201132826 六、發明說明： 【發明所屬之技術領域】 ^ 本發明係關於一種捲包作為附濾嘴（fi Iter)香菸之濾 Λ 嘴部之最外層之低坪量（basis weight)濾嘴包接紙（tip paper)及具備此濾嘴包接紙之附濾嘴香於。 【先前技術】 附濾嘴香菸係將香菸桿與濾嘴對接，且將濾嘴外周面 整體及對接部附近之香菸桿外周面部分以濾嘴包接紙捲包 而形成一體化。: 前述濾嘴包接紙從具有屬於捲包時之要求品質的拉伸 強度、捲包時、屬於捲包物之外觀要求品質的剛度、碳粉 附著隱蔽性、設計上所要求之不透明度及擔保濾嘴附近適 當燃燒之難燃性等功能特性，並且在製造面、搬運時的輕 量化等觀點，以低坪量為佳。 然而，在日本專利第2875184號中揭示一種用於含有 氧化鈦、高嶺土（kaolin)作為填料之濾嘴包接紙之難燃性 原紙之發明。然而，此發明係關於填料之改良，原紙則如 實施例所記載，停留在一般的坪量（37gsm)。 在曰本特開平10-219599號公報中，揭示一種含有特 定粒子尺寸之碳酸鈣，以降低切斷時之切斷器具（刀刃等） .磨損之濾嘴包接紙。在此公報之申請專利範圍中係記載包 接紙之坪量為32gsm。然而，前述公報之發明係以將二氧 化鈦置換為更廉價者為目的，且由於使用特定粒子尺寸之 碳酸鈣作為該替代材料，因此犧牲了作為濾嘴包接紙所要t 3 321928 201132826 求之難燃性。 因此，前述所有專利文獻均完全未記載設計濾嘴包接 紙時，既能滿足拉伸強度、剛度、不透明度及難燃性之濾 嘴包接紙功能特性，又能實現低坪量區域之内容，亦無任 何暗示。 另一方面，坪量31至35gsm之濾嘴包接紙原紙仍在市 場上流通亦屬事實。然而，此等低坪量濾嘴包接紙原紙雖 然以紙漿（pulp)之調配或攪打程度上確保拉伸強度，然而 由於其柔軟而欠缺剛性，因此應用於附濾嘴之香菸時的捲 包性、捲包品之品質不佳。此外，難燃性亦不足。 【發明内容】 本發明係為了解決上述問題而研創者，其目的在提供 一種既能滿足拉伸強度、剛度、不透明度及難燃性之濾嘴 包接纸功能特性，又能實現低坪量之濾嘴包接紙及具備此 濾嘴包接紙之附濾嘴之香菸。 依據本發明之第1態樣，係提供一種濾嘴包接紙，其 包含紙漿及作為填料之氧化鈦，設前述紙漿之坪量（gsm) 為X，前述氧化鈦之坪量（gsm)為y時，則X及y係滿足下 式： 31Sx + y<35， 惟 X、y 係滿足 2 7 S X < 31、4 S y < 8。 依據本發明之第2態樣，係提供一種附濾嘴之香菸， 係具備前述低坪量濾嘴包接紙。 【實施方式】 4 321928 201132826 二：w發明貫施㈣之低坪量滤嘴包接紙及 實施形態之低坪量滤嘴包接 之氧化鈦’設前述紙漿之坪量(_為x，:真: 量（gsm)為y時，則x及y係滿足 述乳化鈦之坪 X、y 係滿足 27^χ< 31、4^y< 8。^ 1 各x + y<35 ’ 惟 包接紙係包含紙衆及氧化鈦(填料二、實，开九癌之滤嘴 上、小於35gsm，而紙漿及氧化敘 ^里為31gsm以 以上、小於31gsm，4gSm以上、小^里係分別為27gsm % 8gsm。 紙漿只要是用於一般滤嘴包 漿，可列舉例如有分類為L材（闊苹椒’則可為任何紙 木材紙漿、甘嚴⑽柳sse)、亞N材（針葉樹）之 木材單純碎開之機械紙漿、經由等非木材紙漿、將 漿。 予處理而取得之化學紙 氧化鈦係以平均粒徑為〇, 3至 本發明人係根據以下見解為較佳。 接紙 。 見則述之低坪量濾嘴包 (1)低坪量化之問題 從坪量37gsm之通 任何改良，單純地探究低坪量 、’、原紙，不對組成等作 接纸功能特性之拉伸強度、伸為32§咖時之屬於濾嘴包 色度。將其結果顯示於下述第丨座、剛度、不透明度及白 展性、剛度、不透明度及白色表。另外’拉伸強度、伸 方法測量。 <係藉由後述實施例之測量 mcnc 201132826 第1表 物性 單位 適當值 通用品 坪量降低 坪量 gsm — 37. 0 32. 0 拉伸強度 N/15mm 26. 31. 6 22. 3 伸展性 % 1. 1.4 1. 5 剛度 g/15mm 2. 3. 3 1. 9 不透明度 % 80. 80. 9 77. 7 白色度 % 90. 94. 8 94. 8 從前述第1表可得知，單純地低坪量化為32gsm之濾 嘴包接紙原紙之拉伸強度大幅減少。此外，產生剛度、不 透明品質降低的情形。因此，單純的低坪量化無法使用作 為濾嘴包接紙原紙。因此，在低坪量設計上，為了確保拉 伸強度、剛度、不透明度，需進行高度的設計檢討。 (2)確保拉伸強度及剛度 以試驗方式變更通用濾嘴包接紙原紙之組成，就拉伸 強度、剛度之關係方面進行了調查。結果如第1圖所示。 從第1圖發現，調配於濾嘴包接紙原紙之紙漿量需有最小 限量以確保充分的強度物性。若要確保剛度紙漿量需為 25gsm以上、若要確保拉伸強度紙漿量需為27gsm以上。 因此得知，若要滿足強度物性，紙漿量需為27gsm以上。 換言之，已得知若要保持作為濾嘴包接紙原紙適當的強度 物性，坪量27gsm係為下限。 另一方面，如通用濾嘴包接紙原紙之情形，紙漿量小 6 321928 201132826 於27gsm時，亦有使用提升攪打程度來提高纖維密度之方 法或使用較多纖維強度較高的N材。然而，如後述之試驗 « 4、5所示，此種濾嘴包接紙原紙會明顯導致剛度的降低。 r (3)不透明度之確保 若要確保不透明度，需有預定量的填料。於確保前述 之強度物性為前提的紙漿27gsm上，階段性地添加作為填 料的碳酸鈣，就坪量與不透明度之關係進行調查。其結果 如第2圖所示。 從第2圖之結果可得知，在一般僅使用作為填料之碳 酸鈣的情形中，為了達到不透明度之適當值80%，需有8gsm 之碳酸鈣。因此，若要獲得80%之不透明度之濾嘴包接紙 原紙，最低限度的坪量為35gsm(碳酸妈23wt%)。 發明人為了進一步檢討低坪量設計的可能性，將填料 置換為全量氧化鈦進行相同的試驗。其結果一併顯示於第 2圖。從第2圖可得知，以4gms之氧化鈦（Ti〇2)量，亦即 以遠較碳酸鈣少的氧化鈦（Ti〇〇量即可達成不透明度之適 當值80%，而可獲得以坪量31gsm(氧化鈦13wt%)為下限之 濾嘴包接紙。 (4)實施形態之濾嘴包接紙之組成 從前述（1)至（3)之考察可明確得知，為了確保強度物 性，將紙漿之下限量設為27gsm，及將作為填料之氧化鈦 之含量設為至少4gsm。從此查明結果而描繪出第3圖所示 之紙漿量（gsm)與填料量（gsm)之關係，藉由滿足第3圖所 示之斜線部區域之坪量，亦即，包含紙漿及氧化鈦，且設[s] 7 321928 201132826 前述紙聚之坪量（gsm)為X，前述氧化欽之坪量（gsm)為y 時，則X及y係滿足下式·· 31sx + y<35，惟χ、y係滿足 27^x<31、4Sy<8，而實現了低坪量（31gsm以上 '小於 35gsm)之濾嘴包接紙。 此種實施形態之低坪量濾嘴包接紙，係滿足前述第i 表所示之物性、功能之適當值。亦即，拉伸強度、剛度、 不透明度、難燃性及油墨（ink)定著性係分別顯示如下： •拉伸強度：26. ON以上（捲包時之要求品質）、 •剛度：環剛度（loop stiffness)2.〇以上（對於捲包 物有不良皺紋之影響）、 •不透明性：80%以上（碳粉附著隱蔽性、設計上要求 之外觀品質）、 •難燃性.（碟保滤嘴附近之適當燃燒）、 •油墨定著性：與通用品相等、 在實施形態之低坪量濾嘴包接紙中，藉由將施膠度設 為5秒以下，即可提升類如軟木質之廣面積印刷時之油墨 定著性。 亦即，由於一般使用作為填料之碳酸鈣在結構上係為 多孔質（porous)，因此印刷油墨之定著性優異，不容易產 生如油墨脫落之印刷上的問題。另一方面，將填料從碳酸 ，變更為全量氧化鈦之實施形態之濾嘴包接紙，在油墨定 者性方面相對較不佳'因此，製造香於時進行廣泛面積之 印刷時，會有油墨易於剝落，而造成製品污損及機械污損 之原因之虞。 321928 8 201132826 由此等事實觀之，相較於通常施膠度（20秒左右），藉 由將施膠度設定為低至5秒以下，提高了油墨對於濾嘴包 會 接紙的滲透性。結果，不需變更油墨處方，即可提升油墨 ^ 的定著性。另外，施膠劑係可用以下說明之哈客雷施膠度 測試器（Hercules Sizing Tester)值來求出。在實施形態 之濾嘴包接紙中，施膠度係包含零。 (哈客雷施膠度測試值） 此係為1975年由紙漿技術協會（Technical Association of the Pulp and Paper Industry 5 TAPPI) 作為暫定法而實行之廣為所知之方法（TAPPI Provisional methodd T530-PM83)。本發明係從多種施膠度測量法中選 定由本裳置（Hercules Sizing Tester kc-294)實施之測量 法，以進行施膠度之評估。概略而言，係以從濾嘴包接紙 裁斷之評估紙作為底而夾入於由金屬環之壁面所構成之 捲邊機（folder)，且設定於裝置，在裝置中流入以萘酚綠 (naphthol green)作為主劑之染料。流入之後立即啟動測 量開關。紙片經過特定的滲透時間，使紙片背面成為染色 液的綠色，並將到達固定反射率為止之時間予以記錄作為 施膠度（秒）。另外，在此測量中，係設定反射率為80%。 施膠度之降低係可藉由將添加於濾嘴包接紙之施膠齊j 之使用量抑制為較低而達成。施膠劑（sizing agent)之 例，係包含乳液松香（emulsion rosin)膠、松香皂（rosin soap)膠、稀基破拍酸（alkenyl succinic acid)息、脂肪 酸系施膠劑、烧基稀酮二聚體（Alkyl Ketene Dimer)、維 9 321928 201132826 基琥珀酸酐、松香酯系膠、稀基烯酮二聚體苯乙烯（styrene) 系高分子膠。此等施膠劑係可以單獨或以混合物之形態使 用。在施膠劑中係以烷基烯酮二聚體為較佳。 以上所說明之實施形態之低坪量（例如32gsm之坪量） 之濾嘴包接紙係可達成如下效果。 •濾嘴包接紙之厚度係可設為較通用濾嘴包接紙（坪 量37gsm)薄14%(從43// m厚減少至37/z m厚）。