[특허]System and process for throughdrying tissue products

System and process for throughdrying tissue products 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D21F-011/00 D21F-005/00 B28B-021/48
출원번호	US-0786955 (2010-05-25)
등록번호	US-8137505 (2012-03-20)
발명자 / 주소	Hada, Frank S. Hermans, Michael Alan Gropp, Ronald F.
출원인 / 주소	Kimberly-Clark Worldwide, Inc.
대리인 / 주소	Dority & Manning, P.A.
인용정보	피인용 횟수 : 0 인용 특허 : 48

초록 ▼

A system and process for producing tissue webs is disclosed. The tissue webs are formed from an aqueous suspension of fibers and dried using a through-air dryer. During formation of the web, the web is transferred from a transfer fabric to a throughdrying fabric and then conveyed around a drying cylinder of a through-air dryer. In accordance with the present invention, a pressurized roll emits a gaseous stream through a pressurized zone that pushes and transfers a wet web from a transfer fabric to the throughdrying fabric. The amount of pressure used during the transfer can vary depending upon the particular application and may be used to control the bulk of the web. By using a pressurized transfer roll, the amount the throughdrying fabric is wrapped around the drying cylinder of the through-air dryer can be maximized for increasing the efficiency of the system and the process.

대표청구항 ▼

1. A process for making a tissue web comprising: forming a wet tissue web by depositing an aqueous suspension of papermaking fibers onto a forming fabric;partially dewatering the wet tissue web;conveying the tissue web from a transfer fabric to a throughdrying fabric, the tissue web being contacted by a fluid stream that pushes the web from the transfer fabric to the throughdrying fabric as the web is being conveyed in between the two fabrics around a transfer roll;drying the tissue web in a throughdryer as the web is conveyed on the throughdrying fabric, the throughdryer including a drying cylinder, the throughdrying fabric and the tissue web being wrapped around the drying cylinder at least 300°, the throughdrying fabric forming an endless loop;wherein the transfer roll is positioned outside the endless loop of the throughdrying fabric, the transfer fabric and the throughdrying fabric being wrapped around the transfer roll in an overlapping relationship, the transfer roll including a pressurized zone configured to emit a gaseous stream for facilitating transfer of a paper web from the transfer fabric to the throughdrying fabric, adjacent to the transfer roll, the pressurized zone located on the transfer roll being configured to emit the gaseous stream at a pressure of from about 4 inches Hg to about 60 inches Hg; andwinding the dried web onto a parent roll, wherein the tissue web does not contact any paper machine rolls during the process prior to the step of winding the dried web onto a parent roll. 2. A process as defined in claim 1, wherein the throughdrying fabric and the tissue web are wrapped around the drying cylinder at least about 330°. 3. A process as defined in claim 1, wherein after the wet tissue is deposited onto a forming fabric, the web only contacts fabrics until being wound into a parent roll. 4. A process as defined in claim 1, wherein the dried web has a bulk of at least 6 cc/g. 5. A process as defined in claim 1, wherein the dried web has a basis weight of from about 6 gsm to about 80 gsm. 6. The process of claim 1, wherein the arc of the pressurized zone of the transfer roll is from about 5° to about 20°. 7. The process of claim 1, wherein the pressurized zone of the transfer roll is an air knife. 8. The process as defined in claim 1, wherein the transfer fabric is traveling at a speed which is at least 5% slower than the speed at which the forming fabric is traveling.

이 특허에 인용된 특허 (48)

