JP2008544873A - 配向フィルム交差積層物、同一物製造法及び製造装置 - Google Patents
配向フィルム交差積層物、同一物製造法及び製造装置 Download PDFInfo
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- JP2008544873A JP2008544873A JP2008510584A JP2008510584A JP2008544873A JP 2008544873 A JP2008544873 A JP 2008544873A JP 2008510584 A JP2008510584 A JP 2008510584A JP 2008510584 A JP2008510584 A JP 2008510584A JP 2008544873 A JP2008544873 A JP 2008544873A
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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.]
- Y10T428/24025—Superposed movable attached layers or components
-
- 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.]
- Y10T428/24628—Nonplanar uniform thickness material
-
- 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.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24669—Aligned or parallel nonplanarities
- Y10T428/24694—Parallel corrugations
-
- 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.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24826—Spot bonds connect components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
- Treatment Of Fiber Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
プラスチック製製品の目視効果の重要性に関しては、モダーンプラスチック(Modern Plastics)、2002年、12月号、50頁の、“外装を単に部品カバーと考える代わりに、メーカーは製品を差別化し独自化できるマーケティング手段として用いている”と述べた“目視効果はビジネスを意味する”(Visual Effects means Business)と言う記事を参考にできる。
上記のように本発明の第二の目的は審美性の改良であり、これはエンボスした交差積層プライの織物様外観により得られる。各プライは“半解繊”していると言え、交差積層物を表面的に観察すると、特に目視効果が顔料混和により強調された場合、あたかもパイル織物が本当に解繊されているように見える。又目視効果の目的で隆起部とウエブパターンを実際に可能な限り細かくすることは重要である。
a)各クレストに一つだけの延伸帯域を作り、
b)操作条件下で第一の溝付きロールと正確に同一のピッチを有し、且つ
c)第二の溝付きロールが形成する各延伸帯域が、第一の溝付きロールの1つのクレストのエッジに形成された二つの延伸帯域間に収まるか加わるように、第一の溝付きロールと正確に位置合わせする。
本発明の更なる詳細は付随図面と図面についての以下の説明に見られる。
ラミネーションロールの表面硬度とロール圧の調節で得られる、四角(101)と四角(102)との接着と、残りの四角での非接着。実施例1(図1参照)と実施例2で構築。
ラミネーションロールの表面硬度とロール圧の調節で得られる、四角(101)と四角(102)との接着と、残りの四角でのより弱い接着。実施例4で構築。
四角(101)での接着と残りの四角での非接着。これはプライAとBがそれぞれ隆起部間で幾つかの交点を含むような突起部を加熱加圧して、一つ又は両方のラミネーションロール上で適切なエンボスパターンを得るか、又はWO03/074264に開示のようにプライAとプライB上へ近接して間隔がおかれた細長い断片配列形状のラミネーション層を共押し出しすることにより得られる。実施例3で構築。