因此，捲 繞濾嘴包接紙之紙筒（bobbin)外徑與捲繞通用濾嘴包接紙 之紙筒設為相等時，可進行約15%之長度化（從3000mm增 長至3500mm之長度）。結果，在製造香菸時，可將每一個 紙筒之香菸生產數量增大約15%，而可謀求生產性的提升。 •由於濾嘴包接紙之重量相較於通用濾嘴包接紙（坪 量37gsm)可降低14%，因此減少運送方面的能源，而在環 境、運送成本面有所助益。 •藉由從通用濾嘴包接紙加以變更，不會伴隨大幅成 本的增加，而可既享有前述效益又賦予難燃性。 •只要從坪量37gsm之難燃性原紙變更，即可既享有 前述效益又削減原紙成本。 接著，說明實施形態之附濾嘴之香菸。 實施形態之附濾嘴之香菸係具備前述低坪量濾嘴包接 紙。 參照第4圖詳細說明具體的附濾嘴之香菸。附濾嘴之 香菸係具有將香菸桿1與濾嘴2對接，且將濾嘴2外周面 整體及對接部附近之香菸桿1外周面部分以濾嘴包接紙3 10 321928 201132826 捲包而將香菸桿1與濾嘴2 —體化之構造。香菸桿1係藉 由將煙絲4以捲紙5捲包成圓柱狀而形成。濾嘴2係例如 由將醋酸（acetate)纖維或紙漿之不織布捆束、或摺疊而成 形之濾嘴材（未圖示）、及將該濾嘴材捲成圓柱狀之成形紙 (plug wrap paper)6所形成。濾嘴包接紙3係包含紙漿及 作為填料之氧化鈦者，若設紙漿之坪量（gsm)為X，氧化鈦 之坪量（gsm)為y，則X及y係滿足下式：31 S X + y < 35， 惟 X、y 係滿足 2 7 S X < 31、4 S y < 8。 此種實施形態之附濾嘴之香菸，從前述低坪量濾嘴包 接紙之效果來看，可謀求既維持其功能特性（拉伸強度、剛 度、不透明度及難燃性）又謀求低重量化、低成本化。 以下詳細說明本發明之實施例。另外，在以下實施例 中，紙衆材料係使用將L材及N材混合成適當比例之木材 紙漿，而碳酸鈣係使用具有平均粒徑5/zm者，氧化鈦係使 用具有平均粒徑0. 者。 (實施例1) 準備具有下述第2表所示組成之4種濾嘴包接紙。另 外，此等濾嘴包接紙（比較1、試驗1至3)係添加有屬於施 膠劑之烷基烯酮二聚體而將施膠度分別調整為21秒、23 秒、23秒、23秒。藉由將各濾嘴包接紙依以下方法測量拉 伸強度、伸展性、剛度、不透明度、白色度及厚度。其結 果如下述第2表所示。 1)拉伸強度 使用定速伸展型拉伸試驗機（騰喜龍（tensi Ion)型拉s ] 11 321928 201132826 伸試驗機）。將從濾嘴包接紙裁斷之15mm寬度紙片之長度 方向兩端固定於測量器之可動爪。移動可動部位，以電性 方式檢測在固定速度下紙片剛要斷開前的最大荷重，並以 牛頓單位記錄（依據JIS P8113)。 2) 伸展性 使用定速伸展型拉伸試驗機（騰喜龍（tensi Ion)型拉 伸試驗機）。將從濾嘴包接紙裁斷之15mm寬度紙片之長度 方向兩端固定於測量器之可動爪。移動可動部位，以電性 方式檢測在固定速度下紙片剛要斷開前的最大伸展量，並 以％單位記錄（依據JIS P8113)。 3) 剛度 使用環剛度測試器（東洋精機製作所股份有限公司 製）。將從濾嘴包接紙裁斷之15mm寬度紙片之長度方向兩 端固定於測量器之可動部位。之後，以可動部位縮小兩端 的間隔’作成由62丽長的紙片所形成之紙片壞。以信號言買 取紙片環抵接於感測器時之最大應力，並以g單位記錄。 抵接於紙片環之感測器之可動量係設定為在抵接於紙片後 2 mm 〇 4) 不透明度 使用光電（photovo 11)方式之測量計，將對每一片從遽 嘴包接紙裁斷之紙片進行測量，並以％單位作記錄。 5) 白色度 使用光電（photovo 11)方式之測量器，以使來自光源之 光不穿透的方式將從濾嘴包接紙裁斷之紙片重疊預定片數 12 321928 201132826 而予以測量，並以％單位記錄。 6)厚度 以數位式測微計（digital micrometer)測量從濾嘴包 接紙裁斷之紙片，並依每片以單位記錄（依據JIS P8118)。 第2表 試料 名稱 濾嘴包接紙之組成 濾嘴包接紙之物性 坪量 紙漿量 填料量 填料比例 拉伸強度 伸展性 剛度 不透明度 白色度 厚度 (gsm) (gsm) (gsm) (%) (N/15_) ⑻ (g/15mm) 00 (%) (㈣） 比較1 37 29.2 CaC〇3 ： 7.8 21 32.4 1.4 3.4 80,0 93 43 試驗1 32 27.8 Ti〇2 ： 4.2 13 29.0 1.4 3.0 80,5 91 37 試驗2 33 28.7 m: 4· 3 13 31.2 1.5 3.2 80.9 91 38 試驗3 34 29.7 Ti〇2 ： 4. 4 13 33.6 1.5 3.6 81.0 91 39 從前述第2表可得知，與坪量為37gsm、填料為碳酸 鈣之通用品之比較1之濾嘴包接紙相比，本發明試驗例1 至3之低坪量（32至34gsm)濾嘴包接紙具有毫不遜色之功 能特性，且具有高品質。 (實施例2) 準備下述第3表所示之2種濾嘴包接紙。此等濾嘴包 接紙中之紙漿，係使用設為較本發明之紙漿下限量（27gsm) 更少的篁，且將攪打程度極度提升者。將此等濾嘴包接紙 藉由與貝知例1相同之方法來測量拉伸強度、伸展性、剛 度、不透明度、白色度及厚度。結果如下述第3表所示。 321928 13 201132826 第3表 試料 名稱 濾嘴包 換纸之组成 涑嘴包接紙之物性 坪量 (gsm) 紙漿量 (gsm) 填料量 (gsm) 填料比例 (¾) 拉伸強度 (N/15miD) 伸展性 (X) 剛度 (g/Ι 5ππη) 不遘明度 (¾) 白色度 (%) 试驗4 31 23. 〇 TiO:: 8 26 33 1.5 0. 9 80. 6 90 栻驗5 33 24. 〇 Ti〇z : 8 24 29 1.3 0.8 80. 1 90 從前述第3表可得知’試驗4、5之濾嘴包接紙雖係為 低坪量（31gsm、33gsm) ’惟由於紙漿量係為較本發明之紙 漿下限量（27gsm)還少的量（23.0gsm、24.0gsm)，因此雖藉 由前述之高攪打程度確保了拉伸強度，但剛度卻顯著降低。 (實施例3) 準備組成與前述第2表之比較1之濾嘴包接紙（施膠 度：21秒）、試驗1之濾嘴包接紙（施膠度：23秒）、及前 述第2表之試驗1相同，但調整烷基烯酮二聚體之添加量 作為施膠劑之施膠度5秒之試驗6之濾嘴包接紙。將此等 濾嘴包接紙藉由以下方法進行油墨定著性試驗。結果顯示 於下述第4表。 Ό油墨之定著性 油墨之定著性，需評估對於摩擦之耐磨損性' 及對於 剥落之安定性雙方。 耐磨損性係使用學振式摩擦堅固度試驗機。摩擦件係 由半圓柱狀摩擦件本體（尺寸：底面部為長度20mmx寬度 2〇咖、曲率半徑為45咖、重量為15〇g)、及安裝於此摩擦 件本體之上部曲面之2〇〇g圓柱狀錘（直徑45mmx高度24mm) 14 321928 201132826 所構成。在前述摩擦件之摩擦件本體之底面部係安裝有與 該底面部相同尺寸之油墨脫落觀察用白色試紙。此外，在 曲率半徑200mm之半圓柱狀不鏽鋼盤之矩形平坦面固定施 有印刷之試片（已印刷完成之試片）。耐磨損性試驗係將前 述摩擦件載置於前述不鏽鋼盤之已印刷完成之試片上以使 前述白色試紙與該試片抵接，且於將摩擦件在已印刷完成 之試片上來回摩擦50次之後，觀察試紙來評估顏色脫落程 度。 安定性係在將市售之黏著帶以100g之荷重黏附於前 述已印刷完成之試片之後，觀察其立即剝除時之顏色脫落 程度。 藉由此種試驗之油墨定著性，係將發現油墨對於白色 試紙或黏著帶有顯著轉移時判定為「不良」、發現些微油墨 轉移時判定為「良好」、幾乎未發現油墨之轉移、或紙剝落 到黏著帶上且連同紙層一起剝離時則判定為「非常良好」。 第4表 試料名稱 施膠度（秒） 油墨定著性 比較1 21 非常良好 試驗1 23 良好’ 試驗6 5 非常良好 從前述第4表可得知，本發明之試驗1之低坪量（32gsm) 濾嘴包接紙，即使施膠度為23秒亦具有良好之油墨定著 性，而將施膠度設為5秒之本發明之試驗6之低坪量（SZgsnp。 15 321928 201132826 滤嘴包接紙’係與施膠度為21秒之通用品之比較i之遽嘴 包接紙（坪量：37gSm)相等，顯示更良好之油墨定著性。 (實施例4) 將前述第2表之比較1、試驗卜3之濾嘴包接紙分別 應用於_嘴之秘之品牌A及品牌β。針對此等品牌A、 B，藉由以下方法進行難燃性調查。結果如下述第5表所示。 8)難燃性 將香菸水平裝設於自動抽煙機（B0RGWALD公司RM2 〇 / CS)，藉由1次吸煙點火之後’使其自然燃燒到熄滅。觀察 燃燒結束之香菸，計算燃燒進行至濾嘴包接紙而火種掉落 者、及火種雖未掉落但燃燒仍進行至濾嘴包接紙者之數 量’並求出各自的比例。另外’濾嘴包接紙之香菸桿側前 端有些微焦黑程度’明顯停止燃燒者，則認為具有難燃性 從前述計數中去除。 第5表 品牌 濾嘴包接紙區分 火種掉落之比例 (°/〇) 濾嘴包接紙燃燒 之比例（％) A 比較1 5 ----- 65 試驗1 0 0 試驗3 0 :—--- 0 B 比較1 22 100 試驗1 5 25 試驗3 5 —--- 25 321928 16 201132826 從前述第5表可得知，相較於使用比較1之濾嘴包接 紙之附濾嘴香菸（品牌A、B)，使用試驗1及試驗3之濾嘴 包接纸之附濾嘴香菸（品牌A、B)具有優異之難燃性。 [產業上之可利用性] 本發明可提供一種提升附濾嘴之香菸之生產性，藉由 低重量化改善環境、運送成本，並達成降低原紙成本之濾 嘴包接紙；以及具備此濾嘴包接紙，既維持濾嘴包接紙所 要求之功能特性(拉伸強度、剛度、不透明度及難燃性）， 又達成低重量化、低成本化之附濾嘴之香於。 【圖式簡單說明】 第1圖係為顯示通用原紙之紙漿量與拉伸強度及剛度 之關係圖。 第2圖係為顯示以碳酸鈣或氧化鈦為填料添加於特定 量之紙衆時之坪量與不透明度之關係圖。 第3圖係為顯示實現本發明之濾嘴包接紙之低坪量化 時之紙漿量與填料（氧化鈦）量之適當範圍圖。 第4圖係為顯示本發明實施形態之附濾嘴之香菸之斜 視圖。 