JP4276288B2 - 嵩及び平滑度を有するペーパー・ウェブの製造方法 - Google Patents
嵩及び平滑度を有するペーパー・ウェブの製造方法 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
- B29C39/18—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B29C39/20—Making multilayered or multicoloured articles
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- D—TEXTILES; PAPER
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- D21F11/006—Making patterned paper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24446—Wrinkled, creased, crinkled or creped
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Description
本発明は紙構造体、特に嵩高で平滑度を有するティシュ・ペーパー・ウェブ、及び、このようなウェブを製造する方法に関する。
紙構造体(例えばトイレット・ティシュ、紙タオル、及び化粧ティシュ等)は、家庭や産業全体に広く使用されている。このようなティシュ製品を多くの消費者に好まれるようにするために多くの努力が払われてきた。
本発明は湿式ペーパー・ウェブを形成する方法を提供する。この方法は、多孔型フォーミング部材上に、第1及び第2面を有する抄紙用繊維の初期ウェブを形成する工程;第1ウェブ接触面および第2ウェブ接触面からなるウェブ対面側部を有し、第1および第2ウェブ接触面の高低差が初期ウェブの厚さ未満であるウェブ支持装置にウェブを送る工程;ウェブ濃度約10ないし60%でウェブの第1面に型模様を施す工程;ウェブの第2面の実質的全ての部分に隣接する位置にある加熱乾燥面にウェブを送る工程;及び、ウェブを加熱乾燥面から剥がす工程を有する。
図1及び図2は本発明の一つの実施例に基くペーパー・ウェブ20を示し、図3ないし図5は図1及び図2に示したタイプの紙構造体の写真である。比較のために、図6及び図7Aないし図7Cに、米国特許第4,637,859号明細書に記載されたタイプのペーパー・ウェブを示す。
図8A及び図8Bは 図1及び図2に示されたタイプの ウェブを作るのに使用するウェブ支持装置200を示している。このウェブ支持装置200は脱水フェルト層220及びウェブ型模様付け層250を有する。ウェブ支持装置200は、抄紙機にあるウェブに乾燥及び型模様付けを行うために、連続するフェルトの形にすることができる。ウェブ支持装置200は、ウェブ側を向いた第1面202、及び反対側を向いた第2面204を有する。ウェブ支持装置200は、ウェブ側を向いた第1面202が、図8Aを見ている人の方を向いている。ウェブ側を向いた第1面202は第1ウェブ接触面及び第2ウェブ接触面を有する。
本発明に基づく紙構造体20は、図9A、9B、及び図9Cに示すような抄紙装置を用いて作ることができる。図9Aを参照すれば、本発明に基づく紙構造体20を製造する方法は、抄紙用繊維をスラリーの形の水性分散液(以下水性スラリ液とも称する。)にし、抄紙用スラリーをヘッド・ボックス500から多孔型で液体透過性のフォーミング部材(例えばフォーミング・ベルト542等)の上に堆積させ、それに引き続いて、フォーミング・ベルト542に支持されている抄紙繊維543の初期ウェブを形成することによって開始される。説明簡潔化のために、フォーミング・ベルト542が単一連続型長網ワイヤーとして示されている。これは、従来公知の任意の各種ツイン・ワイヤーを使用することができることであると理解されよう。
全ての%の値は、他に示されない限り、乾燥繊維重量に基づく重量パーセントである。
この例は、図14A、B、及び、図15A乃至図15Cに示されている抄紙装置を用いて作られた3層ティシュ・ウェブを提供する。
坪量: 28.5g毎平方メートル(17.5ポンド毎平方フィート)
目視厚さ: 0.345mm(13.6ミル(0.0136インチ))
嵩密度: 0.08g/立方センチメートル
面22の表面平滑度:890
面24の表面平滑度:1070
平滑度比率: 1.20
具体例2
この例は、図14A、B、及び、15A乃至図15Cに示されている抄紙装置を用いて作られた2プライのティシュ・ウェブを提供する。
巨視的厚さ: 0.29mm(11.4ミル)
嵩密度: 0.07g/立方センチメートル
面22の表面平滑度:850
面24の表面平滑度:1006
平滑度比率: 1.18
具体例3
この例は、各プライが3層を有し、各プライが図8A、B、及び図9A乃至図9Cに示されている抄紙装置を用いて作られている2プライ・ティシュ・ペーパーを提供する。
Starch & Chemical Corp.)によって市販されているNational Starch 78‐0080)の2%水溶液が、乾燥繊維の0.2重量%の比率で、NSKの紙料パイプに加えられる。このNSKのスラリーはファン・ポンプで約0.2%に希釈される。次に、ユーカリ繊維の3重量%の水性スラリー液が、従来のリパルパーによって作り上げられる。結合抑制剤(即ち、オハイオ州、ダブリンのウィトコ社(Witco Corp.)が市販しているADO‐GEN(登録商標)442)の2%溶液が、乾燥繊維の0.1重量%の比率で、ユーカリ繊維の紙料パイプに加えられる。ユーカリのスラリーは、ファン・ポンプで、濃度約0.2%に希釈される。
脱水用フェルト層220は、ウィスコンシン州、アップルトンのアップルトン・ミルズ社(Appleton Mills)が製造しているAmfle-x2 Press Feltである。このフェルト220はポリエステル繊維のバットを有する。このバットは面がデニール3、基質デニールが10乃至15である。フェルト層220は、坪量が1436g/平方メートル、厚さが約3mm、透気度が約30乃至約40scfmである。
