll is 20 ° C ~ 6 (TC time, the line pressure is 30 ~ 60 kN / m, more fi kN / m. Also, if the surface temperature of the metal roll is 40 °C~250°C kneading press, line pressure is 60~400 kN/m, preferably 150~, more preferably 100~3 50 kN/m. If the temperature is increased, the texture of the coated paper and smoothness 3. The basis weight of printing paper The basis weight of the printing paper of the present invention is higher than 70 g/m 2 g/m 2 or less. Generally, paper having a high basis weight also has a high paper thickness, but the present invention The printing paper is more opaque, and the paper with a lower basis weight is thicker than the paper, so the opacity becomes the invention, the low basis weight, and the opacity can be improved in the low-weight area. , the effect is more easy to appear, is the case of g / m2 or less. The surface is treated with a super-pressure surface, which is preferably a soft color, not a surface temperature I % 40-60 high temperature soft 300 kN / m surface light shape , with 70, opaque whiteness, if the basis weight, the base weight is 60 -24- 201120281 Hue The hue of the printing paper of the present invention is contained in JIS P 3150 In the determination of ultraviolet rays, 値 is above 〇, not up to 7, and b·値 is d 5 or more 'not up to -3. More preferably a* 値 is 0 or more 'not up to 5' and b* 値 is _] 〇The above 'not up to -5, the most suitable a* 値 is 0 or more 'not up to 5' and b·値 is _9 or more 'not up to -5. Thus, by comparing b 4 ', the printing paper can be enhanced. The whiteness of the appearance and the improvement of the opacity can prevent the 2 micro-light ash from being printed. The ash-based uncoated paper in the paper of the printing paper of the present invention should preferably be more than i% by weight, and when coated, it should be 30% by weight or more. If the ash content of the printing paper is less than 1% by weight, the opacity is not sufficiently improved. Fluorescent whitening intensity The printing paper of the present invention can be obtained even if the fluorescent whitening strength is 5.5 or less. A sufficient degree of whiteness, but from the viewpoint of enhancing whiteness, the whitening intensity of the fluorescent white light is 4.0 or more. Opacity The opacity of the printing paper of the present invention is 85 % or more. [Embodiment] [Example] -25- 201120281 Hereinafter, the present invention will be described in more detail by way of examples and comparative examples, but the parts are divided into % and parts. In the example ο, the example is applied only to the limit of UF and the amount is re-issued and the quantity is given. The quantity is shown as the quality evaluation method. The quality evaluation method described below evaluates the quality of the printing paper of the present invention. 1) Hue measurement method (1/): According to JIS P8150, CMS-3 5 SPX, manufactured by Murakami Color Co., Ltd., is measured by a light source containing ultraviolet light. (2) ISO whiteness measurement method: According to JIS P8148 CMS-35 SPX, manufactured by Murakami Color Co., Ltd., was measured with a light source containing ultraviolet light. (3) Method for measuring opacity: According to JIS P8149, it was measured by CMS-35SPX manufactured by Murakami Color Co., Ltd. (4) Method for measuring ash: Measured in accordance with JIS P 825 1. (5) Fluorescent whitening intensity: CMS-35SPX, manufactured by Murakami Color Co., Ltd., measured from the ISO whiteness measured by a light source containing ultraviolet light, subtracted from the light source not containing ultraviolet light. The difference between the whiteness and the whiteness is as the fluorescent whitening intensity. (6) Color: The color of the surface of the printing paper is visually evaluated under indoor fluorescent lighting. (7) Whiteness of appearance: The whiteness of the surface of the printing paper was visually evaluated under indoor fluorescent lighting. The whiteness of the whiteness of the color is not necessarily related to the whiteness when seen in the eye -26-201120281. The visual assessment is 4 stages. ◎: Very white, 〇: white, △: slightly condensed, or slightly seeing the macula, X: can be seen condensed, or see the macula. (8) Micro-light transmission during printing: Printing paper