四角(101)での比較的強い接着、四角(102)でのより弱い接着及び残りの四角での類似の接着又は非接着。これは又好ましくはWO03/074264に開示の上記の共押し出し法で得られるが、この場合共押し出しフィルムは(該出願で又開示されるように)、細長い断片形状の強く接着した層と、細長い断片と共押し出しフィルムの主要層間の弱い接着の接着した連続ラミネーション層の二つのラミネーション層を含む必要がある。
実施例5に於ける、四角(101)とこれら四角に直接隣接した四角のみの接着。これは接着系3と同様の方法で得られるが、ラミネーションロール表面硬度及び/又はロール圧は四角(101)に隣接する薄いウエブを接着するように適合される。
溝付きロールの円形歯上に比較的鋭いエッジを作成する目的は、エンボスパターンを特に微細にするためである。このエンボスの精度は図8に示す歯のプロフィルにより高められる。ここでクレストは断面で分かるように平らではない凹型を有し、そのエッジはエッジ間のクレストの一部を超えて半径方向に突き出す。
ロール(112)及び(113)は例えば70から90℃に加熱され、ロール(110)はもっと低温、例えば約20℃に維持する。三つの溝付きロールは操作条件下では正確に同一ピッチ、即ち室温ではロール(112)と(113)はロール(110)のピッチより小さいピッチを有する必要がある。このローラー配置は以下のように操作する。
以下の構成の60ミクロメーター厚さの三層チューブ状フィルムを押し出す。
中間層、全体の80%;HDPEでメルトフローインデックス(m.f.i.)= 0.2、密度=0.994gml−1
外面層−ラミネーション層、全体の10%:50%アフィニティ(Affinity)8770(メタロセンでメルトフローインデックス=1.0)
内面層=全体の10%:LLDPEでメルトフローインデックス=1
ブロー比=1:1:1
長さ方向ドローダウン比=30:1
接着系は図3の記載で接着系1と呼ばれるものである。
以下の構成の約0.15mm厚さの二層チューブ状フィルムを押し出す。
主層、全体の約80%
HDPEのメルトフローインデックス(m.f.i.)=約0.2、密度=約0.95gml−1
外面層=ラミネーション層、全体の約20%:溶融開始が約95℃のエチレンコポリマー、
ブロー比=1:2:1
a) 長さ方向に延伸インフレーションチューブ状フィルムを“半解繊”し、角度45度にらせん状に切断し、次いで交差ラミネートする、
b) フィルムが“半解繊”していない以外はa)と同じ手順、
c) 手順a)のようではあるが、切断角度は本発明者が通常好む63度、
d) フィルムが“半解繊”していない以外はc)と同じ手順。
これは図3の記載で“接着系3”と呼ばれる点接着によりラミネーション工程が行われる以外、実施例2のように実施する。角度63度で切断したフィルムだけを張り合わせる。実施例2のように“半解繊”プライとの交差積層物と“非半解繊”プライとの交差積層物を比較する。
e) 長さ方向配向インフレーションチューブ状フィルムを“半解繊”し、63度にらせん状に切断し、次いで交差ラミネーションする。
f)フィルムが“半解繊”されていない以外はe)と同じ手順。
本実施例では本発明に従う非常に薄い交差積層物の製造を示し、図3の記載で“接着系2”と呼ばれる接着系を用いる。
押し出しチューブ状フィルムの厚さは0.015mmにしか過ぎない。
組成
主層、全体の60%;
HDPEの密度(d)=0.95及びメルトフローインデックス(m.f.i)= 0.2
内面層=(熱融着層)全体の20%:LLDPEのメルトフローインデックス=1.0
外面層(ラミネーション層)、85%;LLDPE(m.f.i=1.0)+15%メタロセンLLDPE(m.f.i=1.0)
この延伸後このチューブ状フィルムは実施例2と3そのままに“半解繊”し、次いで角度63度でらせん状に切断する。
本実施例ではラミネーション時のフィルム温度は不規則な収縮を避けるために70℃に過ぎない。図11の装置によるラミネーション(即ち強い接着)後、積層物を約90℃に加熱する。この工程の更なる詳細は表に見られる。製造した交差積層物は平均ゲージ19μmを有する。
本実施例では本発明に従う同様の薄い交差積層物の製造を示し、図3の記載で“接着系5”と呼ばれる接着系を用いる。
フィルム組成、押し出し条件及び“半解繊”に関しては、本実施例は実施例4と同様であるが、ラミネーションを図11の装置で実質的に収縮なしで約70℃で実施した。
