JP2007277784A - Seam felt for papermaking - Google Patents
Seam felt for papermaking Download PDFInfo
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- JP2007277784A JP2007277784A JP2006131921A JP2006131921A JP2007277784A JP 2007277784 A JP2007277784 A JP 2007277784A JP 2006131921 A JP2006131921 A JP 2006131921A JP 2006131921 A JP2006131921 A JP 2006131921A JP 2007277784 A JP2007277784 A JP 2007277784A
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- wet paper
- felt
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- 239000000835 fiber Substances 0.000 claims abstract description 115
- 229920001778 nylon Polymers 0.000 claims abstract description 37
- 239000004677 Nylon Substances 0.000 claims abstract description 25
- 239000000306 component Substances 0.000 claims abstract description 17
- 239000008358 core component Substances 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims description 33
- 230000006835 compression Effects 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000004744 fabric Substances 0.000 description 10
- 230000035699 permeability Effects 0.000 description 9
- 239000011162 core material Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 229920002302 Nylon 6,6 Polymers 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 6
- 229920000305 Nylon 6,10 Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000006068 polycondensation reaction Methods 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 4
- 229920000572 Nylon 6/12 Polymers 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 201000004384 Alopecia Diseases 0.000 description 3
- 229920003189 Nylon 4,6 Polymers 0.000 description 3
- 208000024963 hair loss Diseases 0.000 description 3
- 230000003676 hair loss Effects 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 229920000299 Nylon 12 Polymers 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000577 Nylon 6/66 Polymers 0.000 description 1
- 239000005700 Putrescine Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- TZYHIGCKINZLPD-UHFFFAOYSA-N azepan-2-one;hexane-1,6-diamine;hexanedioic acid Chemical compound NCCCCCCN.O=C1CCCCCN1.OC(=O)CCCCC(O)=O TZYHIGCKINZLPD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- TVIDDXQYHWJXFK-UHFFFAOYSA-L dodecanedioate(2-) Chemical compound [O-]C(=O)CCCCCCCCCCC([O-])=O TVIDDXQYHWJXFK-UHFFFAOYSA-L 0.000 description 1
- ZMUCVNSKULGPQG-UHFFFAOYSA-N dodecanedioic acid;hexane-1,6-diamine Chemical compound NCCCCCCN.OC(=O)CCCCCCCCCCC(O)=O ZMUCVNSKULGPQG-UHFFFAOYSA-N 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/10—Seams thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/083—Multi-layer felts
Landscapes
- Paper (AREA)
Abstract
Description
本発明は、抄紙用シームフェルト（以下、単に「シームフェルト」という）に関する。 The present invention relates to a papermaking seam felt (hereinafter simply referred to as “seam felt”).
近時、抄紙機械は、高速、及び高加圧であるタイプのものが主流であり、抄紙用フェルトは、高い通水性を有することが望まれている。そのため、抄紙用フェルトにおいては、基礎部分の織物構造が単糸で構成されることにより、通水性を高めたタイプのものが主流である。 In recent years, paper machines are of the high-speed and high-pressure type, and paper felts are desired to have high water permeability. For this reason, in papermaking felts, the mainstream is a type in which the water permeability is increased by forming the base fabric structure with a single yarn.
また、従来、機械上で継合わせ可能なシームフェルト（例えば、特許文献１参照。）には、バット繊維層、及び耐フロー性の材料からなるストリップを、抄紙機の布の継目部分の上方、又は近隣に設け、その結果、シームフェルトの継目部分の空気・水の透過性が、継目以外の箇所の空気・水の透過性と、実質的に同一となるようにしたものがある。 Further, conventionally, a seam felt that can be joined on a machine (see, for example, Patent Document 1) includes a vat fiber layer and a strip made of a flow-resistant material, above a seam portion of a cloth of a paper machine, Alternatively, the air / water permeability of the seam felt seam portion may be substantially the same as the air / water permeability of a portion other than the seam.
図２は、従来のシームフェルト１０’の機械方向断面図である。
シームフェルト１０’は、モノフィラメントの織布である素地布１４’を有し、継目（シーム）領域１２’が連結されることにより、機械上でエンドレス形態となる。
なお、素地布１４’は、機械方向糸１６’と、機械横断方向糸２２’からなる織布である。FIG. 2 is a cross-sectional view in the machine direction of a conventional seam felt 10 ′.
The seam felt 10 ′ has a base fabric 14 ′ that is a monofilament woven fabric, and the seam region 12 ′ is connected to be endless on the machine.
The base fabric 14 ′ is a woven fabric composed of a machine direction yarn 16 ′ and a cross machine direction yarn 22 ′.
機械方向糸１６’は、継合わせループ（シームループ）１８’を形成する。
なお、シームループ１８’は軸棒２０’の通路となり、シームループ１８’及び軸棒２０’が組合わされ、素地布１４’が連結される。The machine direction yarn 16 'forms a seam loop 18'.
The seam loop 18 'serves as a passage for the shaft rod 20', and the seam loop 18 'and the shaft rod 20' are combined to connect the base fabric 14 '.
ストリップ２４’は、その上側が０．５〜２．０インチ（１．２７〜５．０８ｃｍ）の長さで広がるように、シーム領域１２’に配置されている。なお、ストリップ２４’は、織布、不織布、又はポリマーフィルムのいずれかを用いたリボンであり、素地布１４’にニードリングによって打込まれる。また、ステープルファイバからなるバット繊維層２６’は、素地布１４’の少なくとも片面に、ニードルパンチング等の方法で設けられる。 The strip 24 'is disposed in the seam region 12' so that its upper side extends with a length of 0.5 to 2.0 inches (1.27 to 5.08 cm). The strip 24 ′ is a ribbon using any one of a woven fabric, a non-woven fabric, and a polymer film, and is driven into the base fabric 14 ′ by needling. The batt fiber layer 26 'made of staple fibers is provided on at least one surface of the base fabric 14' by a method such as needle punching.