2 濾嘴 4 煙絲 6 圓柱狀之成形紙 【主要元件符號說明 1 香於桿 3 濾嘴包接紙 5 捲紙 17 321928201132826 VI. Description of the Invention: [Technical Field to Which the Invention Is Applicable] The present invention relates to a package of a bag with a bag as a filter for a filter of a fiiter cigarette. Tip paper and attached filter with this filter wrapper. [Prior Art] A cigarette-attached cigarette is abutting a cigarette rod with a filter, and the outer peripheral surface of the filter and the outer peripheral surface portion of the cigarette rod in the vicinity of the butt portion are integrally formed by wrapping the paper with a filter. : The above-mentioned filter-wrapped paper has the tensile strength required for the quality of the package, the package, the rigidity required for the appearance of the package, the adhesion of the toner, the opacity required for the design, and It is preferable to use a low level in terms of the functional characteristics such as the flame retardancy of the proper combustion in the vicinity of the filter, and the weight reduction on the production surface and transportation. However, Japanese Patent No. 2875184 discloses an invention of a flame retardant base paper for a filter wrapper containing titanium oxide and kaolin as a filler. However, this invention relates to the improvement of the filler, and the base paper is as described in the examples and stays at a normal basis weight (37 gsm). Japanese Laid-Open Patent Publication No. Hei 10-219599 discloses a calcium carbonate containing a specific particle size to reduce the cutting device (blade, etc.) at the time of cutting. In the patent application scope of this publication, the amount of the coated paper is 32 gsm. However, the invention of the aforementioned publication is aimed at replacing titanium dioxide with a lower cost, and since calcium carbonate having a specific particle size is used as the substitute material, it is sacrificed as a filter wrapper to be t 3 321928 201132826 Sex. Therefore, all of the aforementioned patent documents do not describe at all the design of the filter wrap paper, which can satisfy the tensile strength, rigidity, opacity and flame retardancy of the filter wrap function, and can realize the low-pitch area. There is no hint of content. On the other hand, it is also true that the filter-coated paper base paper with a basis weight of 31 to 35 gs is still in circulation on the market. However, these low-pitch filter-coated paper base papers ensure the tensile strength while blending or pulsing the pulp, but because of its softness and lack of rigidity, the roll is applied to the cigarette with the filter. The quality of the package and the package is not good. In addition, the flame retardancy is not enough. SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object thereof is to provide a filter-bundling function characteristic capable of satisfying tensile strength, rigidity, opacity, and flame retardancy, and achieving low-level The filter wraps the paper and the cigarette with the filter attached to the filter wrapper. According to a first aspect of the present invention, there is provided a filter wrapper comprising a pulp and a titanium oxide as a filler, wherein the pulp has a basis weight (gsm) of X, and the amount of the titanium oxide (gsm) is When y, X and y satisfy the following formula: 31Sx + y < 35, but X and y satisfy 2 7 SX < 31, 4 S y < According to a second aspect of the present invention, there is provided a cigarette with a filter, comprising the aforementioned low-pitch filter wrapper. [Embodiment] 4 321928 201132826 2: wInvented (4) low-level filter filter paper and the low-level filter of the embodiment of the titanium oxide 'set the amount of pulp (_ is x,: True: When the amount (gsm) is y, then x and y satisfy the embossed titanium ping X, y system satisfies 27^χ< 31, 4^y<8.