JP2016520727A - 超極細合成繊維結着剤を含む紙及び不織布製品 - Google Patents
超極細合成繊維結着剤を含む紙及び不織布製品 Download PDFInfo
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Abstract
Description
a)複数の繊維と複数の結着剤超極細繊維を含み、該結着剤繊維は水に非分散性の合成重合体を含み、該結着剤繊維は25ミリメータ未満の長さと0.5d/f未満の繊度を有し、該結着剤超極細繊維の溶解温度は該繊維の溶解温度より低い繊維原料を用意すること、
b)該繊維原料を湿式不織布工程に送り、少なくとも1つの湿式不織布ウェブ層を製造すること、
c)該湿式不織布ウェブ層から水を除去すること、及び
d)工程(c)の後で該湿式不織布ウェブ層を熱接着することを含み、該熱接着は該繊維が溶融して該結着剤超極細繊維と該繊維が接着されることなく、該結着剤超極細繊維の表面が少なくとも部分的に溶融するような温度で行って紙または不織布製品を製造することを含む。
a)複数の繊維と複数の結着剤超極細繊維を含み、この結着剤超極細繊維は水に非分散性の合成重合体を含み、この結着剤繊維は25ミリメータ未満の長さと0.5d/f未満の繊度を有し、この結着剤超極細繊維の溶解温度は上記繊維の溶解温度より低い繊維原料を用意すること、
b)上記繊維原料を湿式不織布工程に送り、少なくとも1つの湿式不織布ウェブ層を製造すること、
c)上記湿式不織布ウェブ層から水を除去すること、及び
d)工程(c)の後で上記湿式不織布ウェブ層を熱接着することを含み、上記熱接着は上記繊維が溶融して上記結着剤超極細繊維と上記繊維が接着することなく、上記結着剤超極細繊維の表面が少なくとも部分的に溶融するような温度で行って紙または不織布製品を製造することを含む。
(b)工程a)の多成分繊維を25、12、10、または2ミリメータ未満だが0.1、0.25、または0.5ミリメータ超に切断して切断多成分繊維を製造すること、
(c)上記切断多成分繊維を水と接触させて上記スルホポリエステルを除去し、上記水に非分散性の合成重合体を含む結着剤超極細繊維のウェットラップ(wet lap)を形成すること、
(d)複数の繊維と結着剤超極細繊維に対して湿式不織布工程を行って湿式不織布ウェブを製造することであって、上記水に非分散性超極細繊維は0.5d/f未満の繊度を有し、上記結着剤超極細繊維の溶解温度は上記繊維の溶解温度より低く、
(e)水を上記湿式不織布ウェブから除去すること、及び
(f)工程(e)の後で上記湿式不織布ウェブを熱接着することであって、上記熱接着は上記繊維が溶融して上記結着剤超極細繊維と上記繊維が接着することなく、上記結着剤超極細繊維の表面が少なくとも部分的に溶融するような温度で行って紙または不織布製品を製造する。
(a)必要なら結着剤超極細繊維を水で洗浄すること、
(b)上記結着剤超極細繊維に水を加えて超極細繊維スラリーを調製すること、
(c)上記超極細繊維スラリーに他の繊維と、必要なら添加剤を添加して繊維原料を調製すること、
(d)上記繊維原料を、不織布ウェブを製造するための湿式不織布工程に送ること、
(e)湿式不織布ウェブ層から水を除去すること、
(f)工程(e)の後で上記湿式不織布ウェブ層を熱接着し、上記熱接着は上記繊維が溶融して上記結着剤超極細繊維と上記繊維を結着させずに上記結着剤超極細繊維の表面が少なくとも部分的に溶融するような温度で行って紙または不織布製品を製造すること、及び
(g)必要ならこの熱接着した紙及び/または不織布製品をコーティングすることを含む方法が提供される。
(i)総酸残基に対してイソフタル酸及び/またはテレフタル酸の1つ以上の残基を約50〜約96モル%、
(ii)総酸残基に対してソジオスルホイソフタル酸残基を約4〜約30モル%
(iii)総ジオール残基に対して少なくとも25モル%が構造H(OCH2−CH2)n−OH(nは2から約500の範囲内の整数)を有するポリ(エチレングリコール)である1つ以上のジオール残基、及び
(iv)官能基がヒドロキシル、カルボキシル、またはこれらの組み合わせであるような3つ以上の官能基を有する分岐単量体の残基を総繰り返し単位に対して0〜約20モル%含む。スルホポリエステルは、240℃、ひずみ速度1rad/secで測定した溶融粘度が12,000、8,000、または6,000ポイズ未満であることが理想的である。