on which ink dots were printed on one side by a lithographic rotary machine, and micro light transmission was visually observed from the back side of the printing. The visual assessment is 4 stages. ◎: The printing portion on the back side was hardly recognized, 〇: the printing portion on the back side was not noticeable, Δ: the printing portion was slightly noticeable, and X: the printing portion was noticeable, and the image quality or appearance on the back surface was deteriorated. (9) Color pattern: The color pattern of the printing paper is evaluated in the fourth stage by the following basis. ◎: The color pattern can not be recognized, ◦: no obvious color pattern, △: colored pattern, X: obvious color pattern. Further, the quality paper other than the above was also measured for the printing paper of the present invention. [Material] The sizing press solution and the materials to be applied to the coating liquid are as follows. (1) Oxidized starch (SK-20 made by Japan Cone starch) (2) Pigment • Particulate light calcium carbonate • Particulate kaolin (made by Hydragloss CaMin) (3) Color material • Blue pigment (EMT-blue - DS-18 Toyo Ink Manufacturing Co., Ltd.) • Purple pigment (SA purple C 1 28 96 Royal Film Co., Ltd.) -27- 201120281
Japan •黑色顏料（SA黑色A035御國色素（股）公司製） (4)螢光染料(BLANKOPHOR NCC LIQUID Chemi (股）） (5 )接著劑 •苯乙烯·丁二烯系合成高分子乳膠 (6 )水溶性高分子Japan • Black pigment (SA black A035 Royal Gum Co., Ltd.) (4) Fluorescent dye (BLANKOPHOR NCC LIQUID Chemi (share)) (5) Adhesive • Styrene-butadiene synthetic polymer latex ( 6) Water soluble polymer
Coat •尿素磷酸酯化澱粉（日本食品化工（股）製Star 16) 實施例A1〜A6 〔紙料之調成〕 牛皮 率添 力增 A5及 調成含有濶葉樹牛皮紙漿（LBKP ) 65%、針葉植 紙漿（N B KP ) 3 5 %之紙漿漿液’以表1記載之調配比 加輕質碳酸鈣作爲塡料，相對於紙漿添加陽離子性細 強劑0.5%作爲內添加紙力劑而調成紙料。在實施例 A6中於紙料中添加顏料。 〔上漿沖壓液（表面處理液）之調製〕 ，得 量係 量係 以表1所示之調配，使各材料在常溫下混合攪 到固形分濃度8重量％之上漿沖壓液。又，色材之調 對於氧化澱粉1 〇〇重量份之値。此上漿沖壓液之塗 全部之實施例及比較例爲0.5 g/m2。 〔顔料塗佈液之調整〕 -28- 201120281 調配微粒輕重質碳酸鈣8 5份、微粒高嶺土之 Hydragloss ( CaMin公司製）15份作爲白色顏料’相對於 全白色顏料，調配單體組成主要爲苯乙烯及丁二烯之合成 高分子乳膠7份、作爲水溶性高分子之磷酸酯化澱粉4份， 進一步調配螢光染料4份，進而，以表1所示之調配在常溫 下混合攪拌色材，得到固形分濃度爲67重量％之塗佈液。 又’色材、接著劑、水溶性高分子的調配量係相對於白色 顏料100重量份之値。 〔印刷用紙之製造〕 使用上述之紙料，抄紙速度爲以1 1 00 m/分，以具有 雙鋼絲之抄紙機進行抄紙，使上述之上漿沖壓液（表面處 理液）以閘輥塗佈機塗佈量每單面成爲〇. 5 g/m2，於雙面 進行上漿沖壓而進行乾燥，得到基重4 1 . 8 g/m2之原紙。 繼而’使上述之塗佈液於原紙以刮刀塗佈機塗佈量每 單面成爲表1所示之値，以塗佈速度1 l〇〇m/分塗佈於雙面 而乾燥。 使抄紙、塗佈連續而以在線上實施，故塗佈速度、輾 壓速度亦爲1 100 m/分。進一步以高溫軟捏輾壓機以4捏合 、最高處理溫度200 °C、最高處理線壓2 5 0 kN/m之條件表 面處理。 如此做法，得到基重爲70 g/m2以下且於複數之層具有 色材之印刷用塗佈紙。 -29- 201120281 比較例1〜2 於塗佈液中只添加藍色·紫色顏料以外，其餘係與實 施例A 1同樣做法而製造印刷用紙。在本比較例所得到之印 刷用紙係基重爲7〇 g/m2以下，不透明度、紙的色相（，、 C )爲本發明規定之範圍外。 將實施例A及比較例之調配表示於表1中，印刷用紙之 性能表示於表2中。 -30- 201120281 比較例 CS CN Ο Ο 0.025 〇 1〇 〇 〇 0.003 0.001 寸· 0.39 卜 ο Ο τ-^ 〇 〇 in d 〇 1 0.003 0.001 0.39 < 24.4 ο ί—Η 〇 0.025 c5 0.002 0.011 0.001 ο οό 2.92 Ό 24.4 Ο r-^ 〇 〇 〇 0.002 0.011 0.001 ο ΟΟ 2.67 〇 Ο Ο 1—^ 〇 0.05 〇 〇 0.003 0.001 寸 0.89 習 U 〇 ο Ο Γ"Μ 〇 〇 in 〇 〇 0.003 0.001 寸· 〇\ m (N ο ο — 'Η 〇 r-H d 〇 0.002 0.011 0.001 ο ΟΟ 2.81 1 1 < ο ο 〇 0.025 vn 〇 0.002 0.011 0.001 ο ΟΟ 2.06 樹· JA 麗 喊a 路賅 1 ^ | ^ ^ m IV dml] it Η % 脈 蠢3 ¢1黟 •Ν U 丑·-Μ - 氧化澱粉(重量份） 黑色顏料(重量份） 紫色顏料(重量份） 塗佈量(g/m2，單面） 藍色顏料(重量份） 紫色顏料(重量份） 黑色顏料(重量份） 塗佈量(g/m2，單面） 色材合計(mg/m2) 上漿沖壓液 組成 塗佈液之色 材組成 000-X【(φ_®φ 险晅e^ih燧__蓝駆/φ}__4ι<Ι1?^ι€)驮竦$遯在龊ΝΙΦ 镔埕剡 $ΜΙχ(ρν§χίθ«)111ι埕劁W嫠荦劁实職+ δ__φ^画制ΝΦ 燦 affe鲦 Τ/Φ__4Ι<Π^Μ駿«]鍊球实魅^獅-ΝΦ 燦圍宏黟-HMPS®粼)_埕劁 N 燦 _*:黯 T+ 【(oflsylUI)llsl.-NM駿迎誠 MMMI^醐^-0-蕖蛏><掛蚺釦験^^廿窠陛><(2/9)_«蕖國〕=(6/§日)_4|啦^(实魃€]誠.实蹯疝醐)担切 。»4|但悄^担<1}^_釦砟^1|荦劁^騷，__免黟1,幽銮134|啦雄¥4|<0^£蹯«]铖.实魃^_)#卸 -31 - 201120281 CN撇 <N σ\ 寸 56.7 1.16 40.1 1190 〇\ 〇〇 0.37 -2.21 88.4 vq 84.7 31.5 白滯黃） 〇 X < 0.39 44.4 1680 1.48 0.31 -2.13 88.4 in — (N VO 1.17 52.4 1630 1.69 0.36 0.02 82.2 84.4 32.2 白滯黃） <3 X <] 0.39 51.3 1980 5ζ ψ < 0.40 0.00 82.4 r-H 實施例A6 58.1 1.14 51.0 2400 1.08 2.24 -7.40 88.1 o <〇 89.0 37.1 白(帶藍白） ◎ ◎ ◎ 2.92 50.5 2400 1.08 2.20 -7.30 88.0 o »ri 實施例A5 Ό od «ο 50.0 2380 1.15 1.97 -6.70 88.4 〇 88.5 36.8 白(帶藍白） ◎ ◎ ◎ 2.67 Uh 50.0 2310 1.10 1.96 -6.60 88.5 O 實施例A4 耷 (Ν yn 00 1.12 49.5 1890 m (S ON -3.74 88.8 <N 34.8 m 〇 〇 ◎ 0.89 Uh 50.2 2140 1.23 1.21 •3.71 88.7 cn tr； 實施例A3 57.9 1.14 51.2 2280 1.23 1.74 -5.08 88.8 88.0 35.0 白(帶藍白） 〇 〇 ◎ Os CO 49.9 2480 1.25 cs -5.01 88.5 實施例A2 57.6 m Ψ-^ 52.2 2400 1.05 2.34 -7.48 88.4 〇〇 89.9 36.9 白(帶藍白） ◎ ◎ ◎ 2.81 51.0 2340 1.06 2.28 -7.39 88.5 oo 實施例A1 58.0 1.16 51.8 2460 1.09 1.96 -6.54 88.8 88.7 36.9 白(帶藍白） ◎ ◎ ◎ 2.06 49.0 2390 1.08 1.95 -6.51 88.9 O »〇 (μηι) ί (g/cm3) g § (μηι) a*(UV-in) 1 g 螢光增白強度(FI) 對色 外觀之白度 印刷時之微透明 色紋 (mg/m2) 厚度 基重 密度 白紙光澤度(75。） 