^1 each x + y<35 ' The paper system consists of paper and titanium oxide (filler 2, real, open 9 cancer filter, less than 35gsm, and pulp and oxidation is 31gsm or more, less than 31gsm, 4gSm or more, small ^li is 27gsm % 8gsm. As long as the pulp is used for general filter laundering, for example, wood classified into L material (wide pepper) can be any paper wood pulp, Ganyan (10) willow sse, and sub-N material (conifer) The mechanical pulp which has been simply broken, the chemical paper titanium oxide obtained by the treatment, etc., has an average particle diameter of 〇, and the present inventors have preferred knowledge based on the following findings. The low-level filter bag (1) The problem of low-level quantification is improved from the level of 37gsm, and the low-level is simply explored. ', the base paper, the tensile strength of the paper-forming function, and the color of the filter bag when it is 32 § coffee. The results are shown in the following pedestal, stiffness, opacity and whiteness. , stiffness, opacity and white table. In addition, 'tensile strength, extension method measurement. <Measurement by the following example mcnc 201132826 1st physical property unit appropriate value of the amount of flats to reduce the amount of gsm — 37. 0 32. 0 Tensile strength N/15mm 26. 31. 6 22. 3 Extensibility % 1. 1.4 1. 5 Stiffness g/15mm 2. 3. 3 1. 9 Opacity% 80. 80. 9 77. 7 White Degree % 90. 94. 8 94. 8 As can be seen from the above-mentioned first table, the tensile strength of the filter-coated paper base paper which is simply reduced to 32 gsm is reduced, and the rigidity and the opaque quality are lowered. Therefore, the simple low-level quantification cannot be used as the filter-coated paper base paper. Therefore, in the low-floor design, in order to ensure tensile strength, rigidity, and opacity, a high-level design review is required. Stretch strength and stiffness change the general filter package paper original The composition was investigated in terms of the relationship between tensile strength and stiffness. The results are shown in Fig. 1. From Fig. 1, it is found that the amount of pulp blended on the filter-coated paper base paper is required to have a minimum amount to ensure sufficient strength. Physical properties. To ensure that the amount of rigid pulp needs to be 25 gsm or more, it is necessary to ensure that the tensile strength of the pulp amount is 27 gsm or more. Therefore, it is known that the pulp amount needs to be 27 gsm or more in order to satisfy the strength physical properties. In other words, it has been found that the level of 27 gsm is the lower limit in order to maintain proper strength properties as the filter paper base paper. On the other hand, if the general filter package is used for paper base paper, the amount of pulp is small 6 321928 201132826 At 27gsm, there is also a method of increasing the whipping to increase the fiber density or using a higher fiber strength N material. However, as shown in the tests « 4 and 5 described later, such a filter-coated paper base paper significantly causes a decrease in rigidity. r (3) Opacity guarantee To ensure opacity, a predetermined amount of filler is required. On the 27 gsm of the pulp which is premised on ensuring the strength and physical properties described above, calcium carbonate as a filler was added in stages, and the relationship between the amount of turbidity and the opacity was investigated. The result is shown in Figure 2. As is apparent from the results of Fig. 2, in the case where only calcium carbonate as a filler is generally used, in order to achieve an appropriate value of opacity of 80%, 8 gsm of calcium carbonate is required. Therefore, to obtain 80% opacity of the filter-coated base paper, the minimum level of slab is 35gsm (23% by weight of carbonated mother). In order to further review the possibility of low-level design, the inventors replaced the filler with the full amount of titanium oxide for the same test. The results are shown together in Figure 2. It can be seen from Fig. 2 that the amount of titanium oxide (Ti〇2) of 4 gms, that is, the amount of titanium oxide which is much lower than that of calcium carbonate (the amount of Ti〇〇 can achieve an appropriate value of opacity of 80%, The filter paper having a lower limit of 31 gsm (titanium oxide 13 wt%) is the lower limit. (4) The composition of the filter wrap paper of the embodiment can be clearly seen from the above (1) to (3), in order to ensure the strength The physical properties are such that the lower limit of the pulp is 27 gsm and the content of the titanium oxide as the filler is at least 4 gsm. From the results, the amount of pulp (gsm) and the amount of filler (gsm) shown in Fig. 3 are drawn. The