坪量: 15.9g毎平方メートル(9.8ポンド毎平方フィート)
目視厚さ: 0.152mm(6ミル)
嵩密度: 0.10g/立方センチメートル
面22の表面平滑度:740
面24の表面平滑度:960
平滑度比率: 1.30
具体例4
この例は図8A、8B、及び、図9A乃至図9Cに示したタイプの抄紙装置で作られるテッシュ・ウェブを提供する。
坪量: 20.5g毎平方メートル(12.6ポンド毎平方フィート)
目視厚さ: 0.22mm(8.8ミル)
嵩密度: 0.092g/立方センチメートル
面22の表面平滑度:890
面24の表面平滑度:1050
平滑度比率: 1.18
予言的な具体例
以下の予言的な例は、図8A,B及び図9A乃至図9Cに示されたタイプの商業規模の抄紙装置を用いて2プライのティシュ・ペーパーを作る方法を説明する。
Cyanamid Corp.)によって市販されているPAREZ(登録商標)750)は、乾燥繊維の0.2%の割合で、NSKの紙料パイプに加えられる。このNSKのスラリーは、ファン・ポンプで、約0.2%に希釈される。次に、ユーカリ繊維の3重量%のスラリーは、従来のリパルパーを使用して作り上げられる。結合抑制剤(即ち、オハイオ州、ダブリンのウィトコ・コーポレーション社(Witco Corp.)によって市販されているAdogen(登録商標))は、乾燥繊維の0.1%の割合で、ユーカリの原料パイプに加えられる。このユーカリのスラリーは、ファン・ポンプで、約0.2%の濃度に希釈される。
紙の特徴の厚さと高さの測定:
区域30の面23の位置、区域30の厚さ、及び、区域50の厚さは、ウェブのミクロトームされた断面の写真を用いて求めることができる。この様な写真の例は図3に示され、茲に、面23の位置は、区域50の厚さP、および、区域30の厚さKと共に示されている。
ペーパー・ウェブ面の表面平滑度は、1991年の国際ペーパー物理会議で制定されたTAPPI BOOK 1の19頁にあり、名称が『ティシュ・ペーパーの機械的特性の測定法』である章の、アンプルスキー(Ampulski)等によって説明された生理的表面平滑度(PSS)測定法に基づいて測定され、この章は参照によって本明細書に含まれる。PSS測定は、本明細書に使用されるときには、上述の章に記載されているような膨大な有用性を順次集約したものである。この測定法の手順は、スペンデル(Spendel)の米国特許第4,959,125号明細書、及び、アンプルスキー(Ampulski)等の米国特許第5,059,282号明細書にも概ね記載されており、この特許明細書は参照によって本明細書に含まれる。
坪量は次の手順に基づいて測定される。
Instrument Co.)の Model A200Sである。この秤量は12枚1束の紙の重量(グラム単位)であり、各プライは79.0cm2(12.25平方インチ)の面積を有する。
目視厚さ又は乾燥厚さは、1984年9月4日発行のトロクハン(Trokhan)の米国特許第4,469,735号明細書に開示された厚さ測定手順を用いて測定され、この特許明細書は参照によって本明細書に含まれる。
嵩密度はウェブの坪量をウェブの巨視的厚さで除した商である。
ウェブの吸収力は、既参照の米国特許第4,469,735号明細書に開示された水平吸収力試験を用いて測定される。
第1フェルト面の高さ231とウェブ接触面260の高さ261との高低差は、次の手順を用いて測定される。ウェブ支持装置は上を向いたウェブ模様付け層を有する平坦な水平面である。約1.3平方ミリメートルの円形の接触面と約3mmの垂直な長さを有する針は、ロード島,プロビテンスのフェデラル・プロダクツ・カンパニ−社(Federal Products Co.)が製造しているFederal Products寸法測定用ゲージ(EMD4320 W1ブレーク・アウェー・プローブと共に使用するように改良されたモデル432B−81増幅器)に取付けられる。この装置は、公知の高低差を提供する厚さ公知の2個の精密シムの電圧差を求めることによって校正される。この装置は、針の無制限移動を確実に行うために、第1フェルト面230より若干低い高さでゼロである。この針は測定点で約0.24グラム/平方ミリメートルの圧力を発生する。各高さで3回以上の測定が行われる。各高さの測定値は平均される。平均値の間の差は高低差を出すために計算される。
本明細書の末尾に本発明の権利を特に指摘して厳密に請求する請求の範囲を添付してあるが、本発明は、関係図面と関連させ、類似の要素に同じ符号を与えた以下の説明によって良く理解されるであろう:
Claims (2)
- 脱水フェルト層及び前記脱水フェルト層上に配置された感光性樹脂層を有し、抄紙に使用されるウェブ支持装置であって、ここで前記脱水フェルト層が、第1の高さで配置される、第1のウェブとの接触面を有し、前記感光性樹脂層が、第2の高さで配置される、第2のウェブとの接触面を有し、前記第1の高さと前記第2の高さの高低差が、0.152mm未満であると共に、前記ウェブが前記ウェブ支持装置に搬送されるときに、初期ウェブの厚さ未満の大きさであり、前記第1のウェブとの接触面の高さおよび前記第2のウェブとの接触面の高さが、1.3mm2の円形の接触面を有する針を取り付けた寸法測定用ゲージを用いて0.24g/mm2の測定点圧力で測定されるウェブ支持装置。
- 前記第1の高さと前記第2の高さの間の高低差が、0.051mm未満である、請求項1記載のウェブ支持装置。
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JP52290998A Expired - Fee Related JP4221621B2 (ja) | 1996-11-14 | 1997-11-14 | 嵩及び平滑度を有するペーパー・ウエブの製造方法 |
JP2008152379A Expired - Fee Related JP4276288B2 (ja) | 1996-11-14 | 2008-06-11 | 嵩及び平滑度を有するペーパー・ウェブの製造方法 |