王硏式平滑度 PPS粗糙度 色相(C-2。） ISO白色度 ISO不透明度 灰分 色材合計(BL+VIO) -32- 201120281 從表2明顯可知，在本實施例得到之印刷用紙係一倂 具有高的白色度與高的不透明度，印刷時’特別平版印刷 時之微透光不明顯，而色彩再現寬廣，優異之印刷用塗佈 紙。 另外，不透明度、紙的色相（^ ' 1/ )爲本發明之範 圍外的比較例1、2係外觀之白度、印刷時之微透光、色紋 等之點，本發明之實施品差。 實施例B1〜B8 除只於塗佈液中只添加藍色•紫色顏料以外，其餘係 與實施例A 1 ~A6同樣做法而製造印刷用紙。在實施例b所 得到之印刷用紙係基重爲70 g/m2以下，且，只於1層具有 色材之印刷用塗佈紙。 將實施例B之調配、及所得到之印刷用紙的性能表示 於表3及表4中。於表3 ' 4中亦一併表示比較例之結果。 -33- 201120281 ° 〇 0.025 〇 5 〇 0.003 0.001 卜 0.39 JJ 1—^ 卜 〇 100 〇 〇 in Ο 0.003 0.001 寸 0.39 實施例Β 00 〇 〇 T—^ 〇 〇 2 0.002 0.008 0.001 〇\ 'SO 1.20 〇 〇 ▼-H 〇 〇 ο 0.002 0.008 0.001 卜 1.34 〇 § 〇 〇 2 0.002 0.008 0.001 卜 1.34 ° § 〇 〇 5 0.002 0.008 0.001 Γ ΟΟ 1.51 寸 〇 〇 〇 〇 5 0.002 0.008 0.001 卜 〇〇 1.51 VO 一 ° § 0.025 〇 ο 0.002 0.015 0.001 〇 〇6 2.36 ° 0.025 〇 ο 0.002 0.011 0.001 〇 1.81 一 ° 0.025 〇 5 0.002 0.008 0.001 〇 00 1.39 爲塡料之輕質碳酸鈣調配比率 (重量％，對紙漿） 原紙中之紫色顔料 (mg ,對紙漿kg) 氧化澱粉(重量份） 黑色顏料(重量份） 紫色顏料違量份） 塗佈量(g/m2，單面） 藍色顏料(重量份） 紫色顏料(重量份） 黑色顏料(重量份） 塗佈量(g/m2，單面） rO 1 B iitn <π ¢3 上漿沖壓 液組成 塗佈液之 色材組成 。«+|但拭^^<1!}盈_40砟^,荦劁^魅，_1!!«:齬叫，幽^幽-+-|如筚_-)-|<0^(-1?|^銶.才—^®^^ 0001χ【(φ__φ^画制燦埕剡实騷/^__+-|如^^騷€]铖鄯龚蹯^醐忉旮燦^剡实魅】>^日'01))(陋飘)¥埕剡^燦荦剡实魅+ 【φ}¥_φ^画制N-fr璨HS:麒叫委調_4|<10?^魅€]魏^^魅^醐^旮燦_殳黟叫><(6/2)@飘)_^剡^^齣免叙4〕+ 【(ω)δ 堤^^^¾¾^¾¾¾^^^^¾^^¾ -34- 201120281 比較例2 〇\ 56.7 1.16 40.1 1190 On oo i- 1 0.37 -2.21 88.4 vq — 84.7 31.5 白(帶黃） 〇 X <0 -, 0.39 Uh 44.4 1680 1.48 1 0.31 -2.13 ι- 88.4 — ΓΛ ir> (Ν Ό 一— 1.17 52.4 j !1630 On vq t—H 0.36 0.02 82.2 84.4 32.2 白(帶黃） < X < 1 0.39 | Ϊα tu, 51.3 1980 1 0.40 1 0.00 82.4 1—* 實施例8Β 彡 芬 51.2 48.2 1760 卜 2.02 -5.85 (N u-i 85.0 35.6 白滯藍白） 〇 < 〇 P-I 48.0 2100 <N rn l 1.95 1-5.69 ss o 實施例7Β ν〇 1.18 48.3 1720 cs rn 1—H 1 2.03 -5.90 丨 87.4 (N wS 86.4 35.5 白滯藍白） 〇 < 〇 寸 rn ϋ. 50.9 2550 i 2.01 -5.87 87.5 CN 實施例6Β *〇 60.4 1.14 50.6 2210 1.14 1 1.90 -5.70 89.5 (N wi 88.5 35.9 m m m ◎ ◎ 〇 η 52.0 2210 寸 i 1.81 -5.48 89.5 Os 實施例5Β (N ir> 60.5 1.16 52.5 2630 g 1.94 -5.85 89.5 (N vi 〇\ oo 38.1 白滯藍白） ◎ ◎ 〇 cc 2620 1.11 1.84 -5.60 89.5 〇 υ-ΐ 實施例4Β 等 56.5 1.23 53.4 1810 1.92 -5.67 86.8 (N 1 I 86.3 35.5 白(帶藍白） 〇 < 〇 P-. 51.7 2570 S Ο) -5.62 〇 <n 實施例3Β 耷 (N ΙΛ> 57.8 52.0 2350 u-) 1.96 •6.54 88.8 ΙΟ 89.2 36.9 白滯藍白） ◎ ◎ 〇 "t Ί I 厶·_>υ j 49.0 2200 1.12 LL95_ -6.51 88, o 匡 耷 58.2 1.14 52.3 2300 1.14 1 1.91 -6.16 89.2 (N «Ο 88.7 36.9 白(帶藍白） ◎ ◎ 〇 I.S! ! Ph 47.5 2340 1.11 ι 1.90 I -6.15 89.2 u-i 2 υ-ι 00 1.14 52.3 2360 ι 1.86 -5.73 89.6 88.3 I 36.9 白(帶藍白） ◎ ◎ 〇 σ> Γ<) 闺 Κ 47.5 2360 1.11 00 -5.62 89.6 in 厚度 （μηι) 基重 （g/m2) 密度 （g/cm3) 白紙光澤度(75°) (%) 王硏式平滑度 （秒） PPS粗縫度 （μηι) 色相(C-2。） a*(UV-in) i ISO白色度 （％) 螢光增白強度(FI) ISO不透明度 （％) 灰分 （％) 對色 外觀之白度 印刷時之微透明 色紋 丨樹^lt(BLfVIO) (mg/m2) -35- 201120281 從表3明顯可知’在本實施例得到之印刷用紙係一倂 具有高的白色度與高的不透明度，印刷時，特別平版印刷 時之微透光不明顯，而色彩再現寬廣’爲優異之印刷用塗 佈紙。 另外，不透明度、紙的色相（、1/ )爲本發明之範 圍外的比較例1、2係外觀之白度、印刷時之微透光、色紋 等之點，本發明之實施品差。 再者，從實施例A與實施例B之比較，明顯可知形成於 原紙之雙面的塗佈層 2層以上含有的實施例A之印刷用紙 係與只於1層含有顏料之實施例B的印刷用紙比較，色紋特 別少。 實施例C 1 〔紙料之調成〕 調成含有濶葉樹牛皮紙漿（LBKP ) 90%、針葉樹牛皮 紙漿（ΝΒΚΡ ) 10%之紙漿漿液，添加15%輕質碳酸鈣作爲 填料，相對於紙漿添加陽離子性紙力增強劑0.5 %作爲內添 加紙力劑而調成紙料。 〔顔料塗佈（底塗佈）液之調成〕 使微粒輕質碳酸鈣100份、氧化澱粉21份、苯乙稀-丁 二烯系合成高分子乳膠3.5份、紫顏料 〇.〇〇4份在常溫下 混合攪拌，得到固形分濃度爲60重量％之底塗佈液。 -36- 201120281 〔顏料塗佈（頂塗佈）液之調成〕 調配微粒輕質碳酸鈣54份、微粒高嶺土之Hydragl0ss (CaMin公司製）46份作爲顏料，相對於此等之顏料的 合計’單體組成主要調配苯乙烯及丁二烯之合成高分子乳 膠1 〇份、作爲水溶性高分子之磷酸酯化澱粉2.3份，進一 步調配螢光染料4份、紫色顏料 0.01份、藍色顏料 0.003 份，使全部之材料在常溫下混合攪拌，得到固形分濃度爲 6 7重量％之塗佈液。又，色材、接著劑、水溶性高分子之 調配量係相對於白色顏料 1 00重量份之値。 〔印刷用紙之製造〕 使用上述之紙料，抄紙速度爲1 000 m /分，以具有雙 鋼絲之抄紙機進行抄紙，使上述之底塗佈液（表面處理液 )以閘輥塗佈機塗佈量每單面成爲4.0 g/m2，於雙面進行 底塗佈而進行乾燥，得到基重5 2.1 g/m2之原紙。 繼而，使上述之塗佈液於原紙以刮刀塗佈機塗佈量每 單面9.5 g/m2，以塗佈速度1 000m/分塗佈於雙面而乾燥。 使抄紙、塗佈連續而以在線上實施，故塗佈速度、輾 壓速度亦爲1〇〇〇 m/分。進一步以高溫軟捏輾壓機以4捏合 、最高處理溫度200 t、最高處理線壓250 kN/m之條件進 行表面處理。如此做法而得到基重高於7 〇 g/m2之印刷用塗 佈紙。 〔實施例C2〕 -37- 201120281 使用上述之紙料，抄紙速度爲1000 m /分，以具有雙 鋼絲之抄紙機進行抄紙，使上述之底塗佈液（表面處理液 )以閘輥塗佈機塗佈量每單面成爲4.5 g/m2，於雙面進行 底塗佈而進行乾燥，得到基重54.6 g/m2之原紙。 繼而，使上述之塗佈液於原紙以刮刀塗佈機塗佈量每 單面10.0 g/m2，以塗佈速度1 ΟΟΟιη/分塗佈於雙面而乾燥》 以高溫軟捏輾壓機之表面處理係與實施例C 1同樣做法而得 到印刷用塗佈紙。 實施例C3 調成含有濶葉樹牛皮紙漿（LBKP ) 8 5%、針葉樹牛皮 紙漿（NBKP ) 15%之紙漿漿液作爲原料紙漿，以抄紙速度 爲1 00 0 m /分，以具有雙鋼絲之抄紙機進行抄紙，使上述 之底塗佈液（表面處理液）以閘輥塗佈機塗佈量每單面成 爲4.0 g/m2，於雙面進行底塗佈而進行乾燥，得到基重 56.6 g/m2之原紙。 顏料塗佈液係調配微粒輕重質碳酸鈣47份、微粒高嶺 土之Hydragloss ( CaMin公司製）5 3份作爲顏料，相對 於此等之顏料的合計，單體組成主要調配苯乙烯及丁二烯 之合成高分子乳膠10.5份、作爲水溶性高分子之磷酸酯化 澱粉2.3份，進一步調配螢光染料4份、紫色顏料 0.009份 、藍色顔料 0.002份，使全部之材料在常溫下混合攪拌， 固形分濃度爲67重量％之塗佈液，於原紙以刮刀塗佈機塗 佈量每單面爲10.5 g/m2，以塗佈速度1〇〇〇 m/分塗佈於雙 -38- 201120281 面而乾燥。 