(a)多成分繊維を25ミリメータ未満の長さを有する切断多成分繊維に切断して切断多成分繊維を製造すること、
(b)上記切断多成分繊維を、pHが10、8、7.5、または7未満であり、実質的に腐食剤が添加されていない洗浄水と少なくとも0.1、0.5、または1分間及び/または30、20、または10分以下の間、接触させて繊維混合スラリーを製造すること、
(c)上記繊維混合スラリーを加熱して加熱繊維混合スラリーを製造すること、
(d)必要なら剪断ゾーンで上記繊維混合スラリーを混合すること、
(e)上記多成分繊維からスルホポリエステルの少なくとも一部を除去してスルホポリエステル分散体と上記結着剤超極細繊維を含むスラリー混合物を製造すること、
(f)上記スラリー混合物から上記スルホポリエステル分散体の少なくとも一部を除去して、少なくとも5、10、15、または20重量%及び/または70、55、または40重量%以下の水に非分散性の超極細繊維と、少なくとも30、45、または60重量%及び/または90、85、または80重量%以下のスルホポリエステル分散体を含み、結着剤超極細繊維を含むウェットラップを製造すること、
(g)0.5g/f未満の繊度を有し、溶解温度は該繊維の溶解温度より低い結着剤超極細繊維と複数種の他の繊維を含むウェットラップを希釈液と混合して、希釈湿式スラリーすなわち「繊維原料」を少なくとも0.001、0.005、または0.01重量%及び/または1、0.5または0.1重量パーセント以下の量で製造すること、
(h)上記繊維原料を湿式不織布工程に送って湿式不織布ウェブを製造すること、
(i)上記湿式不織布ウェブから水を除去すること、
(j)工程(i)の後で上記湿式不織布ウェブ層を熱接着することを含み、上記熱接着は上記繊維が溶融して上記結着剤超極細繊維と上記繊維を結着させずに上記結着剤超極細繊維の表面が少なくとも部分的に溶融するような温度で行って紙または不織布製品を製造すること、及び
(k)任意で不織布製品の紙にコーティングを施すことを含む。
(a)総酸残基に対して少なくとも50、60、75、または85モル%及び96、95、90、または85モル%以下の、イソフタル酸及び/またはテレフタル酸の1つ以上の残基、
(b)総酸残基に対して約4から約30モル%のソジオスルホイソフタル酸の残基、
(c)総ジオール残基に対して少なくとも25、50、70、または75モル%が、構造H−(OCH2−CH2)n−OH(nは2〜約500の範囲内の整数)を有するポリエチレングリコールである、1種以上のジオール残基、
(d)総繰り返し単位に対して0〜約20モル%の、3つ以上の官能基(官能基はヒドロキシル、カルボキシル、またはこれらの組み合わせである)を有する分岐単量体の残基を含む。
(a)多成分繊維を紡糸して所望の低いデニールにすること、
(b)これら多成分繊維中のスルホポリエステルは、多成分繊維から形成したウェブの水流交絡中は除去されないが、水流交絡後に温度を上げると効果的に除去されること、そして、
(c)安定した強度のある布を得られるように熱硬化可能な多成分繊維であること。これらの目的を推進するにあたり、所定の溶融粘度と所定のスルホ単量体残基量を有するスルホポリエステルを用いて驚くべき、かつ予想外の結果が得られた。
スルホポリエステル重合体中のスルホ単量体残基の量は、少なくとも4または5モル%及び約25、20、12、または10モル%未満であり、スルホポリエステル中の総二酸残基または総ジオール残基の百分率として報告される。本発明に用いるスルホ単量体は、好ましくは芳香環または脂環族環に結合した2つの官能基と1つ以上のスルホン酸基を有し、これら官能基はヒドロキシル、カルボキシル、またはこれらの組み合わせである。ソジオスルホイソフタル酸単量体が特に好ましい。
(1)グルタル酸(約30〜約75モル%)、テレフタル酸(約25〜約70モル%)、1,4−ブタンジオール(約90〜100モル%)、及び変性ジオール(0〜約10モル%)、
(2)コハク酸(約30〜約95モル%)、テレフタル酸(約5〜約70モル%)、1,4−ブタンジオール(約90〜100モル%)、及び変性ジオール(0〜約10モル%)、及び