また、素地布１４’の最下側のシームループ１８’から、バット繊維層２６’が取除かれることにより、ギャップ２８’が設けられている。
そして、バット繊維層２６’とストリップ２４’が斜めにカットされ、スリット３０’が設けられるが、ストリップ２４’により、シーム領域１２’の空気、及び水の透過性が損なわれないシームフェルト１０’を提供することができるとされている。Further, a gap 28 ′ is provided by removing the bat fiber layer 26 ′ from the lowermost seam loop 18 ′ of the base fabric 14 ′.
The batt fiber layer 26 ′ and the strip 24 ′ are cut obliquely and provided with a slit 30 ′. The strip 24 ′ does not impair the permeability of the air and water in the seam region 12 ′. Can be provided.
一方、従来、機械上で継合せる必要のない無端状（エンドレス）の抄紙用フェルトが多く使われてきた。エンドレスフェルトもシームフェルトも、抄紙用フェルトとして湿紙から水を搾る機能（搾水性）を維持するために、加圧により圧縮されたフェルトを除圧時に偏平化することなく回復させる機能（耐圧縮疲労性）や、フェルトが平滑になることにより湿紙平滑性を高める機能（平滑性）及び耐脱毛・摩耗性等も重要視されている。
このような機能を具えたフェルトとして、例えば、２成分材料よりなる芯鞘構造を有する繊維を含むプレスフェルトが特許文献２に開示されている。このプレスフェルトでは、バット層の繊維として、低融点の鞘材料と高融点の芯材料からなる２成分材料が用いられ、プレスフェルトの加熱硬化処理により低融点の鞘材料が軟化してバット層内にマトリックスが形成されることにより、プレスフェルトの脱排水性能を向上させ、しかも、圧縮抵抗力を増強させることができるとされている。On the other hand, endless papermaking felts that do not need to be joined on a machine have been widely used. Both endless felt and seam felt have the ability to recover the felt compressed by pressing without pressure flattening to maintain the ability to squeeze water from wet paper as a papermaking felt (water squeezing). (Fatigue property), a function to improve wet paper smoothness by smoothing the felt (smoothness), hair removal resistance, wear resistance, and the like are also regarded as important.
As a felt having such a function, for example, a press felt including a fiber having a core-sheath structure made of a two-component material is disclosed in Patent Document 2. In this press felt, a two-component material comprising a sheath material having a low melting point and a core material having a high melting point is used as a fiber for the bat layer, and the sheath material having a low melting point is softened by heat curing treatment of the press felt. It is said that by forming a matrix, it is possible to improve the dewatering performance of the press felt and to enhance the compression resistance.
上述のシームフェルトにスリットを設けたものの場合、シーム領域に配置されるバット繊維層からの脱毛現象を抑制するには、シーム領域に配置されるバット繊維層の接合性を維持、又は高めるためシーム領域にストリップを配置したり、樹脂を塗布したりする必要があった。そのため、必然的に、シーム領域における空気・水の透過性、及びフェルト物性（圧縮性、通水性、汚れ成分の蓄積性）を、シームフェルトにおけるシーム領域以外の部分の空気・水の透過性、及びフェルト物性と一致させるのは困難であった。 In the case where the above-mentioned seam felt is provided with a slit, in order to suppress the hair loss phenomenon from the bat fiber layer disposed in the seam region, the seam is maintained in order to maintain or enhance the bonding property of the bat fiber layer disposed in the seam region. It was necessary to place strips in the area or apply resin. Therefore, inevitably, the permeability of air and water in the seam area, and the felt physical properties (compressibility, water permeability, accumulation of dirt components), the permeability of air and water in parts other than the seam area in the seam felt, And it was difficult to match the felt physical properties.
シーム領域とシーム領域以外の部分の空気・水の透過性、及びフェルト物性が異なるシームフェルトを使用した場合、抄紙工程において、シーム領域の湿紙の地合が変化するので、湿紙の品質を損なったり、湿紙を破断したりしてしまう危険性があった。さらに、シームフェルトの耐久性、及び品質を損なうという問題もあった。 When seam felts with different air / water permeability and felt properties in the seam area and other areas than the seam area are used, the texture of the wet paper in the seam area changes during the paper making process. There was a risk of damaging or breaking the wet paper. Further, there is a problem that the durability and quality of the seam felt are impaired.
また、特許文献２の抄紙用フェルトは、プレス装置による繰返しの圧縮疲労を受け易いという問題がある。すなわち、特許文献２の抄紙用フェルトのように２成分材料をフェルトのバット繊維層に用いる場合、フェルト製造時の熱プレスの影響により、芯材料の機械的強度の低下や化学的劣化が起こり、その結果、フェルトの使用中に繊維が切断されたり、脱毛・摩耗が進み、早期に交換を必要とすることが多かった。 Further, the felt for papermaking of Patent Document 2 has a problem that it is easily subjected to repeated compression fatigue by a press device. That is, when a two-component material is used for the felt bat fiber layer as in the papermaking felt of Patent Document 2, the mechanical strength of the core material is lowered or chemically deteriorated due to the influence of the heat press during the felt production, As a result, the fibers were cut during the use of the felt, and the hair removal / wearing progressed, often requiring early replacement.
そこで、本発明は、シーム領域でのフェルト物性を他の部分と異なることがないようにしながら、シーム領域のバット繊維層の耐圧縮疲労性を高めることができ、然も平滑性・耐脱毛・摩耗性、及び搾水性に優れたシームフェルトを提供することを目的とする。 Therefore, the present invention can improve the compression fatigue resistance of the bat fiber layer in the seam region while preventing the felt physical properties in the seam region from being different from other parts. It aims at providing the seam felt excellent in abrasion property and squeezing ability.