又’以高溫軟捏輾壓機之表面處理係與實施例C 1同樣 做法而得到印刷用塗佈紙。 實施例C4 除於顏料塗佈（頂塗佈）液中調配微粒輕質碳酸鈣3 0 份、Hydragloss (； C aM i η公司製）7 〇份，取代微粒輕質 碳酸耗54份、微粒高嶺土之Hydragi〇ss ( CaMin公司製 )4 6份作爲顏料以外，其餘係與實施例c〗同樣地實施，得 到印刷用塗佈紙。 比較例3 除於顏料塗佈（底塗佈）液及顔料塗佈（頂塗佈）液 不調配紫色及藍色顔料以外’其餘係與實施例c丨同樣地實 施，得到印刷用塗佈紙。 比較例4 除於顏料塗佈（底塗佈）液及顏料塗佈（頂塗佈）液 不調配紫色及藍色顏料以外’其餘係與實施例c 3同樣地實 施’得到印刷用塗佈紙。 將貫施例C及比較例3〜4中之調配、以及所得到之印刷 用紙之性能表示於表5及6中。 -39- 201120281 比較例 寸 〇 〇 — 〇 〇 10.5 0.00 CO 〇 P 〇 〇 ON 0.00 U 寸 0.004 Ρ 0.003 0.01 IT) 〇\ 2.38 m 0.004 〇 0.002 0.009 10.5 2.23 實施1 CN 0.004 in 0.003 0.01 10.0 2.52 0.004 〇 寸’ 0.003 0.01 Os 2.38 紫色顏料(重量份） 〔g/m2，單面） 藍色顏料(重量份） 紫色顏料(重量份） 塗佈量(g/m2，單面） rO 1 旦 life <Π 底塗佈液之色材組成 塗佈量< 頂塗佈液之色材組成 οοοχ【(φ}__φ^画啪·Ν·&·燦埕剡 11/^__-+-|<0^实魅^鱿隸|£魅€]醐^4:.燦埂剡11><(^^)(晅飘)_埕剡^璨^劍11+ 【φ__φ^画啪-N-fr燦^劍^/^__4|如^^魅^魏^实赌^^^€-擦埕剡钽><(^日/§)(10默)_运剡^擦坦劁_1= (st)_+-l<n-N%i载 if®— 。滅+IM^H-埕-一!}§_仞^_埕劍实魅4-§如筚_+|<0忉£魅^踩.实駿^^}#^ -40- 201120281 寸 53/47 v〇 77.6 1.23 4750 0.80 -0.93 -0.13 84.8 ON u-i 1- 89.3 39.7 白(帶黃） X <] 0.00 Μ 00 VO 4170 0.82 -0.94 -0.09 1 ! 85.5 卜 cn 妄: 窆 46/54 00 71.1 1.23 ! o 4520 0.85 -0.35 卜 in t 89.0 00 寸· 89.0 41.1 白滯黃） < <] 〇 0.00 Λ3 U, δ 4480 0.86 -0.35 -1.51 1 87.3 — 實施例C4 爹 70/30 00 71.1 m (N JO 4700 0.65 0.88 -4.25 86.8 00 92.9 1 ! 41.1 白(純白〜帶藍白） ◎〜〇 ◎ 〇 -1 2.38 Uh CN 4660 0.66 0.88 -4.19 寸· G I 53/47 I m VO 77.6 1.23 ΓΛ 4750 0.80 0.42 -3.46 84.5 On 92.2 39.7 白(純白） 〇 〇 <3 1 2.23 瘥 K 00 4170 0.82 0.41 -3.42 85.2 卜 υ-i I 46/54 fN VO 74.6 1.20 i (N 2900 S cs -5.21 87.8 Ο) — 93.0 1 39.5 白(帶藍白） ◎ ◎ 〇 Ί 2.52 | Ιϋ PtH oo un 2830 ο VO -4.99 88.1 — ψ 耷 I 46/54 00 <r> 71.1 1.23 ! o 4520 0.85 1.00 -4.90 88.7 00 — 1 91.9 41.1 白(帶藍白） ◎ ◎ 〇 1 2.38 | 辑 Λ Uh 5S 4480 0.86 o -4.84 87.0 寸 高嶺土順酸鈣 厚度 （μπι) 基重 （g/m2) 密度 （g/cm3) 白紙光澤度(75°) (%) 王硏式平滑度 （秒） PPS粗糖度 （μιη) 色相(C-2。） a*(UV-in) D ISO白色度 （％) 螢光增白強度(FI) ISO不透明度 （％) 灰分 （％) 對色 外觀之白度 印刷時之微透明 色紋 | 色林合 SKBL+VIO) (mg/m2) | s -41 - 201120281 從表6明顯可知’在本實施例得到之印刷用紙係一倂 具有高的白色度與高的不透明度，印刷時，特別平版印刷 時之微透光不明顯，而色彩再現寬廣，爲優異之印刷用塗 佈紙。另外，不含有藍色、紫色顏料之比較例係就外觀之 白度 '印刷時之微透光、色紋等之點，本發明之實施品差 【圖式簡單說明】 圖1係L*a*b*色相系中之色材添加後的色相變化。 -42-Coat • Urea Phosphate Starch (Star 16 manufactured by Nippon Food & Chemical Co., Ltd.) Examples A1 to A6 [Forming of Paper Materials] The leather ratio is increased by A5 and adjusted to contain eucalyptus kraft pulp (LBKP) 65% , Coniferous pulp (NB KP) 3 5 % pulp slurry 'with the formulation ratio shown in Table 1 plus light calcium carbonate as a dip, adding 0.5% of the cationic fine agent to the pulp as an internal paper strength agent Adjusted to paper stock. In Example A6, a pigment was added to the stock. [Preparation of sizing stamping liquid (surface treatment liquid)], the amount of the system was adjusted as shown in Table 1, and each material was mixed at a normal temperature to a slurry concentration of 8 wt% on a solid content concentration. In addition, the adjustment of the color material is for 1 part by weight of the oxidized starch. The coating of the sizing stamping solution was 0.5 g/m2 in all of the examples and comparative examples. [Adjustment of Pigment Coating Liquid] -28- 201120281 Formulated with 8 5 parts of particulate light heavy calcium carbonate and 15 parts of granagloss (manufactured by CaMin Co., Ltd.) of particulate kaolin as a white pigment'. Compared with all white pigments, the monomer composition is mainly benzene. 7 parts of a synthetic polymer latex of ethylene and butadiene, 4 parts of a phosphated starch as a water-soluble polymer, and further 4 parts of a fluorescent dye, and further mixed with a stirring color material at normal temperature as shown in Table 1. A coating liquid having a solid content concentration of 67% by weight was obtained. Further, the blending amount of the color material, the adhesive, and the water-soluble polymer is 100 parts by weight based on 100 parts by weight of the white pigment. [Manufacturing of printing paper] Using the paper stock described above, the papermaking speed was 1 00 m/min, and papermaking was carried out by a paper machine having a double steel wire, and the above-mentioned upper sizing liquid (surface treatment liquid) was coated with a brake roller. The coating amount per unit was 〇. 5 g/m2, and sizing was performed on both sides and dried to obtain a base paper having a basis weight of 41.8 g/m2. Then, the above-mentioned coating liquid was applied