(3)アジピン酸(約30〜約75モル%)、テレフタル酸(約25〜約70モル%)、1,4−ブタンジオール(約90〜100モル%)、及び変性ジオール(0〜約10モル%)。
(a)少なくとも1種の水分散性スルホポリエステルと、(b)上記スルホポリエステルに非相溶性である1種以上の水に非分散性の合成重合体を含む複数のドメインを含み、上記ドメインは、これらドメインの間に介在するスルホポリエステルによって互いに実質的に隔てられており、上記押出成型品は少なくとも約2000m/分の速度で溶融延伸することができる。
本明細書で開示した不織布の性能を以下の方法を用いて評価した。
・透過性:ASTM−D737
・ 破裂強度:ISO2758、TAPPI403(乾燥破裂試料は規格によって準備した。濡れ破裂試料の準備は、試験の前に試料を83±2℃の水道水で5分間に浸して濡らすことが含まれていた)
・乾燥引張強度:TAPPI494
・濡れ引張強度:TAPPI456をわずかに変更して試験温度を標準23±2℃から83±2℃まで上昇させた。
・空気抵抗及び浸透はTSI8130試験装置を用いてASTM−F1471−09により求めた。
実施例1
スルホポリエステル重合体を以下の二酸組成物及びジオール組成物から調製した:二酸組成物(69モル%のテレフタル酸、22.5モル%のイソフタル25酸、及び8.5モル%の5−(ソジオスルホ)イソフタル酸)、及びジオール組成物(65モル%のエチレングリコール及び35モル%のジエチレングリコール)。このスルホポリエステルを真空下、高温ポリエステル化により調製した。エステル化条件を制御して、固有粘度約0.33を有するスルホポリエステルを製造した。このスルホポリエステルの溶融粘度は、240℃、剪断速度1rad/secで測定したところ、約6000〜7000ポイズの範囲内であった。
実施例2
実施例1のスルホポリエステル重合体を二成分押出ラインを用いて海島形状の断面を有する二成分繊維に紡糸した。第1の押出機(A)からイーストマンF61 HC PETポリエステルを供給して海島断面構造の「島」を形成した。第2の押出機(B)から水分散性スルホポリエステル重合体を供給して、海島二成分繊維の「海」を形成した。このポリエステルの固有粘度は0.61dL/gであり、乾燥スルホポリエステルの溶融粘度は、前述の溶融粘度測定手順を用いて240℃、ひずみ速度1rad/secで測定して約7,000ポイズであった。「島」ポリエステルと「海」スルホポリエステルの重合体比率は2.33〜1であった。次いで、二成分繊維のフィラメントを1組の2本のゴデットローラーを用いて一列に延伸して、フィラメント延伸比率約3.3Xを得た。これにより、1フィラメントにつき公称デニールが約5.0である延伸海島二成分フィラメントを形成した。これらのフィラメントは、平均直径約2.5ミクロンであるポリエステル超極細繊維の島を含んでいた。次いで、延伸海島二成分繊維を長さ1.5ミリメータの短繊維に切断し、80℃の軟水で洗浄して水分散性スルホポリエステル「海」成分を除去した。これにより、二成分繊維の「島」成分であったポリエステル超極細繊維をばらした。洗浄したポリエステル超極細繊維を25℃の軟水で洗浄して本質的にほとんどの「海」成分を除去した。洗浄したポリエステル超極細繊維を光学顕微鏡で観察したところ、平均直径が約2.5ミクロンで、長さが1.5ミリメータであった。
実施例3
実施例1のスルホポリエステル重合体を二成分押出ラインを用いて海島形状の断面を有する二成分繊維に紡糸した。第1の押出機(A)からイーストマンF61 HC PETポリエステルを供給して海島断面構造の「島」を形成した。第2の押出機(B)から水分散性スルホポリエステル重合体を形成して海島二成分繊維の「海」を形成した。ポリエステルの固有粘度0.61dL/gであり、乾燥スルホポリエステルの溶融粘度は、前述の溶融粘度測定手順を用いて240℃、ひずみ速度1rad/secで測定して約7,000ポイズであった。「島」ポリエステルと「海」スルホポリエステルの重合体比率は2.33〜1であった。次いで、二成分繊維のフィラメントを1組の2本のゴデットローラーを用いて一列に延伸して、フィラメント延伸比率約3.3Xを得た。これらフィラメントは、平均直径約5.0ミクロンであるポリエステル超極細繊維の島を含んでいた。次いで、延伸海島二成分繊維を長さ3.0ミリメータの短繊維に切断し、80℃の軟水で洗浄して水分散性スルホポリエステル「海」成分を除去した。これにより二成分繊維の「島」成分であったポリエステル超極細繊維をばらした。洗浄したポリエステル超極細繊維を25℃の軟水で洗浄して本質的にほとんどの「海」成分を除去した。洗浄したポリエステル超極細繊維の光学顕微鏡で観察したところ、平均直径が約5.0ミクロンで、長さが3.0ミリメータであった。