本発明は、シーム部を有する基層と、該基層の湿紙側の表面に形成された湿紙側バット繊維層と、プレス側の表面に形成されたプレス側バット繊維層とを備え、
前記湿紙側バット繊維層が絶対粘度が８０ｍＰａ・ｓ以上である高分子量ナイロンからなる芯成分と、該芯成分よりも低融点のナイロンからなる鞘成分とから構成される芯鞘複合繊維を含み、前記芯鞘複合繊維の鞘成分が溶融して網目状繊維層が形成されている抄紙用シームフェルトにより、前記課題を解決した。
ここで、絶対粘度が８０ｍＰａ・ｓ以上とは、ナイロンを０．５ｇ／９５％硫酸１００ｍｌで溶解し、２５℃の温度で測定した絶対粘度であって、振動式粘度計で測定することができる。
前記湿紙側バット繊維層における前記芯鞘複合繊維の含有率は、２０％〜８０％であることが好ましい。
また、前記湿紙側バット繊維層を多層構造にし、前記湿紙側バット繊維層のプレス側から湿紙側に向かって、前記芯鞘複合繊維の含有量を段階的に増加させてもよい。特に前記基層の湿紙側の表面には前記芯鞘複合繊維を含まない繊維層を設けることが好ましい。The present invention comprises a base layer having a seam portion, a wet paper web batt fiber layer formed on the wet paper side surface of the base layer, and a press side batt fiber layer formed on the press side surface,
The wet-paper side batt fiber layer includes a core-sheath composite fiber composed of a core component made of high molecular weight nylon having an absolute viscosity of 80 mPa · s or more and a sheath component made of nylon having a lower melting point than the core component. The above problems have been solved by a seam felt for papermaking in which a sheath component of the core-sheath composite fiber is melted to form a network fiber layer.
Here, the absolute viscosity of 80 mPa · s or more is an absolute viscosity measured at a temperature of 25 ° C. by dissolving nylon with 100 ml of 0.5 g / 95% sulfuric acid, and can be measured with a vibration viscometer. .
The content ratio of the core-sheath composite fiber in the wet paper web batt fiber layer is preferably 20% to 80%.
The wet paper web batt fiber layer may have a multilayer structure, and the content of the core-sheath composite fiber may be increased stepwise from the press side of the wet paper web batt fiber layer toward the wet paper web. In particular, it is preferable to provide a fiber layer that does not contain the core-sheath conjugate fiber on the surface of the base layer on the wet paper web side.
本発明によれば、シーム領域とシーム領域以外の部分のフェルト物性を均一にしながら、シーム領域のバット繊維の脱毛、脱落を効果的に抑制することができる。その結果、抄紙工程において、湿紙の品質を高め、且つ、湿紙を破断させることが少なく、耐久性にもすぐれたシームフェルトを提供することができる。
また本発明によれば、芯鞘複合繊維の鞘成分が溶融して網目状繊維層が形成されて、湿紙側バット繊維層が緻密になる。その結果、プレス側層の水分は、前記湿紙側バット繊維層がバリアとなって湿紙側に移動しにくくなるため、再湿現象を抑制することができる。
また、前記芯鞘複合繊維の芯成分を高粘度にすること、すなわち高分子量ナイロンを使用することで、フェルトの耐脱毛・摩耗性及び耐圧縮疲労性が向上し、その結果、フェルトの寿命（ライフ）が延びてフェルト交換回数が減る、脱毛・摩耗による抜け毛が湿紙に付着することが少なくなり製紙品質が改善する、湿紙接触面の平滑性が維持される等の効果を奏する。ADVANTAGE OF THE INVENTION According to this invention, the hair loss of the bat fiber of a seam area | region can be effectively suppressed, making uniform the felt physical property of parts other than a seam area | region and a seam area | region. As a result, it is possible to provide a seam felt that improves the quality of the wet paper, does not break the wet paper, and has excellent durability in the paper making process.
Further, according to the present invention, the sheath component of the core-sheath composite fiber is melted to form a network fiber layer, and the wet paper web batt fiber layer becomes dense. As a result, the moisture in the press side layer is less likely to move to the wet paper side due to the wet paper side batt fiber layer serving as a barrier, so that the rewetting phenomenon can be suppressed.
Further, by making the core component of the core-sheath composite fiber highly viscous, that is, by using high molecular weight nylon, the hair removal / wear resistance and compression fatigue resistance of the felt are improved. As a result, the life of the felt ( Life) is extended, the number of felt exchanges is reduced, hair loss due to hair removal and wear is less likely to adhere to the wet paper, improving the papermaking quality, and maintaining the smoothness of the wet paper contact surface.
以下、本発明のシームフェルトについて詳しく説明する。
図１は本発明によるシームフェルト１０の機械方向（ＭＤ方向）の断面図である。
なお、「機械方向（ＭＤ）」は、抄紙機がシームフェルトを移動させる経方向であり、「機械横断方向（ＣＭＤ）」は、抄紙機がシームフェルトを移動させる方向を横切る緯方向である。
図１に示すように、シームフェルト１０は、シーム部を有する基層３０と、該基層の湿紙側の表面に形成された湿紙側バット繊維層２０と、プレス側の表面に形成されたプレス側バット繊維層２１とからなる。
基層の湿紙側の表面に形成された湿紙側バット繊維層２０と、プレス側の表面に形成されたプレス側バット繊維層２１は、ステープルファイバーから構成され、ニードルパンチングによりそれぞれ基層３０の湿紙側及びプレス側に絡合一体化されている。Hereinafter, the seam felt of the present invention will be described in detail.
FIG. 1 is a cross-sectional view in the machine direction (MD direction) of a seam felt 10 according to the present invention.
The “machine direction (MD)” is the warp direction in which the paper machine moves the seam felt, and the “machine crossing direction (CMD)” is the weft direction across the direction in which the paper machine moves the seam felt.
As shown in FIG. 1, a seam felt 10 includes a base layer 30 having a seam portion, a wet paper web batt fiber layer 20 formed on the wet paper side surface of the base layer, and a press formed on the press side surface. It consists of a side bat fiber layer 21.
The wet web side batt fiber layer 20 formed on the wet paper side surface of the base layer and the press side batt fiber layer 21 formed on the press side surface are composed of staple fibers, and each of the wet layers of the base layer 30 is formed by needle punching. The paper side and the press side are intertwined and integrated.