to the base paper in a doctor blade coating amount as shown in Table 1, and coated on both sides at a coating speed of 1 l〇〇m/min. The papermaking and coating were carried out continuously on the line, so the coating speed and the rolling speed were also 1 100 m/min. Further, it was treated with a high-temperature soft kneading press at a condition of 4 kneading, a maximum processing temperature of 200 ° C, and a maximum processing line pressure of 2,500 kN/m. Thus, a coated printing paper having a basis weight of 70 g/m2 or less and having a color material in a plurality of layers was obtained. -29-201120281 Comparative Example 1 to 2 A printing paper was produced in the same manner as in Example A1 except that only the blue/purple pigment was added to the coating liquid. The basis weight of the printing paper obtained in this comparative example was 7 〇 g/m 2 or less, and the opacity and the hue (, C ) of the paper were outside the range prescribed by the present invention. The formulation of Example A and Comparative Example is shown in Table 1, and the properties of the printing paper are shown in Table 2. -30- 201120281 Comparative Example CS CN Ο Ο 0.025 〇1〇〇〇0.003 0.001 inch·0.39 卜οΟ τ-^ 〇〇in d 〇1 0.003 0.001 0.39 < 24.4 ο ί—Η 〇0.025 c5 0.002 0.011 0.001 ο Όό 2.92 Ό 24.4 Ο r-^ 〇〇〇0.002 0.011 0.001 ο ΟΟ 2.67 〇Ο Ο 1—^ 〇0.05 〇〇0.003 0.001 inch 0.89 UU 〇ο Ο Γ"Μ 〇〇in 〇〇0.003 0.001 inch· 〇\ m (N ο ο — 'Η 〇rH d 〇0.002 0.011 0.001 ο ΟΟ 2.81 1 1 < ο ο 〇0.025 vn 〇0.002 0.011 0.001 ο ΟΟ 2.06 Tree · JA 丽叫 a路赅 1 ^ | ^ ^ m IV dml ] it Η % 脉脉3 ¢1黟•Ν U ugly--Μ - oxidized starch (parts by weight) Black pigment (parts by weight) Purple pigment (parts by weight) Coating amount (g/m2, one-sided) Blue pigment (parts by weight) Purple pigment (parts by weight) Black pigment (parts by weight) Coating amount (g/m2, single-sided) Total color material (mg/m2) Sizing composition of coating liquid for sizing stamping liquid composition 000-X [(φ_®φ 晅e^ih燧__蓝駆/φ}__4ι<Ι1?^ι€)驮竦$遁在龊ΝΙΦ 镔埕剡$ΜΙχ(ρ §χίθ«)111ι埕劁W嫠荦劁实职+ δ__φ^画制ΝΦ 灿affe鲦Τ/Φ__4Ι<Π^Μ骏«]Chainball enchantment^lion-ΝΦ 灿围宏黟-HMPS®粼)_埕劁N 灿**:黯T+ [(oflsylUI)llsl.-NM 骏迎诚MMMI^醐^-0-蕖蛏><hanging buckle 験^^廿窠陛><(2/9) _«蕖国]=(6/§日)_4|啦^(实魃€]诚.实蹯疝醐). »4|But the ^^^^^砟砟11荦劁荦劁骚, __免黟1, 幽銮134|啦雄¥4|<0^£蹯«]铖. ^_)#Unloading-31 - 201120281 CN撇<N σ\ inch 56.7 1.16 40.1 1190 〇\ 〇〇0.37 -2.21 88.4 vq 84.7 31.5 white stagnation yellow 〇X < 0.39 44.4 1680 1.48 0.31 -2.13 88.4 in — (N VO 1.17 52.4 1630 1.69 0.36 0.02 82.2 84.4 32.2 White stagnation yellow) <3 X <] 0.39 51.3 1980 5ζ ψ < 0.40 0.00 82.4 rH Example A6 58.1 1.14 51.0 2400 1.08 2.24 -7.40 88.1 o <〇 89.0 37.1 White (with blue and white) ◎ ◎ ◎ 2.92 50.5 2400 1.08 2.20 -7.30 88.0 o »ri Example A5 Ό od «ο 50.0 2380 1.15 1.97 -6.70 88.4 〇88.5 36.8 White (with blue and white) ◎ ◎ ◎ 2.67 Uh 50.0 2310 1.10 1.96 -6.60 88.5 O Example A4 耷(Ν yn 00 1.12 49.5 1890 m (S ON -3.74 88.8 < N 34.8 m 〇〇 ◎ 0.89 Uh 50.2 2140 1.23 1.21 • 3.71 88.7 cn tr; Example A3 57.9 1.14 51.2 2280 1.23 1.74 -5.08 88.8 88.0 35.0 White (with blue and white) 〇〇◎ Os CO 49.9 2480 1.25 cs -5.01 88.5 Example A2 57.6 m Ψ-^ 5 2.2 2400 1.05 2.34 -7.48 88.4 〇〇89.9 36.9 White (with blue and white) ◎ ◎ ◎ 2.81 51.0 2340 1.06 2.28 -7.39 88.5 oo Example A1 58.0 1.16 51.8 2460 1.09 1.96 -6.54 88.8 88.7 36.9 White (with blue and white) ◎ ◎ ◎ 2.06 49.0 2390 1.08 1.95 -6.51 88.9 O »〇(μηι) ί (g/cm3) g § (μηι) a*(UV-in) 1 g Fluorescent whitening intensity (FI) Whiteness of color appearance Micro-transparent color lines (mg/m2) during printing. Thickness basis density white paper gloss (75. ) Wang Wei type smoothness PPS roughness hue (C-2.) ISO whiteness ISO opacity gray color material total (BL+VIO) -32- 201120281 It is apparent from Table 2 that the printing paper obtained in this embodiment is One has a high whiteness and a high opacity, and the micro-light transmission during special lithographic printing is not obvious, and the color reproduction is broad, and the coated paper for printing is excellent. Further, the opacity, the hue of the paper (^ ' 1 / ) is the whiteness of the appearance of the comparative examples 1 and 2 outside the scope of the invention, the slight light transmittance at the time of printing, the color tone, and the like, and the embodiment of the present invention difference. In the examples B1 to