積層物の最終ゲージ:19μm
薄いウエブと隆起部の大きさを顕微鏡で調べると、実施例4で見られる大きさと等しかった。
m.d.=機械方向、 t.d=横方向. d.d.=対角線方向
a)切断角度45度、非“半解繊”、平坦なラミネーションロール、最終ゲージ0.08mm
b)切断角度45度、“半解繊”、平坦なラミネーションロール、最終ゲージ0.06mm
c)切断角度63度、非“半解繊”、平坦なラミネーションロール、最終ゲージ0.08mm
d)切断角度63度、“半解繊”、平坦なラミネーションロール、最終ゲージ0.06mm
e)切断角度63度、非“半解繊”、波形ラミネーションロール、最終ゲージ0.08mm
f)切断角度63度、“半解繊”、波形ラミネーションロール、最終ゲージ0.06mm
引き裂き速度:一秒当たり15cm
改良%の計算は“半解繊”によるゲージ減少の25%が考慮された。
パーセントは記載処理段階前の延伸フィルムの大きさに対する。
収縮延伸測定の表
Claims (51)
- 少なくとも二つの配向したプライAおよびBを含む交差積層物で、それぞれのプライが熱可塑性ポリマー物質からなり、それぞれが一方向に支配的に二軸配向され、Aが一つ以上のラミネーション層を介してBに熱融着され、それにより全体が弱い接着、接着と非接着との交互パターン、或いは比較的強い接着と比較的弱い接着の交互パターンが存在し、それによりAとBそれぞれはフィルム表面に分布した約2mmより大きくない分画の直線状に並んだ隆起部を含み、それぞれが二つの隣接する隆起部の平均の体積が50%以下の体積を有するより薄い線形ウエブ(4)、(9)で一体に連結され、隆起部と隣接の薄い領域の間は該隆起部の最も厚い部分と該ウエブの最も薄い部分間のプライ厚さ平均の場所であり、それにより各隆起部の主断面部は十分一軸に配向し、Aの優先的な配向方向を達せいするが、より薄いウエブは二軸配向し、積層物領域での均一分布においてAとBのより薄い線形ウエブ領域の少なくとも50%が、接着を手による屈曲摩擦繰り返しで除去できるように接着しないか弱く接着し、且つ大部分の各隆起部と隆起部との接着が室温剥離測定による最も隣接する薄ウェブと薄ウエブとの接着で最も強力なものと少なくとも同じに強い、交差積層物。
- 接着が隆起部のみに限定されるか、又は隆起部と隆起部との接着が、隣接するより薄いウエブ間の接着より強いかのいずれかである、請求項1記載の交差積層物。
- 該接着系はそれぞれが幾つかの隆起部とより薄いウエブを含む領域に限定され、積層物の残りの領域が接着されていない、請求項2記載の交差積層物。
- より薄いウエブが全体にわたり接着されず、且つ隆起部が全体にわたり接着されるが、この隆起部と隆起部との接着が、幾つかの隆起部とより薄いウエブを含む領域内で、これらの領域外の隆起部と隆起部との接着強度より強い、請求項2記載の交差積層物。
- 隆起部Xが隆起部Yより厚い二系列の隆起部XとYがあり、これによりより薄い各ウエブ(4)が一つの隆起部Xと一つの隆起部Yに隣接し、接着が隆起部Xのみに限定されるか、または隆起部Xと隆起部Xとの接着が隆起部Yと隆起部Yとの接着より強い、請求項2又は3記載の交差積層物。
- 積層物領域全体に均一分布し、幾つかの隆起部と幾つかのより薄いウエブを含む領域内において、プライはその接着部分が繰り返し屈曲摩擦後に別々に引きはがされないほど強く接着するが、積層物AとBの残りの領域では、接着されないかまたは接着がこの処理により除去出来るほど弱く接着する、請求項1記載の交差積層物。
- 積層物が緩みを形成する非接着領域を含み、緩みの程度が隆起部とウエブ伸長部に対する垂直部から見て実際のフィルム表面に沿って計った緩み幅が、緩み境界間の直線距離より最大0.5mm、好ましくは最大0.3mm、より好ましくは最大0.2mm大きいように制限される、請求項1から6のいずれか1項記載の交差積層物。
- 該各より薄いウエブの平均厚さが隣接隆起部の最大厚さの80%以上でなく、好ましくは25から50%の間である、請求項1から7のいずれか1項記載の交差積層物。
- 隆起部の幅が約1mm以上でない、好ましくは約0.5mm以上でない、更に好ましくは約0.05から0.2mmの範囲である、請求項1から8のいずれか1項記載の交差積層物。
- それぞれの、より薄い領域の幅が二つの隣接する隆起部の最大厚さの少なくとも約50%であり、好ましくは二つの隣接する隆起部の平均幅の25%以下でない、請求項1から9のいずれか1項記載の交差積層物。