基層３０は、経糸（機械方向糸）３１、及び緯糸（機械横断方向糸）３２が有端状に、織機上で製織されて製造される。
ここで基層３０のシーム部について説明する。経糸３１，３１は有端状の基層３０の端部に、いわゆる、シームループ３３，３３が設けられ、シームループ３３，３３は、機械横断方向上で並ぶように揃えられる。そして、そのシームループ３３，３３に、棒状の芯線（ピントルワイヤ）３６が挿入されることにより、基層３０は、無端状のエンドレス織物となる。このような有端状の基層３０の端部にシームループが設けられ、芯線の挿入によりエンドレス織物となる部分をシーム部と言う。The base layer 30 is manufactured by weaving a warp yarn (machine direction yarn) 31 and a weft yarn (machine cross direction yarn) 32 in an end shape on a loom.
Here, the seam portion of the base layer 30 will be described. The warps 31, 31 are provided with so-called seam loops 33, 33 at the ends of the end-like base layer 30, and the seam loops 33, 33 are aligned so as to be aligned in the cross machine direction. Then, by inserting a rod-shaped core wire (pintle wire) 36 into the seam loops 33, 33, the base layer 30 becomes an endless endless fabric. A seam loop is provided at the end of the end-shaped base layer 30 and a portion that becomes an endless fabric by inserting a core wire is referred to as a seam portion.
芯線３６の上方において、シームフェルト１０の機械横断方向に沿って、湿紙側バット繊維層２０を基層３０に到るまで斜めに切断し、切目１１を設ける。
このように、湿紙側バット繊維層２０を斜めに切断し、機械方向に傾斜するように切目１１を設ける理由は、湿紙側バット繊維層２０を機械横断方向において垂直に切断した場合よりも、シーム領域１２のマークが湿紙に転写し難いためである。従って、プレス側バット繊維層の切目１１’は、垂直方向でよい。
なお、図１に示すように、切目１１を斜辺として基層３０に対して、三角形をなす部分がフラップｆである。この場合、シームフェルト１０の抄紙機械における走行方向は、図１の右から左の方向である。Above the core wire 36, along the cross-machine direction of the seam felt 10, the wet paper web-side bat fiber layer 20 is cut obliquely until reaching the base layer 30, thereby providing a cut 11.
As described above, the reason why the cut paper 11 is provided so that the wet paper side batt fiber layer 20 is cut obliquely and is inclined in the machine direction is more than the case where the wet paper side batt fiber layer 20 is cut vertically in the cross machine direction. This is because the mark in the seam region 12 is difficult to transfer to the wet paper. Therefore, the cut 11 ′ of the press-side bat fiber layer may be in the vertical direction.
In addition, as shown in FIG. 1, the part which makes a triangle with respect to the base layer 30 by making the cut 11 into a hypotenuse is the flap f. In this case, the traveling direction of the seam felt 10 in the papermaking machine is from the right to the left in FIG.
本発明のシームフェルト１０は、湿紙側バット繊維層２０に芯鞘複合繊維４１を含み、前記芯鞘複合繊維の鞘成分が熱及び／または熱プレスにより溶融して網目状繊維層が形成されて、湿紙側バット繊維層が緻密になるので、シーム領域１２の耐久性が増大する。つまりシームフェルトが抄紙機械で使用される期間、損傷を受け易いシーム領域１２のフラップｆ、切目１１、１１’からの脱毛．磨耗を著しく改善できる。 The seam felt 10 of the present invention includes a core-sheath composite fiber 41 in the wet paper web batt fiber layer 20, and the sheath component of the core-sheath composite fiber is melted by heat and / or hot press to form a network fiber layer. Thus, since the wet paper side batt fiber layer becomes dense, the durability of the seam region 12 increases. In other words, during the period when the seam felt is used in the paper machine, the hair f. Wear can be remarkably improved.
更に、本発明のシームフェルトの他の機能について説明する。
シームフェルト１０の前記芯鞘複合繊維４１が溶融して網目状繊維層が形成され、それに伴って湿紙側バット繊維層２０が緻密になり、シームフェルト１０の表面平滑性が向上する。
湿紙側バット繊維層２０が緻密になると、シームフェルト１０がニップ加圧下を脱してゆく際に、基層と、プレス側の表面に形成されたプレス側バット繊維層２１にある水分が、緻密層がバリアとなって移動しにくくなり、再湿現象が効果的に抑制され搾水性が向上する。Furthermore, other functions of the seam felt of the present invention will be described.
The core-sheath composite fiber 41 of the seam felt 10 is melted to form a network fiber layer, and the wet paper web batt fiber layer 20 becomes dense accordingly, and the surface smoothness of the seam felt 10 is improved.
When the wet paper side batt fiber layer 20 becomes dense, when the seam felt 10 is removed from the nip under pressure, the moisture in the base layer and the press side batt fiber layer 21 formed on the press side surface becomes a dense layer. As a barrier, it becomes difficult to move, the rewetting phenomenon is effectively suppressed, and the water squeezing is improved.
本発明のシームフェルト１０は、湿紙側バット繊維層２０が、温度２５℃での絶対粘度が８０ｍＰａ・ｓ以上である高分子量ナイロンからなる芯成分と、この芯成分よりも低融点のナイロンからなる鞘成分とから構成される芯鞘複合繊維４１のステープルファイバーを含み、基層３０のプレス側の表面に形成されたプレス側バット繊維層２１は、芯鞘複合繊維４１を含まない従来のナイロン繊維４２のステープルファイバーで構成される。
ここで、温度２５℃での絶対粘度が８０ｍＰａ・ｓ以上とは、ナイロンを０．５ｇ／９５％硫酸１００ｍｌで溶解し、２５℃の温度で測定した絶対粘度であり、これは振動式粘度計で測定することができる。
なお、図１では、便宜上、芯鞘複合繊維４１が誇張して示されている。In the seam felt 10 of the present invention, the wet paper side batt fiber layer 20 is composed of a core component made of high molecular weight nylon having an absolute viscosity of 80 mPa · s or more at a temperature of 25 ° C., and nylon having a lower melting point than this core component. The press-side bat fiber layer 21 formed on the press-side surface of the base layer 30 includes staple fibers of the core-sheath composite fiber 41 composed of the sheath component, and the conventional nylon fiber not including the core-sheath composite fiber 41. It is composed of 42 staple fibers.