relationship is obtained by satisfying the amount of the inclined portion of the region shown in Fig. 3, that is, containing pulp and titanium oxide, and setting [s] 7 321928 201132826, the paper gathering amount (gsm) is X, the aforementioned oxidation When the amount of ping (gsm) is y, X and y satisfy the following formula: · 31sx + y < 35, but χ, y system satisfies 27^x < 31, 4Sy < 8, and achieves low level (31gsm) The filter of the above-mentioned 'less than 35gsm' is included in the paper. The low-pitch filter of this embodiment is suitable for the physical properties and functions shown in the above table i. That is, tensile strength, stiffness, opacity, flame retardancy, and ink (ink) consistency are shown as follows: • Tensile strength: 26. ON or higher (required quality at the time of wrapping), • Stiffness: Loop stiffness 2. 〇 or more (for the effect of undesirable wrinkles on the package), • opacity: 80% or more (carbon adhesion concealment, design required appearance quality), • flame retardant. Appropriate combustion in the vicinity of the disc protection filter), • Ink fixing: equal to the general-purpose product, in the low-pitch filter wrapper of the embodiment, by setting the sizing degree to 5 seconds or less, it can be improved In particular, since the calcium carbonate which is generally used as a filler is structurally porous, the printing ink is excellent in fixability and is not easily produced. On the other hand, the filter wrap paper of the embodiment in which the filler is changed from carbonic acid to full titanium oxide is relatively inferior in terms of ink properties. Wide area printing At the same time, there is a possibility that the ink is easily peeled off, which causes the product to be stained and mechanically stained. 321928 8 201132826 From this fact, compared with the usual sizing degree (about 20 seconds), by sizing The degree is set to be as low as 5 seconds or less, which improves the permeability of the ink to the filter bag. As a result, the fixing of the ink can be improved without changing the ink prescription. In addition, the sizing agent can be used as follows. The value of the Hercules Sizing Tester is determined by the value of the Hercules Sizing Tester. In the filter wrapper of the embodiment, the sizing degree contains zero. (Hacker's Glue Test Value) This is a widely known method implemented in 1975 by the Technical Association of the Pulp and Paper Industry 5 TAPPI as a tentative method (TAPPI Provisional methodd T530-PM83). ). The present invention selects a measurement method performed by Hercules Sizing Tester kc-294 from a plurality of sizing measures to evaluate the sizing degree. Roughly, the evaluation paper cut from the filter wrapper is used as a bottom to sandwich a folder formed by the wall surface of the metal ring, and is set in the device, and the device is filled with naphthol green. (naphthol green) as a dye for the main agent. Start the measurement switch immediately after the inflow. The paper passes through a specific penetration time so that the back side of the paper becomes green of the dyeing liquid, and the time until the fixed reflectance is reached is recorded as the sizing degree (seconds). In addition, in this measurement, the reflectance was set to 80%. The reduction in the degree of sizing can be achieved by suppressing the amount of the sizing added to the filter wrapper to be low. Examples of sizing agents include emulsion rosin gum, rosin soap gel, alkenyl succinic acid, fatty acid sizing agent, and ketone ketone. Dimer (Alkyl Ketene Dimer), Dimension 9 321928 201132826 base succinic anhydride, rosin ester gum, dimethyl ketene dimer styrene (styrene) polymer glue. These sizing agents can be used singly or in the form of a mixture. Among the sizing agents, alkyl ketene dimers are preferred. The filter-wound paper system of the low-level (for example, the basis of 32 gsm) of the embodiment described above can achieve the following effects. • The thickness of the filter wrapper can be set to 14% thinner than the universal filter wrap (33gsm) (from 43//m thick to 37/z m thick). Therefore, when the outer diameter of the bobbin of the winding filter wrapper is equal to the paper roll of the universal filter wrapper, the length can be