実施例4
実施例2で概略を述べた一般的な手順に従い、イーストマンコポリエステルTX1000からなる直径2.5ミクロン、長さ1.5mmの重合体超極細合成繊維を調製した。
実施例5
実施例2で概略を述べた一般的な手順に従い、イーストマンコポリエステルTX1000からなる直径2.5ミクロン、長さ3.0mmの重合体超極細合成繊維を調製した。
実施例6
実施例2で概略を述べた一般的な手順に従い、イーストマンコポリエステルTX1500からなる直径2.5ミクロン、長さ1.5mmの重合体超極細合成繊維を調製した。
実施例7
実施例2で概略を述べた一般的な手順に従い、イーストマンコポリエステルEastar14285からなる直径2.5ミクロン、長さ1.5mmの重合体超極細合成繊維を調製した。
実施例8
実施例2で概略を述べた一般的な手順に従い、イーストマンコポリエステルDurastar1000からなる直径2.5ミクロン、長さ1.5mmの重合体超極細合成繊維を調製した。
実施例9
湿式手漉きシートを以下の手順を用いて調製した。手漉きシート調合中に完全な繊維の分散体を得るため、0.2パーセント以下の濃度でこの調合の各繊維を改造ブレンダーで1〜2分間撹拌して離れて分散させた。分散させた繊維を10リットルの水を入れた20リットルの混合容器に移して、5〜10分間絶えず混合した。混合容器内の繊維スラリーを、取り外し可能な200メッシュのスクリーン付きの四角い手漉きシート型に注いで、撹拌を続けながら水を半分まで充填した。手漉きシート型の容積の残りまで水を充填し、ドロップ弁を引いて繊維をメッシュスクリーン上に流し込み、手漉きシートを形成した。鋼製メッシュの底を2、3回、真空スロット上に滑らせて手漉きシートの過剰な水を除去した。次いで、湿った手漉きシートをテフロン(登録商標)で覆ったガラス繊維織りのメッシュに移し、乾燥フェルトと乾燥ドラムの間に置いた。この手漉きシートを150℃で10分間乾燥した。乾燥させた手漉きシートを移し、2枚のホットプレートの間に置いた。そこで170℃で5分間加熱して完全に結着剤繊維を活性化した。手漉きシートの物性を測定して、以下のグラフに示す。
実施例10
実施例9で概略を述べた一般的な手順に従い、実施例2の重合体超極細合成繊維を、これらの実施例で前述した結着剤合成繊維から選択した結着剤合成繊維の重量を変えて混合し、1平方メートルあたり約60グラムの手漉きシートを得た。この結着剤超極細繊維を含有する手漉きシートの組成及び特性を以下の表1に示す。
実施例11
実施例9で概略を述べた一般的な手順に従い、実施例3の重合体超極細合成繊維を、実施例6の重合体結着剤超極細合成繊維の重量を変えて混合し、1平方メートルあたり約60グラムの手漉きシートを得た。この結着剤超極細繊維を含有する手漉きシートの組成及び特性を以下の表2に示す。
実施例12
実施例9で概略を述べた一般的な手順に従い、前述した結着剤合成繊維から選択した結着剤合成繊維を、直径0.6ミクロンの超極細ガラス繊維(ジョンズ・マンビル社のマイクロストランド106X及びラウシャ・ファイバーズ・インターナショナル社のB−06−F)と異なる比率で混合し、1平方メートルあたり約60グラムの手漉きシートを得た。この結着剤超極細繊維を含有する手漉きシートの組成及び特性を以下の表3に示す。
実施例13
実施例9で概略を述べた一般的な手順に従い、前述した結着剤合成繊維から選択した結着剤合成繊維を、セルロースパルプ(ショッパーリグラー叩解度50まで叩解したアルバセル)と異なる比率で混合し、1平方メートルあたり約60グラムの手漉きシートを得た。この結着剤超極細繊維を含有する手漉きシートの組成及び特性を以下の表4に示す。
実施例14