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JP52290998A Expired - Fee Related JP4221621B2 (ja) | 1996-11-14 | 1997-11-14 | 嵩及び平滑度を有するペーパー・ウエブの製造方法 |
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US (1) | US5814190A (ja) |
EP (1) | EP0938611B1 (ja) |
JP (2) | JP4221621B2 (ja) |
KR (1) | KR100342018B1 (ja) |
CN (1) | CN1117902C (ja) |
AT (1) | ATE466996T1 (ja) |
AU (1) | AU741811B2 (ja) |
BR (1) | BR9713033A (ja) |
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DE (1) | DE69739871D1 (ja) |
MY (1) | MY115113A (ja) |
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ZA (1) | ZA9710012B (ja) |
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- 1996-11-14 US US08/748,872 patent/US5814190A/en not_active Expired - Lifetime
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1997
- 1997-11-06 ZA ZA9710012A patent/ZA9710012B/xx unknown
- 1997-11-07 TW TW086116650A patent/TW455639B/zh not_active IP Right Cessation
- 1997-11-11 MY MYPI97005360A patent/MY115113A/en unknown
- 1997-11-14 BR BR9713033-8A patent/BR9713033A/pt not_active Application Discontinuation
- 1997-11-14 JP JP52290998A patent/JP4221621B2/ja not_active Expired - Fee Related
- 1997-11-14 AU AU54445/98A patent/AU741811B2/en not_active Ceased
- 1997-11-14 DE DE69739871T patent/DE69739871D1/de not_active Expired - Lifetime
- 1997-11-14 EP EP97948359A patent/EP0938611B1/en not_active Expired - Lifetime
- 1997-11-14 CA CA002271863A patent/CA2271863A1/en not_active Abandoned
- 1997-11-14 KR KR1019997004211A patent/KR100342018B1/ko not_active IP Right Cessation
- 1997-11-14 AT AT97948359T patent/ATE466996T1/de not_active IP Right Cessation
- 1997-11-14 WO PCT/US1997/021062 patent/WO1998021407A1/en active IP Right Grant
- 1997-11-14 CN CN97181262A patent/CN1117902C/zh not_active Expired - Fee Related
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2008
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Also Published As
Publication number | Publication date |
---|---|
MY115113A (en) | 2003-03-31 |
CN1117902C (zh) | 2003-08-13 |
EP0938611A1 (en) | 1999-09-01 |
JP2008274540A (ja) | 2008-11-13 |
ATE466996T1 (de) | 2010-05-15 |
DE69739871D1 (de) | 2010-06-17 |
BR9713033A (pt) | 2000-04-11 |
AU741811B2 (en) | 2001-12-13 |
JP4221621B2 (ja) | 2009-02-12 |
CA2271863A1 (en) | 1998-05-22 |
AU5444598A (en) | 1998-06-03 |
JP2001504173A (ja) | 2001-03-27 |
KR100342018B1 (ko) | 2002-07-02 |
CN1244226A (zh) | 2000-02-09 |
TW455639B (en) | 2001-09-21 |
US5814190A (en) | 1998-09-29 |
EP0938611B1 (en) | 2010-05-05 |
ZA9710012B (en) | 1998-05-25 |
KR20000053234A (ko) | 2000-08-25 |
WO1998021407A1 (en) | 1998-05-22 |
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