increased by about 15% (from 3000 mm to 3500 mm). ). As a result, in the manufacture of cigarettes, the number of cigarettes produced per cigarette can be increased by about 15%, and productivity can be improved. • Since the weight of the filter wrapper is 14% lower than that of the universal filter wrap (33gsm), the energy in transportation is reduced, which is beneficial in terms of environment and shipping costs. • By changing the paper from the universal filter, it does not increase with a large cost, and it can enjoy both the aforementioned benefits and flame retardancy. • As long as the flame retardant base paper of 37gsm is changed, it can enjoy both the aforementioned benefits and the cost of the base paper. Next, a cigarette with a filter according to the embodiment will be described. The cigarette with a filter according to the embodiment is provided with the aforementioned low-pitch filter wrapper. The specific cigarette with a filter will be described in detail with reference to Fig. 4. The cigarette with a filter has a cigarette rod 1 and a filter 2, and the outer peripheral surface of the filter 2 and the outer peripheral surface of the cigarette rod 1 in the vicinity of the butt portion are wrapped by a filter wrapper 3 10 321928 201132826 The structure of the cigarette rod 1 and the filter 2 is integrated. The cigarette rod 1 is formed by winding the shredded tobacco 4 into a cylindrical shape with a roll paper 5. The filter 2 is, for example, a filter material (not shown) obtained by bundling or folding a non-woven fabric of acetate fibers or pulp, and a plug wrap paper in which the filter material is wound into a cylindrical shape. ) 6 formed. The filter wrapper 3 includes pulp and titanium oxide as a filler. If the pulp (gsm) is X and the titanium oxide (gsm) is y, then X and y satisfy the following formula: 31 SX + y < 35, but X, y system satisfies 2 7 SX < 31, 4 S y < In the cigarette with the filter of the embodiment, it is possible to maintain the functional properties (tensile strength, rigidity, opacity, and flame retardancy) and low in weight from the effect of the low-pitch filter-wrapped paper. Weight and cost. The embodiments of the present invention are described in detail below. Further, in the following examples, the paper material is a wood pulp which is obtained by mixing the L material and the N material into an appropriate ratio, and the calcium carbonate is used having an average particle diameter of 5/zm, and the titanium oxide is used having an average particle diameter of 0. . By. (Example 1) Four kinds of filter wrap papers having the compositions shown in the following Table 2 were prepared. In addition, these filter wraps (Comparative 1, Tests 1 to 3) were added with an alkyl ketene dimer belonging to the sizing agent to adjust the sizing degree to 21 seconds, 23 seconds, 23 seconds, respectively. 23 seconds. Tensile strength, stretchability, stiffness, opacity, whiteness, and thickness were measured by wrapping each filter in the following manner. The results are shown in Table 2 below. 1) Tensile strength A constant-speed stretch type tensile tester (tensi Ion type pull s] 11 321928 201132826 stretch test machine) is used. The movable claws of the measuring device are fixed at both ends of the length of the 15 mm-width paper cut from the filter wrapper. The movable part is moved to electrically detect the maximum load immediately before the sheet is disconnected at a fixed speed, and is recorded in Newton units (according to JIS P8113). 2) Extensibility A fixed-speed tensile tester (tensi Ion type tensile tester) was used. The movable claws of the measuring device are fixed at both ends of the length of the 15 mm-width paper cut from the filter wrapper. The movable portion is moved to electrically detect the maximum amount of stretch immediately before the sheet is cut at a fixed speed, and is recorded in % units (according to JIS P8113). 