実施例9で概略を述べた一般的な手順に従い、実施例2の繊維と同様であるが直径が4.5ミクロンである重合体超極細合成繊維を、実施例6の合成結着剤超極細繊維と1:1の比率で混合し、1平方メートルあたり約4グラムの手漉きシートを得た。この手漉きシートの乾燥引張強度(破断荷重)は117gFであり、透過率は610ft3/ft/分であった。得られた手漉きシートの走査電子顕微鏡写真を図1に示す。
2 0.9デニール×6mmのポリエステル鞘芯繊維(クラレ)で、鞘の融点が110℃
3 2デニール×6mmのポリエステル鞘芯繊維(クラレ)で、鞘の融点が130℃
4 3デニール×3mmのPVA繊維(クラレ(株))
2 0.5dtex×6mmのポリエステル鞘芯繊維(帝人)で、鞘の融点が154℃
3 3デニール×3mmのPVA繊維(クラレ)
4 −log10(P/100)/ΔP(P=浸透、及びΔPは空気抵抗)と定義する
2 3デニール×3mmのPVA繊維(クラレ)
3 SBRラテックス
実施例2で概略を述べた一般的な手順に従い、トランス−1,4−シクロヘキサンジカルボン酸と1,4−ブタンジオールの残基のコポリエステルからなる直径2.5ミクロン、長さ1.5mmの重合体超極細合成繊維を調製した。
実施例16
実施例2で概略を述べた一般的な手順に従い、Sunoco CP360Hポリプロピレンからなる直径が3.3ミクロン、長さが1.5mmの重合体超極細合成繊維を調製した。
実施例17
実施例2で概略を述べた一般的な手順に従い、95重量%のブラスケムCP360Hポリプロピレンと5重量%のクラリアントLicocene(登録商標)6252マレイン化ポリプロピレンの配合化合物からなる直径が3.3ミクロン、長さが1.5mmの重合体超極細合成繊維を調製した。
実施例18
実施例9で概略を述べた一般的な手順に従い、乾燥温度/時間を150℃で5分間に、接着温度/時間を175℃で3分間(特に断りがない限り)に変更して、前述の合成結着剤超極細繊維から選択した合成結着剤超極細繊維を10重量%、直径が0.6ミクロンのガラス超極細繊維(80重量%)と直径が7.5ミクロンで6mmに切断したガラス繊維(10重量%)と混合して、1平方メートルあたり約65グラムの手漉きシートを得た。実施例2はまた、寸法が結着剤超極細繊維と同程度だが用いた温度では軟化せず、接着しないPET超極細繊維対照として含まれた。これら結着剤繊維を含有する手漉きシートの特性を以下の表5に示す。
実施例19
実施例9で概略を述べた一般的な手順に従い、乾燥温度/時間を150℃で5分間に、接着温度/時間を175℃で3分間(特に断りがない限り)に変更して、前述の合成結着剤超極細繊維から選択した合成結着剤超極細繊維を50重量%、直径が7.5ミクロンで6mmに切断したガラス繊維と混合して、1平方メートルあたり約65グラムの手漉きシートを得た。これら結着剤繊維を含有する手漉きシートの特性を以下の表6に示す。
実施例20
実施例9で概略を述べた一般的な手順に従い、実施例2のPET(すなわち非結着剤)超極細繊維(10重量%)と、直径が0.6ミクロンのガラス超極細繊維(80重量%)と、直径が7.5ミクロンで6mmに切断したガラス繊維を混合して、1平方メートルあたり約65グラムの手漉きシートを得た。個々のシートをそれぞれ約5重量%と10重量%の追加した結着剤でSBRラテックスと接着した。表7で、これらのラテックス接着シートの相対的な強度及び透過率特性を、実施例18に記載した本発明の結着剤超極細繊維接着シートと比較する。
2 −log10(P/100)/ΔP(P=浸透、及びΔPは空気抵抗)と定義する
2 2.0デニール×5mmポリプロピレン芯/EVA鞘繊維(ミニファイバーズ社、テネシー州ジョンソンシティ)を110℃で5分間乾燥させ、120℃で5分間接着した。
3 2.0デニール×5mmポリプロピレン芯/HDPE鞘繊維 (ミニファイバーズ社、テネシー州ジョンソンシティ)を140℃で5分間乾燥させ、140℃で5分間接着した。
Claims (18)
- 不織布ウェブ層を含む紙または不織布製品であって、該不織布ウェブ層は、複数の繊維と複数の結着剤超極細繊維を含み、該結着剤超極細繊維は水に非分散性の合成重合体を含み、該結着剤超極細繊維は25ミリメータ未満の長さと0.5d/f未満の繊度を有し、該結着剤超極細繊維の溶解温度は該繊維の溶解温度より低い、紙または不織布製品。
- 該結着剤超極細繊維以外に実質的に他の結着剤が存在しない、請求項1に記載の紙または不織布製品。