Here, the absolute viscosity at a temperature of 25 ° C. of 80 mPa · s or more is an absolute viscosity measured at a temperature of 25 ° C. by dissolving nylon with 100 ml of 0.5 g / 95% sulfuric acid. Can be measured.
In FIG. 1, the core-sheath composite fiber 41 is exaggerated for convenience.
従来、２成分材料よりなる芯鞘構造を有する繊維を抄紙用フェルトのバット繊維層に用いる場合、芯成分の粘度、すなわち、分子量については考慮されていなかった。本発明では、芯成分を従来よりも高粘度、すなわち、高分子量ナイロンを使用し、且つ、この芯鞘複合繊維からなる層を、シームフェルトの基層の湿紙側表面上に配置することにより、前記芯鞘複合繊維の溶融した網目状繊維層が形成され、平滑性、耐脱毛・摩耗性、耐圧縮疲労性がバランスよく改善される。 Conventionally, when a fiber having a core-sheath structure made of a two-component material is used for a bat fiber layer of a papermaking felt, the viscosity of the core component, that is, the molecular weight has not been considered. In the present invention, the core component has a higher viscosity than before, i.e., high molecular weight nylon is used, and the layer made of the core-sheath composite fiber is disposed on the wet paper web side surface of the seam felt base layer. A network fiber layer in which the core-sheath composite fiber is melted is formed, and smoothness, hair removal / wear resistance, and compression fatigue resistance are improved in a well-balanced manner.
芯鞘複合繊維４１の芯成分に用いられるナイロンは、温度２５℃での絶対粘度が８０ｍＰａ・ｓ以上の高分子量ナイロンであり、且つ、鞘成分よりも融点の高いものが用いられる。芯成分のナイロンを高粘度（８０ｍＰａ・ｓ以上）にすることにより、フェルトの耐脱毛・摩耗性及び耐圧縮疲労性が向上する。これは高分子量ナイロンでは分子鎖が長くなるから、分子鎖同士の絡み合い効果による機械的特性（強度や摩擦・摩耗などの耐久性）が向上するためであると考えられる。 絶対粘度が８０ｍＰａ・ｓ未満（中粘度）のナイロンを用いた場合、耐脱毛・摩耗性及び耐圧縮疲労性の効果が十分に得られない。 The nylon used for the core component of the core-sheath composite fiber 41 is a high molecular weight nylon having an absolute viscosity of 80 mPa · s or higher at a temperature of 25 ° C., and has a higher melting point than the sheath component. By making the core component nylon have a high viscosity (80 mPa · s or more), the hair removal / wear resistance and compression fatigue resistance of the felt are improved. This is presumably because the molecular weight of the high molecular weight nylon becomes longer, so that mechanical properties (strength, durability such as friction and wear) due to the entanglement effect between the molecular chains are improved. When nylon having an absolute viscosity of less than 80 mPa · s (medium viscosity) is used, the effect of hair removal / wear resistance and compression fatigue resistance cannot be sufficiently obtained.
芯成分に好ましく用いられるナイロンとしては、高分子量ナイロン６、高分子量ナイロン６６、高分子量ナイロン４６、高分子量ナイロン６１０、高分子量ナイロン６１２等であることが好ましい。詳しくはεカプロラクタムの重合（ナイロン６）や、ヘキサメチレンジアミン・アジピン酸塩の重縮合（ナイロン６６）、１，４−ジアミノブタン・アジピン酸塩の重縮合（ナイロン４６）、ヘキサメチレンジアミン・セバシン酸塩の重縮合（ナイロン６１０）、ヘキサメチレンジアミン・ドデカン二酸塩の重縮合（ナイロン６１２）等、ナイロン塩の重縮合により得られたナイロンが好ましく、しかもＤＳＣ（示差走査熱分析計）による融点が２００℃以上である脂肪族ナイロンを挙げることができる。これらの高分子ナイロンの０．５ｇ／９５％硫酸１００ｍｌでの絶対粘度は、８０ｍＰａ・ｓ以上であることが好ましい。なお、これらの高分子量ナイロンは公知の重合方法、或いは一旦重合したナイロンフレークを、酸素を含まない１２０〜２００℃の不活性ガス雰囲気内に置いて、固相重合する方法（例えば、特表２００２−５２９６０４号）により製造されたものが用いられる。 Nylon preferably used for the core component is preferably high molecular weight nylon 6, high molecular weight nylon 66, high molecular weight nylon 46, high molecular weight nylon 610, high molecular weight nylon 612, or the like. Specifically, polymerization of ε-caprolactam (nylon 6), polycondensation of hexamethylenediamine and adipate (nylon 66), polycondensation of 1,4-diaminobutane and adipate (nylon 46), hexamethylenediamine and sebacine Nylon obtained by polycondensation of a nylon salt, such as polycondensation of an acid salt (nylon 610) or polycondensation of hexamethylenediamine / dodecanedioate (nylon 612), is preferred, and by DSC (differential scanning calorimetry) Mention may be made of aliphatic nylons having a melting point of 200 ° C. or higher. The absolute viscosity of these polymer nylons at 100 ml of 0.5 g / 95% sulfuric acid is preferably 80 mPa · s or more. These high molecular weight nylons are known polymerization methods, or a method of solid-phase polymerization in which nylon flakes once polymerized are placed in an inert gas atmosphere containing no oxygen and at 120 to 200 ° C. (for example, Special Table 2002). No. -529604) is used.