3) Stiffness Use a ring stiffness tester (manufactured by Toyo Seiki Seisakusho Co., Ltd.). The two ends of the 15 mm-width paper cut from the filter wrapper are fixed to the movable portion of the measuring device. Thereafter, the sheet formed by the 62-length paper piece was made to be broken by the interval of the movable portion narrowed at both ends. The signal is used to buy the maximum stress when the paper ring abuts against the sensor and is recorded in g units. The movable amount of the sensor that abuts the paper ring is set to 2 mm 抵 4) after the paper is abutted. The opacity uses a photoelectric (photovo 11) meter, which cuts each piece from the paper. The paper is measured and recorded in % units. 5) The whiteness uses a photoelectric (photovo 11) type measuring device so that the light from the light source does not penetrate, and the paper piece cut from the filter wrapper is overlapped by a predetermined number of sheets 12 321928 201132826, and is measured in % Unit record. 6) Thickness The paper cut from the filter wrapper was measured with a digital micrometer and recorded in units per unit (according to JIS P8118). Table 2 Sample Name Filter Packing Paper Composition Filter Packing Paper Physical Plains Pulp Volume Filling Material Packing Ratio Tensile Strength Extensibility Stiffness Whiteness Thickness (gsm) (gsm) (gsm) (%) (N/15_) (8) (g/15mm) 00 (%) ((iv)) Comparison 1 37 29.2 CaC〇3 : 7.8 21 32.4 1.4 3.4 80,0 93 43 Test 1 32 27.8 Ti〇2 : 4.2 13 29.0 1.4 3.0 80 , 5 91 37 Test 2 33 28.7 m: 4· 3 13 31.2 1.5 3.2 80.9 91 38 Test 3 34 29.7 Ti〇2 : 4. 4 13 33.6 1.5 3.6 81.0 91 39 From the above table 2, it is known that Compared with the filter wrapper of the comparison 1 of the 37 gsm and the filler of calcium carbonate, the low-pitch (32 to 34 gsm) filter wrapper of the test examples 1 to 3 of the present invention has inferior functional properties. And with high quality. (Example 2) Two types of filter wrappers shown in Table 3 below were prepared. The pulp in such filter-coated papers is used with less enthalpy than the lower limit of pulp (27 gsm) of the present invention, and the degree of whipping is extremely enhanced. These filters were wrapped in paper, and tensile strength, elongation, rigidity, opacity, whiteness, and thickness were measured by the same method as in Example 1. The results are shown in Table 3 below. 321928 13 201132826 The third table sample name The composition of the filter bag change paper The physical mass of the pour-mouth bag (gsm) The amount of pulp (gsm) The amount of filler (gsm) The proportion of the filler (3⁄4) Tensile strength (N/15miD) Extensibility (X) Stiffness (g/Ι 5ππη) Unsaturated (3⁄4) Whiteness (%) Test 4 31 23. 〇TiO:: 8 26 33 1.5 0. 9 80. 6 90 Test 5 33 24. 〇Ti〇z : 8 24 29 1.3 0.8 80. 1 90 From the above table 3, it can be seen that 'the test packets of test 4 and 5 are low-level (31gsm, 33gsm)', but due to the pulp volume In addition to the amount of the lower limit of pulp (27 gsm) of the present invention (23.0 gsm, 24.0 gsm), although the tensile strength was ensured by the aforementioned high degree of whipping, the rigidity was remarkably lowered. (Example 3) A filter wrapper (sizing degree: 21 seconds) having a composition 1 compared with the above-mentioned second table, a filter wrapper of the test 1 (sizing degree: 23 seconds), and the foregoing The test 1 of Table 2 was the same, but the addition amount of the alkyl ketene dimer was adjusted as the sizing degree of the sizing agent for 5 seconds. These filter packets were subjected to an ink fixability test by the following method. The results are shown in Table 4 below. The consistency of the ink is determined by the fixability of the ink, and the wear resistance of the friction and the stability of the peeling. The abrasion resistance is measured by a vibration-type frictional strength tester. The friction member is composed of a semi-cylindrical friction member body (dimensions: a bottom portion having a length of 20 mm x a width of 2 mm, a radius of curvature of 45 coffee, a weight of 15 〇g), and a surface mounted on the upper surface of the friction member body. g cylindrical hammer (diameter 45mm x height 24mm) 14 321928 201132826. A white test paper for ink drop observation having the same size as the bottom surface portion is attached to a bottom surface portion of the friction material body of the friction material. Further, a printed test piece (a printed test piece) was fixedly mounted on a rectangular flat surface of a semi-cylindrical stainless steel disk having a radius of curvature of 200 mm. In the abrasion