- 該結着剤超極細繊維の量が該不織布ウェブ層の約5重量%から約90重量%の範囲である、請求項1に記載の紙または不織布製品。
- 該結着剤超極細繊維の量が該不織布ウェブ層の20重量%から約75重量%の範囲である、請求項3に記載の紙または不織布製品。
- 該結着剤超極細繊維は長さが10ミリメータ未満である、請求項1に記載の紙または不織布製品。
- 該結着剤超極細繊維は長さが2ミリメータ未満である、請求項1に記載の紙または不織布製品。
- 該水に非分散性の合成重合体はポリオレフィン、ポリエステル、コポリエステル、ポリアミド、ポリラクチド、ポリカプロラクトン、ポリカルボナート、ポリウレタン、アクリル、セルロースエステル、及びポリ塩化ビニルからなる群より選択される、請求項1に記載の紙または不織布製品。
- 該ポリエステルは、ポリエチレンテレフタラート単独重合体、ポリエチレンテレフタラート共重合体、ポリブチレンテレフタラート、ポリシクロヘキシレン=シクロヘキサンジカルボキシラート、ポリシクロヘキシルレンテレフタラート、及びポリトリメチルレンテレフタラートからなる群より選択される少なくとも1種である、請求項7に記載の紙または不織布製品。
- さらに液体結着剤を含む、請求項1に記載の紙または不織布製品。
- さらにコーティングを含む、請求項1に記載の紙または不織布製品。
- 該繊維はガラス、セルロース、及び合成重合体からなる群より選択される少なくとも1種である、請求項1に記載の紙または不織布製品。
- 該繊維は、セルロース繊維パルプ、無機繊維、ポリエステル繊維、ナイロン繊維、ポリオレフィン繊維、レーヨン繊維、リヨセル繊維、アクリル繊維、セルロースエステル繊維、及び再生繊維からなる群より選択される少なくとも1種である、請求項1に記載の紙または不織布製品。
- 該不織布ウェブ層は、該不織布ウェブ層の少なくとも約10重量%の量で繊維を含む、請求項1に記載の紙または不織布製品。
- 該不織布ウェブ層は、該不織布ウェブ層の少なくとも約30重量%の量で繊維を含む、請求項1に記載の紙または不織布製品。
- デンプン、充填剤、光安定剤、熱安定剤、帯電防止剤、押出し助剤、染料、偽造防止マーカー、滑り剤、強化剤、接着促進剤、酸化安定化剤、UV吸収剤、着色剤、顔料、乳白剤(艶消し剤)、光学増白剤、充填剤、造核剤、可塑化剤、粘度調整剤、表面調整剤、抗菌剤、消泡剤、潤滑剤、熱安定剤、乳化剤、殺菌剤、コールドフロー阻害剤、分岐剤、油、ワックス、及び触媒からなる群より選択される少なくとも1種の添加物をさらに含む、請求項1に記載の紙または不織布製品。
- 該結着剤繊維は、本質的に円形または本質的にくさび型の断面を有する、請求項1に記載の紙または不織布製品。
- 該結着剤繊維は、横方向アスペクト比が少なくとも2:1であるリボン状繊維である、請求項1に記載の紙または不織布製品。
- 該紙または不織布製品は、個人用ケア品、医療ケア製品、自動車製品、家庭用品、個人用リクリエーション製品、特殊紙、紙製品、及び建築・造園材からなる群より選択される、請求項1に記載の紙または不織布製品。
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EP2986776A4 (en) | 2016-11-30 |
EP2986776B1 (en) | 2019-03-06 |
US20140311694A1 (en) | 2014-10-23 |
WO2014172192A1 (en) | 2014-10-23 |
KR20150144336A (ko) | 2015-12-24 |
US9617685B2 (en) | 2017-04-11 |
JP6542752B2 (ja) | 2019-07-10 |
CN105121740B (zh) | 2020-04-17 |
EP2986776A1 (en) | 2016-02-24 |
US20140311695A1 (en) | 2014-10-23 |
CN105121740A (zh) | 2015-12-02 |
US9303357B2 (en) | 2016-04-05 |
BR112015026034A2 (pt) | 2017-07-25 |
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