B8, printing paper was produced in the same manner as in the examples A1 to A6 except that only the blue/purple pigment was added to the coating liquid. The printing paper obtained in Example b had a basis weight of 70 g/m2 or less, and only one layer of coated paper having a color material for printing. The blending of Example B and the properties of the obtained printing paper are shown in Tables 3 and 4. The results of the comparative examples are also shown in Table 3 '4. -33- 201120281 ° 〇0.025 〇5 〇0.003 0.001 卜 0.39 JJ 1—^ 〇 100 〇〇 in Ο 0.003 0.001 inch 0.39 Example 00 00 〇〇T—^ 〇〇2 0.002 0.008 0.001 〇\ 'SO 1.20 〇 〇▼-H 〇〇ο 0.002 0.008 0.001 卜 1.34 〇§ 〇〇2 0.002 0.008 0.001 卜 1.34 ° § 〇〇5 0.002 0.008 0.001 ΟΟ ΟΟ 1.51 inch 〇〇〇〇 5 0.002 0.008 0.001 〇〇 1.51 VO 1° § 0.025 〇ο 0.002 0.015 0.001 〇〇6 2.36 ° 0.025 〇ο 0.002 0.011 0.001 〇1.81 1° 0.025 〇5 0.002 0.008 0.001 〇00 1.39 Lightweight calcium carbonate blending ratio (weight%, for pulp) in the base paper Purple pigment (mg, for pulp kg) Oxidized starch (parts by weight) Black pigment (parts by weight) Purple pigment in part) Coating amount (g/m2, one-sided) Blue pigment (parts by weight) Purple pigment (parts by weight) ) Black pigment (parts by weight) Coating amount (g/m2, one-sided) rO 1 B iitn <π ¢3 The composition of the coloring material of the coating liquid composed of the sizing stamping liquid. «+|But ^^<1!}Ying_40砟^,荦劁^魅,_1!!«:龉叫,幽^幽-+-|如如_-)-|<0^( -1?|^銶.才—^®^^ 0001χ[(φ__φ^画制灿埕剡实骚/^__+-|如^^骚€]铖鄯龚蹯^醐忉旮灿^剡实魅】>^日'01))(陋飘)¥埕剡^灿荦剡实魅+ [φ}¥_φ^画制N-fr璨HS: 麒叫委调_4|<10? €]魏^^魅^醐^旮灿_殳黟叫><(6/2)@飘)_^剡^^出免叙4〕+ [(ω)δ堤^^^3⁄43⁄4^3⁄43⁄43⁄4 ^^^^3⁄4^^3⁄4 -34- 201120281 Comparative Example 2 〇\ 56.7 1.16 40.1 1190 On oo i- 1 0.37 -2.21 88.4 vq — 84.7 31.5 White (with yellow) 〇X <0 -, 0.39 Uh 44.4 1680 1.48 1 0.31 -2.13 ι- 88.4 — ΓΛ ir> (Ν Ό 1— 1.17 52.4 j !1630 On vq t—H 0.36 0.02 82.2 84.4 32.2 White (with yellow) < X < 1 0.39 | Ϊα tu, 51.3 1980 1 0.40 1 0.00 82.4 1—* Example 8Β Suifen 51.2 48.2 1760 Bu 2.02 -5.85 (N ui 85.0 35.6 white stagnation blue and white) 〇< 〇PI 48.0 2100 <N rn l 1.95 1-5.69 ss o Example 7Β ν〇1.18 48.3 1720 cs rn 1—H 1 2.03 -5.90 丨87.4 (N wS 86.4 35.5 white stagnation blue and white 5〇 2550 i 2.01 -5.87 87.5 CN Example 6Β *〇60.4 1.14 50.6 2210 1.14 1 1.90 -5.70 89.5 (N wi 88.5 35.9 mmm ◎ ◎ 〇η 52.0 2210 inch i 1.81 -5.48 89.5 Os Example 5Β (N ir > 60.5 1.16 52.5 2630 g 1.94 -5.85 89.5 (N vi 〇\ oo 38.1 white stagnation blue white) ◎ ◎ 〇cc 2620 1.11 1.84 -5.60 89.5 〇υ-ΐ Example 4Β etc. 56.5 1.23 53.4 1810 1.92 -5.67 86.8 (N 1 I 86.3 35.5 white (with blue and white) 〇 < 〇P-. 51.7 2570 S Ο) -5.62 〇<n Example 3Β 耷(N ΙΛ> 57.8 52.0 2350 u-) 1.96 • 6.54 88.8 ΙΟ 89.2 36.9 White stagnation blue and white) ◎ ◎ 〇"t Ί I 厶·_>υ j 49.0 2200 1.12 LL95_ -6.51 88, o 匡耷58.2 1.14 52.3 2300 1.14 1 1.91 -6.16 89.2 (N «Ο 88.7 36.9 White (with blue and white) ◎ ◎ 〇IS! ! Ph 47.5 2340 1.11 ι 1.90 I -6.15 89.2 ui 2 υ-ι 00 1.14 52.3 2360 ι 1.86 -5.73 89.6 88.3 I 36.9 White (with blue and white) ◎ ◎ 〇 σ>Γ<) 闺Κ 47.5 2360 1.11 00 -5.62 89.6 in thickness (μηι) basis weight (g/m2) Density (g/cm3) White paper gloss (75°) (%) Wang Hao smoothness (seconds) PPS rough seam (μηι) Hue (C-2. a*(UV-in) i ISO whiteness (%) Fluorescent whitening intensity (FI) ISO opacity (%) Ash (%) White color for color appearance Micro-transparent color eucalyptus for printing (BLfVIO) (mg/m2) -35- 201120281 It is apparent from Table 3 that the printing paper obtained in the present embodiment has a high whiteness and a high opacity, and is particularly lithographically printed during printing. The light is not obvious, and the color reproduction is broad' is an excellent coated paper for printing. Further, the opacity, the hue of the paper (, 1/) are the whiteness of the appearance of the comparative examples 1 and 2 outside the range of the present invention, the slight light transmission during printing, the color tone, and the like, and the implementation of the present invention is poor. . Further, from the comparison between Example A and Example B, it is apparent that the printing paper of Example A contained in the coating layer of two or more layers formed on both sides of the base paper and the Example B containing only one layer of the pigment Compared with printing paper, the color pattern is particularly small. Example C 1 [Mining of paper stock] A pulp slurry containing 90% of eucalyptus kraft pulp (LBKP) and 10% of conifer kraft pulp (ΝΒΚΡ) was added, and 15% of light calcium carbonate was added as a filler, relative to the pulp. 0.5% of a cationic paper strength enhancer was added as an internal paper strength agent to prepare a paper stock. [Adjustment of pigment coating (bottom coating) liquid] 100 parts of fine calcium carbonate, 21 parts of oxidized starch, 3.5 parts of styrene-butadiene synthetic polymer latex, and purple pigment 〇.