Hada Frank Stephen ; Hermans Michael Alan ; Tomsovic Charles Robert ; Lange David V. ; Kanitz Roger A. ; Hauser Richard D. ; Murry Patrick W. ; Rounds Doug A. ; Clarke Robert L., Air press for dewatering a wet web.
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Hada Frank Stephen ; Hermans Michael Alan ; Tomsovic Charles Robert ; Lange David Vincent ; Kanitz Roger Allen ; Hauser Richard D. ; Murry Patrick William ; Rounds Doug A. ; Clarke Robert Lawrence ; , Air press for dewatering a wet web.
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Hada Frank Stephen ; Hermans Michael Alan ; Isenhart Brian Wade ; Thoms Lowell Everett ; Tomsovic Charles Robert, Air press for dewatering a wet web with pivotable arm seal.
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Hada Frank Stephen ; Hermans Michael Alan ; Isenhart Brian Wade ; Thoms Lowell Everett ; Tomsovic Charles Robert, Air press method for dewatering a wet web.
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Hada, Frank S.; Hermans, Michael Alan; Gropp, Ronald F., Apparatus for drying a tissue web.
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Joiner John R., Apparatus for drying a wet paper web.
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Motoyama Shimesu (Asaka JPX) Yamada Siuri (Kawagoe JPX) Takei Narimichi (Sugito JPX) Nagaka Koji (Saitama JPX), Apparatus for treating powdery and granular material.
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Wedel Gregory L. (Beloit WI), Dryer apparatus.
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Wedel Gregory L. (Beloit WI), Dryer apparatus for drying a web.
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Kahl Peter (Heidenheim DEX) Klein Karl-Heinz (Sontheim DEX) Grimm Helmut (Ellwangen DEX) Mueller Wolfgang (Giengen DEX), Flexibly mounted sealing strips of a vacuum roll for a web dryer.
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Prough J. Robert, Handling fibrous material used to produce cellulose pulp.
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Schmitt Arnold J. (Beloit WI) Linkletter Merle G. (Beloit WI), High bulk tissue forming and drying apparatus.
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Lomic,Stefan; Herman,Jeffrey; Scherb,Thomas Thor철e, Method and an apparatus for manufacturing and drying a fiber web provided with a three-dimensional surface structure.
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Ohls ; Per-Erik ; Soininen ; Mauri, Method and apparatus for controlling the moisture content of a web of sheet material.
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Schiel ; Christian, Method and apparatus for shrinking a travelling web of fibrous material.
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Durden Phillip R. (Merdian MS), Method and apparatus for transferring a web from a forming wire to a transferring felt in a paper making machine.
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Eskelinen Pekka (Karhula FIX) Virta Raimo (Turku FIX) Vuorinen Vesa (Turku FIX), Method and apparatus in a paper machine single-wire drying group.
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Vuorinen Vesa (Turku FIX), Method and device for drying or cooling a paper web.
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Ohls Per-Erik (Kaipola FIX) Soininen Mauri (Naantali FIX), Method for controlling the moisture content of a web of sheet material.
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Huostila Markku (Nokia FIX) Haapsaari Timo (Keski-Palokka FIX) Suokas Matti (Jyvskyl FIX) Turunen Risto (Jyvskyl FIX), Method for dewatering a tissue web.
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Hermans Michael Alan ; Burazin Mark Alan ; Hada Frank Stephen ; Hong Sung Ho, Method for making soft tissue.
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Hermans Michael Alan ; Burazin Mark Alan ; Hada Frank Stephen ; Hong Sung Ho, Method for making soft tissue.
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Michael Alan Hermans ; Frank Stephen Hada, Method for making tissue sheets on a modified conventional crescent-former tissue machine.
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Bischel Kevin H. ; Grunder Thomas K., Method for pocket ventilation and sheet support in a papermaking machine dryer section.
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Hermans Michael Alan ; Liang-Chen Shan ; Chen Fung-jou ; Druecke Frank Gerald ; Gusky Robert Irving ; Hada Frank Stephen ; Kamps Richard Joseph ; Tomsovic Charles Robert, Method of dewatering wet web using an integrally sealed air press.
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Turunen Risto (Jyvaskyla SF), Paper machine with single-wire and curved twin-wire formers.
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Trokhan Paul Dennis ; Van Phan Dean, Paper structures having at least three regions including a transition region interconnecting relatively thinner regions.
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Mller Wolfgang (Giengen DEX), Pocket sealing strip arrangement in a single-wire drying group.
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Bischel Kevin H. ; Grunder Thomas K., Pocket ventilation and sheet support system in a papermaking machine dryer section.
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Oechsle Markus (Bartholomae DEX) Guggemos Adolf (Heidenheim DEX), Process and apparatus for drying a fibrous web in a single-felt dryer group under low vacuum.
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Hermans, Michael Alan; Leitner, Charlcie Christie Kay; Hada, Frank Stephen; Gropp, Ronald Frederick; Parszewski, Marek, Process for making throughdried tissue using exhaust gas recovery.
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Wedel Gregory L., Restraint dryer for the drying end of a papermaking machine and a method thereof.
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Jewitt Dennis E.,GBX, Seal arrangement for through-air drying papermaking machine.
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Fleissner Gerold (Chur CHX), Sieve drum device with screen cover.
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Berndt Erik Ingvar Klerelid SE, Simplified through-air drying paper making machine having a twin wire forming section.
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Hada, Frank S.; Hermans, Michael Alan; Gropp, Ronald F., System and process for throughdrying tissue products.
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Guy Fredrick A. (Appleton WI) Ball Robert S. (Etobicoke CAX), System for protecting a rotary dryer from thermal stress.
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Joiner John R. (Vancouver WA), System for reducing blistering of a wet paper web on a yankee dryer.
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Hada, Frank S.; Hermans, Michael A.; Gropp, Ronald F.; Costello, Peter K., Through-air dryer assembly.
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Hada, Frank S.; Hermans, Michael A.; Gropp, Ronald F.; Costello, Peter K., Through-air dryer assembly.
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Hada,Frank S.; Hermans,Michael A.; Gropp,Ronald F.; Costello,Peter K., Through-air dryer assembly.
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Lindsay Jeffrey D. ; Kamps Richard J., Transfer of a cellulosic web between spaced apart transport means using a moving air as a support.
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Herman Jeffrey Bruce ; Trumbull John Ghordis ; Wolkowicz Richard Ignatius, Transfer system and process for making a stretchable fibrous web and article produced thereof.
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Richard Ignatius Wolkowicz ; Kenneth Kaufman, Transfer system and process for making a stretchable fibrous web and article produced thereof.
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Huostila Markku (Nokia FIX) Haapsaari Timo (Keski-Palokka FIX), Transferring a web from a pick-up fabric to a flow-through drying wire.
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Haessner Winfried (Heidenheim DEX) Wanke Wilhelm (Heidenheim DEX) Kahl Peter (Heidenheim DEX) Mller Wolfgang (Giengen DEX), Two-wire cylinder dryer.
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Whipple Rodger E. (Neenah WI), Web dryer with control of air infiltration.
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Edwards, Steven L.; Wendt, Greg A.; Marinack, Robert J.; Vander Wielen, Michael J.; McCullough, Stephen J.; McDowell, Jeffrey C.; Super, Guy H.; Worry, Gary L., Wet crepe throughdry process for making absorbent sheet and novel fibrous products.
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