- 隆起部の一軸配向度と配向した温度が、遅い引き裂き伝播時に引き裂きが伝わる場所で、プライAとBが解繊する代わりに再配向するように制限する、請求項1から10のいずれか1項記載の交差積層物。
- 平均厚さが約0.05mm以上でない請求項1から11のいずれか1項記載の交差積層物。
- ラミネーション層がA及び/又はBへの共押し出し層である請求項1から12のいずれか1項記載の交差積層物。
- ラミネーション層が押し出しラミネーションにより適用される、請求項1から13のいずれか1項記載の交差積層物。
- A及び/又はBが主に高分子量又は中高分子量HDPE又は高分子量又は中高分子量結晶性PPからなる、請求項1から14のいずれか1項記載の交差積層物。
- AとBに、より薄いウエブ中でプライに穴を開け交差積層物を通気性にする微少空隙が与えられる、請求項1から15のいずれか1項記載の交差積層物。
- 交差積層物に微細穿孔が与えられ、好ましくはより薄いウエブに限って微細穿孔が与えられる、請求項1から16のいずれか1項記載の交差積層物。
- それぞれが熱可塑性ポリマー物質からなる少なくとも二つの配向プライAとBを含む交差積層物の製造法で、それぞれのプライを数段階で一方向に優勢に二軸配向し、Aをラミネーション層を介してBと熱融着し、それにより全体が弱い接着、接着と非接着とのパターンまたは比較的強い接着と比較的弱い接着の交互パターンを形成し、それによりAとBそれぞれはフィルム表面に分布した約2mmより大きくない分画の直線状に並んだ隆起部を含み、それぞれが二つの隣接する隆起部の平均体積が50%以下の体積を有するより薄い線形ウエブと一体に連結され、延伸操作終了により二軸配向が得られた後、隆起部と隣接の薄い領域の間は該隆起部の最も厚い部分と該ウエブの最も薄い部分間のプライ厚さ平均の場所であり、各隆起部の主断面部は十分に一軸配向され、Aの優先的な配向方向を得て、積層物領域での均一分布においてしたAとBのより薄い線形ウエブ領域の少なくとも50%が、接着が手による屈曲摩擦を繰り返すことで除去でき、且つ大部分の各隆起部と隆起部との接着が室温剥離測定による最も隣接する薄ウエブと薄ウエブとの接着で最も強力なものと少なくとも同じに強い、交差積層物製造法。
- ラミネーション前にプライAをほぼ一軸の形で全体に長さ方向に延伸する一方、プライBを通常一軸の形で全体に横方向に延伸し、プライAを好ましくは円形溝を有するか又はロール半径に比べ低ピッチのらせん形溝を有するインターメッシュ溝付きロール間で部分的に横方向に延伸し、プライBを好ましくは軸又は僅かにらせん形状に延びる溝を有するインターメッシュ溝付きロール間で部分的に長さ方向に延伸し、AとBの該部分延伸をプライ全体の延伸前又は以後、又はプライ全体の延伸の二段階の間に行い、任意にプライA及び/又はBをラミネーション前に熱的に安定化する、請求項18記載の方法。
- ラミネーションの前に、チューブ形又はインフレーションチューブ形のプライAとBのそれぞれを、通常一軸の形で長さ方向に延伸し、インフレーションチューブ形プライをロール半径に比べ低ピッチの好ましくは円形溝を有するか又はらせん形溝を有するインターメッシュ溝付きロール間で部分的に横方向に延伸し、該部分延伸を全体延伸前、後又は全体の延伸の二段階の間に行い、延伸段階終了後任意にプライA及び/又はプライBを熱的に安定化し、次いでプライAとBをらせん状に切断して主配向方向がその長さ方向と角度を持つウエブを形成し、最後にAとBの主配向方向が互いに角度を持つように連続的にAとBのラミネーションを実施する、請求項18記載の方法。
- より薄い直線状のウエブがプライの長さ方向又は横方向へプライの部分延伸を行うインターメッシュ溝付きロールにより作成され、ロール溝表面の各クレストがプライのより薄い該直線状ウエブ生成に十分な鋭い二つのエッジを有する、請求項18、19及び20のいずれか1項記載の方法。
- 二つの該エッジがプライと溝付きロール間の接触をクレストエッジ部分に限るように突き出る、請求項21記載の方法。
- 溝付きロールを好ましくは約60から80℃に加熱し、ウエブをより低い温度、例えば20から45℃でこのロールに供給して溝付きロールクレストエッジ部分上のプライを選択的に加熱する、請求項22記載の方法。
- 溝付きロールのピッチが5mm以下、好ましくは約0.8から1.2mmの間であり、クレストの二つの該エッジの相互間距離が好ましくは約0.3から0.5mmの間であり、鋭いエッジの曲率半径が好ましくは20から50μmの範囲である、請求項21,22及び23のいずれか1項記載の方法。