resistance test, the friction member is placed on the printed test piece of the stainless steel disk to abut the white test paper and the friction piece is rubbed back and forth on the printed test piece. After that, the test paper was observed to evaluate the degree of color shedding. The stability was observed after the commercially available adhesive tape was adhered to the previously printed test piece with a load of 100 g, and the degree of color shedding at the time of immediate peeling was observed. By the ink fixing property of such a test, it was found that the ink was judged as "poor" when the white test paper or the adhesive had a significant transfer, and it was judged as "good" when the micro ink transfer was found, and almost no ink transfer was observed, or When the paper was peeled off onto the adhesive tape and peeled off together with the paper layer, it was judged as "very good". Table 4 Sample Name Sizing (seconds) Ink Fixability Comparison 1 21 Very Good Test 1 23 Good 'Test 6 5 Very Good From the above Table 4, the low level of the test 1 of the present invention (32gsm) The filter wraps the paper, even if the sizing degree is 23 seconds, it has a good ink fixability, and the sizing degree is set to 5 seconds. The low level of the test 6 of the present invention (SZgsnp. 15 321928 201132826 filter) The wrapper paper is equivalent to a general-purpose product with a sizing degree of 21 seconds, which is equivalent to a squeegee paper (ply amount: 37 gSm), and exhibits better ink fixability. (Example 4) Comparison of the table 1. The filter bag paper of the test 3 is applied to the brand A and the brand β of _ mouth secret. For these brands A and B, the flame retardancy investigation is conducted by the following methods. 5) 8) Flame retardant The cigarette is horizontally installed in an automatic smoking machine (B0RGWALD RM2 〇/CS), which is naturally burned to extinguish after being ignited by one cigarette. The cigarettes at the end of the combustion were observed, and the number of persons who burned to the filter wrapper and dropped the seeds, and the number of fires that did not fall but the combustion continued to the filter wrap was counted, and the respective ratios were determined. In addition, when the front end of the cigarette rod side of the filter wrapper has a slight degree of blackness, the burner is obviously stopped, and it is considered that the flame retardance is removed from the above counting. The fifth table brand filter bag paper to distinguish the proportion of fire drop (° / 〇) filter package paper burning ratio (%) A comparison 1 5 ----- 65 test 1 0 0 test 3 0 : --- 0 B Comparison 1 22 100 Test 1 5 25 Test 3 5 —--- 25 321928 16 201132826 As can be seen from the above table 5, the filter cigarette attached to the filter wrapper using the comparison 1 (Brands A, B), filter cigarettes (brands A, B) using the filter wraps of Tests 1 and 3 have excellent flame retardancy. [Industrial Applicability] The present invention can provide a filter for improving the productivity of a cigarette with a filter, improving the environment and transportation cost by reducing the weight, and achieving a filter wrapper that reduces the cost of the base paper; The mouth is covered with paper, which not only maintains the functional properties (tensile strength, stiffness, opacity, and flame retardancy) required for the filter wrap, but also achieves a low-weight, low-cost filter with a filter. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a graph showing the relationship between the amount of pulp of a general base paper and tensile strength and rigidity. Fig. 2 is a graph showing the relationship between the amount of plaque and the opacity when calcium carbonate or titanium oxide is added as a filler to a specific amount of paper. Fig. 3 is a view showing an appropriate range of the amount of pulp and the amount of filler (titanium oxide) in realizing the low-level quantification of the filter wrapper of the present invention. Fig. 4 is a perspective view showing a cigarette with a filter according to an embodiment of the present invention. 2 Filter 4 Tobacco 6 Cylindrical forming paper [Main component symbol description 1 Fragrant rod 3 Filter wrap paper 5 Roll paper 17 321928