[특허]Papermakers wet press felt having high contact, resilient base fabric with hollow monofilaments

Papermakers wet press felt having high contact, resilient base fabric with hollow monofilaments 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D21F-007/08
출원번호	US-0955513 (1992-10-02)
발명자 / 주소	Cunnane III Francis J. (Greer SC) Sanders H. Thomas (Isle of Palms SC)
출원인 / 주소	Asten Group, Inc. (Charleston SC 02)
인용정보	피인용 횟수 : 75 인용 특허 : 0

초록 ▼

Hollow synthetic monofilament yarns are used in the construction of a base fabric for a papermakers wet felt. The synthetic hollow monofilament yarns have selected interior void, compressibility and resiliency characteristics and are interwoven with other yarns to form a woven base fabric with the hollow monofilament yarns predominating, on at least the paper carrying side of the base fabric. The weaving and finishing of the base fabric results in the hollow monofilament yarns retaining a substantially unflattened cross-section. Accordingly, substantially unflattened portions of the hollow monofilament yarns predominate the paper carrying side of the base fabric thereby providing a cushioning surface which is compressibly resilient to assist in the dewatering of the aqueous paper web as it is transported through a press nip during the manufacture of the paper. Hollow nylon monofilament yarns having approximately 18% internal core void have been found to exhibit the desired compressibility and resiliency characteristics. Preferably a fibrous batt is needled to the base fabric to finish the wet press felt.

대표청구항 ▼

A wet press felt comprising: a base fabric having a paper carrying side; said base fabric including a system of machine direction (MD) yarns selectively interwoven with a system of cross machine direction (CMD) yarns such that said CMD yarns predominate on said paper carrying base fabric side; said CMD yarns being hollow synthetic monofilament yarns having an O-shaped cross-section and an internal core void of at least 16%, being compressible from a substantially round cross-section to a fully flattened cross-section when subjected to nip pressures of at least 200 psi, and being sufficiently resilient to rebound to an uncompressed state after passing through a press nip; and said base fabric being woven and finished such that in said finished base fabric: portions of said CMD yarns which contact said MD yarns have at least a partially flattened cross-section, and said CMD yarns remain substantially unflattened in cross-section thereby defining a cushioning surface on said paper carrying side of said base fabric which is resiliently compressible for enhancing wet press felt performance in dewatering an aqueous paper web through a press nip.

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Schulz, Galyn A., Apparatus and method for degrading a web in the machine direction while preserving cross-machine direction strength.
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Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt.
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Murray, Frank C.; Wendt, Greg A.; Edwards, Steven L.; McCullough, Stephen J.; Super, Guy H., Method of making a cellulosic absorbent sheet.
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Murray, Frank C.; Wendt, Greg A.; Edwards, Steven L.; McCullough, Stephen J.; Super, Guy H., Method of making a cellulosic absorbent sheet.
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Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a fabric-creped absorbent cellulosic sheet.
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Murray, Frank C.; Wendt, Greg A.; Edwards, Steven L.; McCullough, Stephen J.; Super, Guy H., Method of making a fabric-creped absorbent cellulosic sheet.
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Super, Guy H.; Edwards, Steven L.; McCullough, Stephen J.; Murray, Frank C., Method of making a fabric-creped absorbent cellulosic sheet.
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Super, Guy H.; Edwards, Steven L.; McCullough, Stephen J.; Murray, Frank C., Method of making a fabric-creped absorbent cellulosic sheet.
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Super, Guy H.; Edwards, Steven L.; McCullough, Stephen J.; Murray, Frank C., Method of making a fabric-creped absorbent cellulosic sheet.
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Super, Guy H.; Edwards, Steven L.; McCullough, Stephen J.; Murray, Frank C., Method of making a fabric-creped absorbent cellulosic sheet.
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Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics.
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Miller, Joseph H.; Sumnicht, Daniel W.; Bernard, Ayanna M.; Wahal, Sanjay, Method of making a multi-ply wiper/towel product with cellulosic microfibers.
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Miller, Joseph H.; Sumnicht, Daniel W.; Bernard, Ayanna M.; Wahal, Sanjay, Method of making a wiper/towel product with cellulosic microfibers.
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Miller, Joseph H.; Sumnicht, Daniel W.; Bernard, Ayanna M.; Wahal, Sanjay, Method of making a wiper/towel product with cellulosic microfibers.
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Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt.
상세보기
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt.
상세보기
Super, Guy H.; Ruthven, Paul J.; McCullough, Stephen J.; Sze, Daniel H.; Wendt, Greg A.; Miller, Joseph H., Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt.
상세보기
Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Multi-ply absorbent sheet of cellulosic fibers.
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Edwards, Steven L.; Super, Guy H.; McCullough, Stephen J.; Reeb, Ronald R.; Chou, Hung Liang; Yeh, Kang Chang; Dwiggins, John H.; Harper, Frank D., Multi-ply absorbent sheet of cellulosic fibers.
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Miller, Joseph H.; Sumnicht, Daniel W.; Oriaran, T. Philips; Schuh, Brian J.; Ramirez, Alberto J.; Lee, Jeffrey A., Multi-ply bath tissue with temporary wet strength resin and/or a particular lignin content.
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Miller, Joseph H.; Sumnicht, Daniel W.; Bernard, Ayanna M.; Wahal, Sanjay, Multi-ply wiper/towel product with cellulosic microfibers.
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Joyce Michael J., Multiaxial press fabric having shaped yarns.
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Baker Samuel (Carleton Place CAX) Harrison James (Kanata CAX), Paper machine dryer fabrics containing hollow monofilaments.
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Hodson, Mark Adrian, Papermakers dryer fabric.
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Marchand Rene (Raleigh NC), Papermakers fabric having cabled monofilament oval-shaped yarns.
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Ahrens Frederick W. ; Gulya Thomas ; Worry Gary L. ; Wright Walter P., Papermaking fabric, process for producing high bulk products and the products produced thereby.
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Francis J. Cunnane, III, Shaped yarns for use in papermaking fabrics.
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Hansen, Robert; Rydin, Bjorn, Ultra-resilient fabric and method of making thereof.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Papermakers wet press felt having high contact, resilient base fabric with hollow monofilaments 원문보기

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Papermakers wet press felt having high contact, resilient base fabric with hollow monofilaments 원문보기

초록 ▼

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이 특허를 인용한 특허 (75)

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