芯鞘複合繊維４１の鞘成分に用いられるナイロンは、芯成分よりも低融点のナイロンが用いられる。鞘成分に好ましく用いられるナイロンとしては、ナイロン６／１２、ナイロン６／６１０、ナイロン６６／６、ナイロン６６／１２、ナイロン６６／６１０等の二元共重合ナイロン、ナイロン６／６６／１２、ナイロン６／６６／６１０等の三元共重合ナイロンを挙げることができる。なお、これらの共重合ナイロンは組成（共重合成分の重量％）により融点が変動することは良く知られる処であるが、本発明で使用できる共重合ナイロンは、その融点が１８０℃以下のものに限られる。 The nylon used for the sheath component of the core-sheath composite fiber 41 is nylon having a lower melting point than that of the core component. As nylons preferably used for the sheath component, binary copolymer nylons such as nylon 6/12, nylon 6/610, nylon 66/6, nylon 66/12, nylon 66/610, nylon 6/66/12, nylon Mention may be made of terpolymer nylons such as 6/66/610. It is well known that the melting point of these copolymer nylons varies depending on the composition (% by weight of the copolymer component), but the copolymer nylon that can be used in the present invention has a melting point of 180 ° C. or less. Limited to.
湿紙側バット繊維層２０は、芯鞘複合繊維４１と通常のナイロン繊維４２とが一定の割合で混綿された繊維で構成されるのが好ましく、これにより平滑性・耐摩耗性・耐圧縮疲労性をよりバランスよく具えることができる。この場合、混綿の割合は、芯鞘複合繊維４１の含有率８０％〜２０％、ナイロン繊維４２の含有率２０％〜８０％とするのが好ましい。
芯鞘複合繊維４１の含有率が２０％未満の場合、湿紙側バット繊維層２０の緻密性が低くなるためフェルト表面の耐脱毛・摩耗性及び耐圧縮疲労性の効果や平滑性が悪くなり、再湿現象を抑制する効果が十分に得られない。
一方、芯鞘複合繊維４１の含有率が８０％を超えた場合は、フェルトの平滑性・耐摩耗性に優れ、再湿現象を効果的に抑制することができる反面、湿紙側バット繊維層２０が圧縮疲労しやすく、偏平化しやすい傾向になる。The wet paper side batt fiber layer 20 is preferably composed of a fiber in which the core-sheath composite fiber 41 and the normal nylon fiber 42 are blended at a constant ratio, thereby smoothness, wear resistance, and compression fatigue resistance. Can have a more balanced sex. In this case, the blended cotton ratio is preferably 80% to 20% of the core-sheath composite fiber 41 and 20% to 80% of the nylon fiber 42.
When the content of the core-sheath composite fiber 41 is less than 20%, the denseness of the wet paper side batt fiber layer 20 is lowered, and thus the effect of hair removal / wear resistance and compression fatigue resistance on the felt surface and the smoothness are deteriorated. The effect of suppressing the rewetting phenomenon cannot be sufficiently obtained.
On the other hand, when the content of the core-sheath composite fiber 41 exceeds 80%, the felt is excellent in smoothness and wear resistance, and the rewetting phenomenon can be effectively suppressed. No. 20 tends to fatigue compression and tends to flatten.
また、湿紙側バット繊維層２０を多層構造にし、該湿紙側バット繊維層２０のプレス側から湿紙側に向かって、芯鞘複合繊維４１の含有量を段階的に増加させてもよく、これにより、平滑性と耐脱毛・耐摩耗性を一層向上させることができる。
特に基層の湿紙側の表面には芯鞘複合繊維４１を含まないバット繊維層を設けることが好ましい。つまりニードルパンチングにより基層３０のシーム部に湿紙側バット繊維層２０が絡合すると、溶融した網目状繊維がシームループ３３，３３を閉塞するため芯線（ピントルワイヤ）３６の挿入が阻害される。しかし基層の湿紙側表面に芯鞘複合繊維４１を含まないバット繊維層、好ましくは坪量５０ｇ／ｍ２以上のバット繊維層を設けると、シーム部への芯鞘複合繊維４１の絡合が回避される。Further, the wet paper web batt fiber layer 20 may have a multilayer structure, and the content of the core-sheath composite fiber 41 may be increased stepwise from the press side of the wet paper web batt fiber layer 20 toward the wet paper web. Thereby, smoothness and hair removal / wear resistance can be further improved.
In particular, it is preferable to provide a batt fiber layer not including the core-sheath composite fiber 41 on the surface of the base layer on the wet paper web side. In other words, when the wet paper web batt fiber layer 20 is entangled with the seam portion of the base layer 30 by needle punching, the melted mesh fibers close the seam loops 33 and 33, thereby preventing insertion of the core wire (pintle wire) 36. However, when a batt fiber layer not containing the core-sheath composite fiber 41, preferably a batt fiber layer having a basis weight of 50 g / m 2 or more, is provided on the wet paper web side surface of the base layer, the entanglement of the core-sheath composite fiber 41 to the seam portion is avoided. Is done.
なお、芯鞘複合繊維４１の芯部と鞘部の容積比率は特に限定されないが、５：１〜１：５の範囲、好ましくは１：１である。 The volume ratio of the core portion to the sheath portion of the core-sheath composite fiber 41 is not particularly limited, but is in the range of 5: 1 to 1: 5, preferably 1: 1.
また、湿紙側バット繊維層２０、プレス側バット繊維層２１を構成するナイロン繊維４２、及び、芯鞘複合繊維４１と混綿されるナイロン繊維４２としては、ナイロン６、ナイロン６６、ナイロン４６、ナイロン６１０、ナイロン６１２等が好適である。 Further, as the nylon fiber 42 blended with the wet paper side batt fiber layer 20, the press side batt fiber layer 21, and the core-sheath composite fiber 41, nylon 6, nylon 66, nylon 46, nylon 610, nylon 612 and the like are preferable.