- 部分延伸が第一の円形溝付きロール間での横方向の延伸であり、この部分延伸前か以後にプライを第二の円形溝付きロール間で第二の部分延伸にかけることを含み、該第二の溝付きロールが
a)各クレストに一つだけの延伸区域を作り、
b)操作条件下で第一溝付きロールと全く同じピッチを有し、
c)第二溝付きロールが第一溝付きロールの一つのクレストのエッジに形成の二つの延伸区域間に収まるか、又は連結するように第一溝付きロールと正確に位置合わせする、
請求項21から24のいずれか1項記載の方法。 - 各点又は直線状領域内でAとBのいずれかが互いに全体にわたり均一に接着するか、又は隆起部/より薄いウエブパターンに対応して、接着/非接着又は強い接着/弱い接着パターンに互いに全体にわたって接着する一方、積層物の残りの領域が非接着であるか又は20℃での剥離試験に基づく点又は直線状領域内での平均接着より弱く接着するように、ラミネーション装置、ラミネーション圧力及びラミネーション温度を点又は線形領域で接着が生じるように用いる、請求項18から25のいずれか1項記載の方法。
- 一つ又は複数の該接着層をA及び/又はBに共押し出しする、請求項18から26のいずれか1項記載の方法。
- 該接着層が押し出しラミネーションプロセスにより適用される、請求項18から26のいずれか1項記載の方法。
- ラミネーション層をプライAとプライBに一列に近接した間隔をおかれた並ぶ密集した細長い断片形に共押し出しし、任意に該断片とプライ残部の間に第二の連続ラミネーション層と共に共押し出しすることで、点又は直線状領域の接着パターンを得、それにより最終積層物でA断片がB断片と角度を持つ一方、ラミネーション装置を用いてプライを全体にほぼ均一な温度でラミネートし、各点又は直線状領域内でAとBのいずれかが互いに全体にわたり均一に接着するか、又は隆起部/より薄いウエブパターンに相応して、接着/非接着又は強い接着/弱い接着パターンに接着する一方、ラミネートの残りの領域が非接着であるか又は20℃での剥離試験に基づく該点又は直線状領域内での平均接着より弱く接着するように、一つ又は複数の該ラミネーション層、ラミネーション温度及びラミネーション圧力が適用される、請求項27記載の方法。
- 一軸配向を行う温度で、隆起部での一軸配向度が、最終交差積層物の遅い引き裂き伝播時にプライAとBのそれぞれが、引き裂きが伝わる場所で解繊する代わりに再配向するように制限する、請求項18から29のいずれか1項記載の方法。
- 加熱ラミネーション時又は以後に、積層物を主配向方向の少なくとも一つに沿って収縮させるかまたは収縮を許容する、請求項18から30のいずれか1項記載の方法。
- 延伸段階とラミネーション段階の間でAとBのより薄いウエブを熱風加熱により選択的に安定化し、隆起部を冷却表面と接触してより低い温度を維持し、安定化が、該収縮時に緩みを生ずるかまたは強めるように、例えばウエブが加熱中に一部溶融する程度に行う、請求項31記載の方法。
- 熱風で加熱し、積層部を冷却ロールと接触して積層物の残りの領域を冷却して、積層物に生じた緩みを除く、請求項18から31のいずれか1項記載の方法。
- プライA及び/又はプライBに適切な粉末を混合するか及び/又は延伸段階の条件選択により内部微少空隙を与えることを含み、空隙により、より薄いウエブに孔を開け交差積層物を通気性にする程度に与えられる、請求項18から33のいずれか1項記載の方法。
- プライA及び/又はプライBが主として高分子量又は中高分子量のHDPE又はPPからなり、一つ又は複数の該プライ隆起部方向の大部分の固相での配向を50℃付近又はより低い温度で実施する、請求項18から34のいずれか1項記載の方法。
- 微細穿孔を持つ積層物を供給する、請求項18から35のいずれか1項記載の方法。
- 接着層が溶融範囲が大きく異なる二種以上の相溶性ポリマーブレンドとして選択され、該ブレンドポリマーのより低い溶融が各プライ主要部で生ずる配向を妨げない温度で溶融を開始し、ブレンド比とラミネーション温度を層剥離抵抗と引き裂き伝播抵抗の間の望ましいバランスが得られるように選択する、請求項18から36のいずれか1項記載の方法。
- 一つ以上の段階で融点範囲以下で熱可塑性ポリマー物質からなるフィルムを、延伸前又は以後或いはこれの二つの段階の間に、各ロール半径に比べ低ピッチの円形溝又はらせん状溝を有するインターメッシュ溝付きロール間でこのフィルムを部分的に横方向に延伸し、ほぼ一軸方向で長さ方向に延伸する方法で、溝付きロール溝表面の各クレストが二つのエッジを有し、そのエッジがプライ中のより薄いウエブ材の一つの直線状部分を延伸することにより生成するのに十分鋭い、フィルムの長さ方向の延伸方法。