〇〇4 The mixture was stirred and stirred at normal temperature to obtain a primer coating liquid having a solid content concentration of 60% by weight. -36- 201120281 [Adjustment of pigment coating (top coating) liquid] 54 parts of particulate light calcium carbonate and 46 parts of Hydragl0ss (manufactured by CaMin Co., Ltd.) of particulate kaolin are used as pigments, and the total of these pigments is ' The monomer composition is mainly composed of 1 part of synthetic polymer latex of styrene and butadiene, 2.3 parts of phosphate esterified starch as water-soluble polymer, 4 parts of fluorescent dye, 0.01 part of purple pigment, and 0.003 of blue pigment. The whole was mixed and stirred at normal temperature to obtain a coating liquid having a solid concentration of 67% by weight. Further, the blending amount of the color material, the adhesive, and the water-soluble polymer is 100 parts by weight based on 100 parts by weight of the white pigment. [Manufacture of printing paper] Using the above-mentioned paper stock, the papermaking speed was 1 000 m / min, and papermaking was performed by a paper machine having a double steel wire, and the above-mentioned bottom coating liquid (surface treatment liquid) was coated with a brake roll coater. The amount of cloth was 4.0 g/m2 per one side, and the bottom coating was applied on both sides to dry to obtain a base paper having a basis weight of 5 2.1 g/m2. Then, the coating liquid described above was applied to a base paper at a coating speed of a blade coater of 9.5 g/m2 per one side, and coated on both sides at a coating speed of 1 000 m/min to be dried. The papermaking and coating were carried out continuously on the line, so the coating speed and the rolling speed were also 1 〇〇〇 m/min. Further, the surface treatment was carried out under the conditions of 4 kneading, a maximum treatment temperature of 200 t, and a maximum treatment line pressure of 250 kN/m by a high-temperature soft kneading press. In this way, a printing paper having a basis weight of more than 7 〇 g/m 2 is obtained. [Example C2] -37-201120281 Using the above-mentioned paper stock, the papermaking speed was 1000 m/min, and papermaking was carried out with a paper machine having a double steel wire, and the above-mentioned bottom coating liquid (surface treatment liquid) was coated with a brake roller. The coating amount of the machine was 4.5 g/m2 per one side, and the bottom coating was carried out on both sides to dry to obtain a base paper having a basis weight of 54.6 g/m2. Then, the coating liquid described above was applied to the base paper at a coating speed of 10.0 g/m 2 per one side of the blade coater at a coating speed of 1 ΟΟΟ ηη / min, and dried on both sides. The surface treatment was carried out in the same manner as in Example C1 to obtain a coated paper for printing. Example C3 A pulp slurry containing 85% of eucalyptus kraft pulp (LBKP) and 15% of conifer kraft pulp (NBKP) was prepared as a raw material pulp at a papermaking speed of 100 00 m / min to produce paper with double steel wire. The paper was subjected to papermaking, and the above-mentioned primer coating liquid (surface treatment liquid) was applied at a gravure coater of 4.0 g/m 2 per side, and was subjected to undercoating on both sides to be dried to obtain a basis weight of 56.6 g. /m2 of the original paper. In the pigment coating liquid, 47 parts of light weight heavy calcium carbonate and 53 parts of granagloss (manufactured by CaMin Co., Ltd.) of fine particle kaolin are blended as a pigment, and the monomer composition mainly blends styrene and butadiene with respect to the total of these pigments. 