芯鞘複合繊維４１の繊度は、抄紙機のプレスパートの前段で使用するピックアップ用シームフェルトでは、１５〜２５デシテックス（ｄｔｅｘ）程度、また、抄紙機のプレスパートの中段で使用する２番プレスや３番プレス用のシームフェルトでは、１０〜２０デシテックス（ｄｔｅｘ）程度のものを用いるとよい。
また、抄紙機のプレスパートの後段で使用する４番プレスやシュープレス用のシームフェルトでは、５〜２０デシテックス（ｄｔｅｘ）程度のものを用いるとよい。The fineness of the core-sheath composite fiber 41 is about 15 to 25 dtex for the pick-up seam felt used in the front stage of the press part of the paper machine, and the second press used in the middle stage of the press part of the paper machine. For the seam felt for No. 3 press, it is preferable to use a seam felt of about 10 to 20 decitex (dtex).
Moreover, it is good to use about 5-20 dtex (dtex) about the 4th press used in the back | latter stage of the press part of a paper machine, or the seam felt for shoe presses.
また、ナイロン繊維４２の繊度は、抄紙機のプレスパートの前段で使用するピックアップ用シームフェルトの湿紙側バット繊維層２０には１０〜２５デシテックス（ｄｔｅｘ）程度、プレス側バット繊維層２１には１５〜２５デシテックス（ｄｔｅｘ）程度のものを用いるとよい。
また、抄紙機のプレスパートの中段で使用する２番プレスや３番プレス用のシームフェルトの湿紙側バット繊維層２０には１０〜１５デシテックス（ｄｔｅｘ）程度、プレス側バット繊維層２１には１０〜２０デシテックス（ｄｔｅｘ）程度の繊度のものを用いるとよい。
また、抄紙機のプレスパートの後段で使用する４番プレスやシュープレス用のシームフェルトの湿紙側バット繊維層２０には５〜１５デシテックス（ｄｔｅｘ）程度、プレス側バット繊維層２１には５〜２０デシテックス（ｄｔｅｘ）程度の繊度のものを用いるとよい。The fineness of the nylon fiber 42 is about 10 to 25 dtex for the wet paper side batt fiber layer 20 of the pick-up seam felt used in the front stage of the press part of the paper machine, and the press side batt fiber layer 21 has About 15 to 25 decitex (dtex) may be used.
Further, the wet paper side batt fiber layer 20 of the seam felt for No. 2 press and No. 3 press used in the middle part of the press part of the paper machine has about 10 to 15 dtex, and the press side batt fiber layer 21 has A fineness of about 10 to 20 dtex may be used.
Further, the wet paper side batt fiber layer 20 of the No. 4 press and the shoe press used for the latter part of the press part of the paper machine has a wet paper side batt fiber layer 20 of about 5 to 15 dtex, and the press side batt fiber layer 21 has 5 b. A fineness of about ˜20 decitex (dtex) may be used.
１０：抄紙用シームフェルト
１１：湿紙側バット繊維層の切目
１１’：プレス側バット繊維層の切目
１２：シーム領域
２０：湿紙側バット繊維層（芯鞘複合繊維層）
２１：プレス側バット繊維層
３０：基層
３１：経糸（機械方向糸）
３２：緯糸（機械横断方向糸）
３３：シームループ
３６：芯線
４１：芯鞘複合繊維
４２：ナイロン繊維
ｆ：フラップ10: Seam felt for papermaking 11: Cut of wet paper side batt fiber layer 11 ': Cut of press side batt fiber layer 12: Seam region 20: Wet paper side batt fiber layer (core-sheath composite fiber layer)
21: Press side batt fiber layer 30: Base layer 31: Warp (machine direction yarn)
32: Weft (cross-machine direction yarn)
33: Seam loop 36: Core wire 41: Core-sheath composite fiber 42: Nylon fiber f: Flap
Claims (3)
前記湿紙側バット繊維層が絶対粘度が８０ｍＰａ・ｓ以上である高分子量ナイロンからなる芯成分と、該芯成分よりも低融点のナイロンからなる鞘成分とから構成される芯鞘複合繊維を含み、前記芯鞘複合繊維の鞘成分が溶融して網目状繊維層が形成されていることを特徴とする、抄紙用シームフェルト。A base layer having a seam portion, a wet paper side batt fiber layer formed on the wet paper side surface of the base layer, and a press side batt fiber layer formed on the press side surface,
The wet-paper side batt fiber layer includes a core-sheath composite fiber composed of a core component made of high molecular weight nylon having an absolute viscosity of 80 mPa · s or more and a sheath component made of nylon having a lower melting point than the core component. A seam felt for papermaking, wherein the sheath component of the core-sheath composite fiber is melted to form a network fiber layer.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006131921A JP4976740B2 (en) | 2006-04-11 | 2006-04-11 | Seam felt for papermaking |
| TW096112403A TW200738934A (en) | 2006-04-11 | 2007-04-10 | Seamed felt for papermaking |
| EP07741814A EP2006444A4 (en) | 2006-04-11 | 2007-04-11 | Seamed felt for papermaking |
| US12/226,153 US20090120603A1 (en) | 2006-04-11 | 2007-04-11 | Seamed Felt for Papermaking |
| KR1020087022749A KR20080113213A (en) | 2006-04-11 | 2007-04-11 | Seamed felt for papermaking |
| CNA2007800129203A CN101421458A (en) | 2006-04-11 | 2007-04-11 | Seamed felt for papermaking |
| PCT/JP2007/058378 WO2007119856A1 (en) | 2006-04-11 | 2007-04-11 | Seamed felt for papermaking |
| CA002649264A CA2649264A1 (en) | 2006-04-11 | 2007-04-11 | Seamed felt for papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006131921A JP4976740B2 (en) | 2006-04-11 | 2006-04-11 | Seam felt for papermaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007277784A true JP2007277784A (en) | 2007-10-25 |
| JP4976740B2 JP4976740B2 (en) | 2012-07-18 |
Family
ID=38609615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006131921A Active JP4976740B2 (en) | 2006-04-11 | 2006-04-11 | Seam felt for papermaking |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20090120603A1 (en) |
| EP (1) | EP2006444A4 (en) |
| JP (1) | JP4976740B2 (en) |
| KR (1) | KR20080113213A (en) |
| CN (1) | CN101421458A (en) |
| CA (1) | CA2649264A1 (en) |
| TW (1) | TW200738934A (en) |