- プライと溝付きロール間の接触をクレストのエッジ部分に限定するために、2つのエッジが突き出ている、請求項38記載の方法。
- 溝付きロールを例えば約60から80℃に加熱し、ウエブをより低い温度、例えば約20から45℃でこのロールに導入して、溝付きロールのクレストエッジ部分上のプライを選択的に加熱する、請求項39記載の方法。
- 溝付きロールのピッチが5mm以下、好ましくは約0.8から1.2mmの間であり、クレストの二つの該エッジの相互間距離が好ましくは約0.3から0.5mmの間であり、鋭いエッジの曲率半径が好ましくは20から50μmの範囲である、請求項38,39及び40のいずれか1項記載の方法。
- 部分延伸が第一の円形溝付きロール間で横方向に延伸する方法で、この部分延伸前または後にプライを第二の円形溝付きロール間で第二の部分延伸にかけ、該第二の溝付きロールが、
a)各クレストに一つだけの延伸区域を作り、
b)操作条件下で第一の溝付きロールと全く同じピッチを有し、
c)第二の溝付きロールにより形成された延伸区域が第一の溝付きロールの一つのクレストびエッジに形成された二つの延伸区域間に収まるか又はそれと連結するように、第一の溝付きロールと正確に位置合わせをする、
請求項38から41のいずれか1項記載の方法。 - 機械方向にほぼ直角な方向に材料を延伸するための、円形溝又はらせん形溝を有する一対のインターメッシング延伸溝付きロールを含む熱可塑性プライの部分的横方向の延伸装置であって、延伸溝付きロールの少なくとも一つの溝表面の各クレストが二つの鋭いエッジを有し、その上でプライが延伸される、部分的横方向の延伸装置
- 両方のインターメッシング延伸溝付きロールのクレストが二つの鋭いエッジを有する、請求項43記載の装置。
- 二つのエッジが突き出ている請求項43又は44記載の装置。
- 延伸ロールを好ましくは表面温度約60から80℃に加熱する請求項43又は44記載の装置。
- 延伸溝付きロールのピッチが0.8から1.2mmの範囲であり、クレストの二つの該エッジ間の距離が0.3から0.5mmの範囲である、請求項43から46のいずれか記載の装置。
- 一対の第二の横方向の延伸インターメッシュ溝付きロールをさらに含み、各クレストに単一延伸帯域を作り、操作条件下で一対の第一の溝付きロールの溝と全く同一ピッチを有し、一対の第二の延伸溝付きロールを通るプライの延伸帯域が、一対の第一の溝付きロールにプライの通過により形成される延伸帯域間に収まるか、又はそれと連結するように、一対の第一の延伸溝付きロールと正確に位置合わせする、請求項43からから47のいずれか1項記載の装置。
- 各ロールが少なくとも長さ1mから好ましくは長さ3m迄であり、各溝付きロールが同軸に取り付けられたサブロールから形成される、請求項43から54のいずれか1項記載の装置。
- 鋭いエッジが電解研摩工程を含む方法で処理される、請求項43から49のいずれか1項記載の装置。
- 鋭いエッジが曲率半径約20から50μmの範囲である、請求項43から50のいずれか1項記載の装置。
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GB0511394A GB0511394D0 (en) | 2005-06-03 | 2005-06-03 | Crosslaminate of oriented films and methods and apparatus for manufacturing same |
PCT/EP2006/000281 WO2006072604A2 (en) | 2005-01-07 | 2006-01-05 | Laminate of thermoplastic film materials exhibiting throughgoing porosity |
EPPCT/EP2006/000281 | 2006-01-05 | ||
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- 2006-05-11 RU RU2007145716/12A patent/RU2490126C2/ru not_active IP Right Cessation
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- 2006-05-11 US US11/920,187 patent/US8263210B2/en active Active