10.5 parts of synthetic polymer latex, 2.3 parts of phosphate esterified starch as water-soluble polymer, further blending 4 parts of fluorescent dye, 0.009 parts of purple pigment, and 0.002 parts of blue pigment, so that all materials are mixed and stirred at room temperature, solid form The coating liquid having a concentration of 67% by weight was applied to the base paper at a coating speed of 10.5 g/m2 per one side of the base coater at a coating speed of 1 〇〇〇m/min, and coated on the double-38-201120281 surface. And dry. Further, the surface treatment of the high-temperature soft kneading press was carried out in the same manner as in Example C1 to obtain a coated paper for printing. Example C4 In addition to the pigment coating (top coating) solution, 30 parts of light calcium carbonate, Hydragloss (manufactured by C aM i η), 7 parts, and 54 parts of light carbonic acid, particulate kaolin In the same manner as in Example c, 46 parts of Hydragi〇ss (manufactured by CaMin Co., Ltd.) was used as a pigment to obtain a coated paper for printing. Comparative Example 3 The same procedure as in Example c was carried out except that the pigment coating (primer coating) liquid and the pigment coating (top coating) liquid were not blended with the purple and blue pigments, and a coated printing paper was obtained. . Comparative Example 4 In the same manner as in Example c 3 except that the pigment coating (primer coating) liquid and the pigment coating (top coating) liquid were not blended with the purple and blue pigments, the coating paper for printing was obtained. . The blending of Example C and Comparative Examples 3 to 4 and the properties of the obtained printing paper are shown in Tables 5 and 6. -39- 201120281 Comparative example inch 〇〇 - 〇〇10.5 0.00 CO 〇P 〇〇ON 0.00 U inch 0.004 Ρ 0.003 0.01 IT) 〇\ 2.38 m 0.004 〇0.002 0.009 10.5 2.23 Implementation 1 CN 0.004 in 0.003 0.01 10.0 2.52 0.004 〇 Inch ' 0.003 0.01 Os 2.38 Purple pigment (parts by weight) [g/m2, single-sided) Blue pigment (parts by weight) Purple pigment (parts by weight) Coating amount (g/m2, single-sided) rO 1 Life <色 The coating amount of the coloring material of the bottom coating liquid < The color material composition of the top coating liquid οοοχ [(φ}__φ^画啪·Ν·&·灿埕剡11/^__-+-|<0^实魅^鱿隶|£魅€]醐^4:.灿埂剡11><(^^)(晅飘)_埕剡^璨^剑11+[φ__φ^画啪-N-fr灿^剑^/^__4|如^^魅^魏^实赌^^^€-擦埕剡钽><(^日/§)(10默)_运剡^擦坦劁_1=(st)_+-l<nN%i with if®-. Destroy+IM^H-埕-一!}§_仞^_埕剑实魅4-§如筚_+|<0忉£魅^ step. Shi Jun ^^}#^ -40- 201120281 inch 53/47 v〇77.6 1.23 4750 0.80 -0.93 -0.13 84.8 ON ui 1- 89.3 39.7 white (with yellow) X <] 0.00 Μ 00 VO 4170 0.82 -0.94 -0.09 1 ! 85.5 Bu Cn 妄: 窆46/54 00 71.1 1.23 ! o 4520 0.85 -0.35 卜 in t 89.0 00 inch · 89.0 41.1 white yawn yellow) <<] 〇0.00 Λ3 U, δ 4480 0.86 -0.35 -1.51 1 87.3 - Implementation Example C4 爹70/30 00 71.1 m (N JO 4700 0.65 0.88 -4.25 86.8 00 92.9 1 ! 41.1 White (pure white ~ with blue and white) ◎~〇 ◎ 〇-1 2.38 Uh CN 4660 0.66 0.88 -4.19 inch · GI 53 /47 I m VO 77.6 1.23 ΓΛ 4750 0.80 0.42 -3.46 84.5 On 92.2 39.7 White (pure white) 〇〇<3 1 2.23 瘥K 00 4170 0.82 0.41 -3.42 85.2 υ-i I 46/54 fN VO 74.6 1.20 i (N 2900 S cs -5.21 87.8 Ο) — 93.0 1 39.5 White (with blue and white) ◎ ◎ 〇Ί 2.52 | Ιϋ PtH oo un 2830 ο VO -4.99 88.1 — ψ 耷 I 46/54 00 <r> 71.1 1.23 o 4520 0.85 1.00 -4.90 88.7 00 — 1 91.9 41.1 White (with blue and white) ◎ ◎ 〇1 2.38 | Collection h Uh 5S 4480 0.86 o -4.84 87.0 inch kaolin calcium silicate thickness (μπι) basis weight (g/m2 ) Density (g/cm3) White paper gloss (75°) (%) Wang Hao type smoothness (seconds) PPS coarse sugar (μιη) Hue (C-2. ) a*(UV-in) D ISO whiteness (%) Fluorescent whitening intensity (FI) ISO opacity (%) Ash (%) White color for color appearance Printed with micro-transparent color pattern | SKBL+VIO) (mg/m2) | s -41 - 201120281 It is apparent from Table 6 that the printing paper obtained in this embodiment has a high whiteness and a high opacity, and is particularly lithographic when printed. The micro-light transmission is not obvious, and the color reproduction is wide, which is an excellent coated paper for printing. In addition, the comparative example which does not contain blue and purple pigments is the whiteness of the appearance, the micro-transmission, the color-grain, etc. at the time of printing, and the implementation of this invention is [the brief description of a figure ] FIG. *b* The hue change after the addition of the color material in the hue system. -42-