| WO (1) | WO2007119856A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127135A (en) * | 2007-11-20 | 2009-06-11 | Ichikawa Co Ltd | Felt for papermaking |
| JP2011162910A (en) * | 2010-02-09 | 2011-08-25 | Nippon Felt Co Ltd | Papermaking felt and method for producing the same |
| JP7314066B2 (en) | 2020-01-23 | 2023-07-25 | 日本フエルト株式会社 | Bonding core wire, bonding tool, lead wire, seam felt for papermaking, and bonding method thereof |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200060377A1 (en) * | 2017-02-03 | 2020-02-27 | Nike, Inc. | Fiber-Bound Engineered Materials Formed Using Partial Scrims |
| WO2018144125A1 (en) * | 2017-02-03 | 2018-08-09 | Nike Innovate C.V. | Fiber-bound engineered materials formed using element scrims |
| WO2018144120A1 (en) * | 2017-02-03 | 2018-08-09 | Nike Innovate C.V. | Fiber-bound engineered materials formed using foundation scrims |
| CN110431001B (en) * | 2017-02-03 | 2023-08-01 | 耐克创新有限合伙公司 | Fiber-bonded engineered materials formed using continuous mat |
| EP3576935A1 (en) * | 2017-02-03 | 2019-12-11 | Nike Innovate C.V. | Fiber-bound engineered materials formed using zonal scrims |
| WO2018144124A1 (en) | 2017-02-03 | 2018-08-09 | Nike Innovate C.V. | Fiber-bound engineered materials formed using engineered scrims |
| WO2019035853A1 (en) | 2017-08-16 | 2019-02-21 | Nike Innovate C.V. | Nonwoven textile for footwear with entangled folded edge |
| DE102021128660A1 (en) * | 2021-11-04 | 2023-05-04 | Voith Patent Gmbh | Stringing and Procedure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59112091A (en) * | 1982-11-02 | 1984-06-28 | ノルデスカフイルト・アクチエ・ボラ−ゲツト | Felt of press section of papermaking machine and production thereof |
| JPH03104995A (en) * | 1989-09-19 | 1991-05-01 | Daiwabo Co Ltd | Needle felt for paper making |
| JPH08302584A (en) * | 1995-05-04 | 1996-11-19 | Huyck Licensco Inc | Fabric for paper manufacturing with increased contact face |
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| WO2006001191A1 (en) * | 2004-06-25 | 2006-01-05 | Ichikawa Co., Ltd. | Felt for papermaking |
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| US5888915A (en) * | 1996-09-17 | 1999-03-30 | Albany International Corp. | Paper machine clothings constructed of interconnected bicomponent fibers |
| US6235390B1 (en) | 1998-11-03 | 2001-05-22 | E. I. Du Pont De Nemours And Company | High RV filaments, and apparatus and processes for making high RV flake and the filaments |
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2006
- 2006-04-11 JP JP2006131921A patent/JP4976740B2/en active Active
-
2007
- 2007-04-10 TW TW096112403A patent/TW200738934A/en unknown
- 2007-04-11 EP EP07741814A patent/EP2006444A4/en not_active Withdrawn
- 2007-04-11 KR KR1020087022749A patent/KR20080113213A/en not_active Application Discontinuation
- 2007-04-11 US US12/226,153 patent/US20090120603A1/en not_active Abandoned
- 2007-04-11 CN CNA2007800129203A patent/CN101421458A/en active Pending
- 2007-04-11 CA CA002649264A patent/CA2649264A1/en not_active Abandoned
- 2007-04-11 WO PCT/JP2007/058378 patent/WO2007119856A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59112091A (en) * | 1982-11-02 | 1984-06-28 | ノルデスカフイルト・アクチエ・ボラ−ゲツト | Felt of press section of papermaking machine and production thereof |
| JPH03104995A (en) * | 1989-09-19 | 1991-05-01 | Daiwabo Co Ltd | Needle felt for paper making |
| JPH08302584A (en) * | 1995-05-04 | 1996-11-19 | Huyck Licensco Inc | Fabric for paper manufacturing with increased contact face |
| JPH09209290A (en) * | 1996-01-29 | 1997-08-12 | Ichikawa Woolen Textile Co Ltd | Needle felt for paper-making |
| JPH11200274A (en) * | 1998-01-06 | 1999-07-27 | Ichikawa Woolen Textile Co Ltd | Felt raw material for papermaking and its production |
| JP2001055682A (en) * | 1999-08-09 | 2001-02-27 | Ichikawa Woolen Textile Co Ltd | Auxiliary tool for joining seam felt |
| JP2004512441A (en) * | 2000-10-23 | 2004-04-22 | アルバニー インターナショナル コーポレイション | Seam paper machine fabric improvement. |
| WO2006001191A1 (en) * | 2004-06-25 | 2006-01-05 | Ichikawa Co., Ltd. | Felt for papermaking |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009127135A (en) * | 2007-11-20 | 2009-06-11 | Ichikawa Co Ltd | Felt for papermaking |
| JP2011162910A (en) * | 2010-02-09 | 2011-08-25 | Nippon Felt Co Ltd | Papermaking felt and method for producing the same |
| JP7314066B2 (en) | 2020-01-23 | 2023-07-25 | 日本フエルト株式会社 | Bonding core wire, bonding tool, lead wire, seam felt for papermaking, and bonding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2649264A1 (en) | 2007-10-25 |
| CN101421458A (en) | 2009-04-29 |
| TW200738934A (en) | 2007-10-16 |
| KR20080113213A (en) | 2008-12-29 |
| JP4976740B2 (en) | 2012-07-18 |
| EP2006444A4 (en) | 2009-03-25 |
| US20090120603A1 (en) | 2009-05-14 |
| WO2007119856A1 (en) | 2007-10-25 |
| EP2006444A2 (en) | 2008-12-24 |
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