- 2006-05-11 WO PCT/EP2006/062260 patent/WO2006120238A2/en active Application Filing
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- 2006-05-11 CN CN201010166757A patent/CN101837638A/zh active Pending
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- 2006-05-11 MX MX2007013901A patent/MX2007013901A/es active IP Right Grant
- 2006-05-11 KR KR20077028954A patent/KR20080012351A/ko not_active Application Discontinuation
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- 2006-05-11 JP JP2008510584A patent/JP6085074B2/ja not_active Expired - Fee Related
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- 2008-08-01 HK HK08108526A patent/HK1117796A1/xx not_active IP Right Cessation
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- 2012-06-13 US US13/517,517 patent/US9090018B2/en not_active Expired - Fee Related
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Also Published As
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CN101837638A (zh) | 2010-09-22 |
EP1885546B1 (en) | 2013-03-13 |
BRPI0611230A2 (pt) | 2011-02-22 |
WO2006120238A3 (en) | 2006-12-28 |
CN101203372B (zh) | 2010-06-16 |
NZ587884A (en) | 2012-04-27 |
JP6085074B2 (ja) | 2017-02-22 |
US20090233041A1 (en) | 2009-09-17 |
EP1885546A2 (en) | 2008-02-13 |
CA2607835C (en) | 2014-04-15 |
RU2490126C2 (ru) | 2013-08-20 |
AU2006245742B2 (en) | 2012-03-15 |
KR20080012351A (ko) | 2008-02-11 |
NZ563704A (en) | 2010-11-26 |
RU2007145716A (ru) | 2009-06-20 |
CA2607835A1 (en) | 2006-11-16 |
BRPI0611230B1 (pt) | 2017-02-21 |
US20120292819A1 (en) | 2012-11-22 |
IL186990A (en) | 2011-02-28 |
CN101203372A (zh) | 2008-06-18 |
IL186990A0 (en) | 2008-02-09 |
WO2006120238A2 (en) | 2006-11-16 |
EP2508324A1 (en) | 2012-10-10 |
MX2007013901A (es) | 2008-01-16 |
BR122016029567B1 (pt) | 2018-01-23 |
AU2006245742A1 (en) | 2006-11-16 |
ES2411680T3 (es) | 2013-07-08 |
US9090018B2 (en) | 2015-07-28 |
HK1117796A1 (en) | 2009-01-23 |
US8263210B2 (en) | 2012-09-11 |
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