Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
D21F-005/00
D21F-005/18
D21F-009/00
출원번호
US-0167336
(2002-06-11)
발명자
/ 주소
Klerelid, Ingvar Berndt Erik
Ö
nnerlö
v, Lars-Erik Roland
Videgren, Leif Sö
ren
출원인 / 주소
Metso Paper Karlstad Aktiebolag (AB)
대리인 / 주소
Alston & Bird LLP
인용정보
피인용 횟수 :
10인용 특허 :
17
초록▼
A dry end section for a paper-making machine for producing a high-bulk tissue is provided. Such a machine comprises a through-air dryer adapted to finally dry a paper web and a through-air drying fabric configured to transport the web through the through-air dryer. A separating device is included fo
A dry end section for a paper-making machine for producing a high-bulk tissue is provided. Such a machine comprises a through-air dryer adapted to finally dry a paper web and a through-air drying fabric configured to transport the web through the through-air dryer. A separating device is included for facilitating separation of the web from the through-air drying fabric. A reel is also provided and is configured to receive the web thereon. The web is received directly on the separating device or on a fabric wrapped about the separating device. In some instances, the web may be compressed between the separating device and an adjacent roll or by a web-compressing device disposed along the fabric transporting the web. The web is then transported to the reel directly from the fabric or other support mechanism extending between the separating device and the reel, without free draw of the web. Associated methods are also provided.
대표청구항▼
1. A dry end section for a paper-making machine for producing a high-bulk tissue, said machine comprising: a through-air dryer adapted to finally dry a paper web; a through-air drying fabric configured to transport the web through the through-air dryer; a separating device for facilitating s
1. A dry end section for a paper-making machine for producing a high-bulk tissue, said machine comprising: a through-air dryer adapted to finally dry a paper web; a through-air drying fabric configured to transport the web through the through-air dryer; a separating device for facilitating separation of the web from the through-air drying fabric; a reel configured to receive the web; and a single permeable fabric wrapped about the separating device and extending to the reel, the single permeable fabric being configured to receive the web directly thereon from the through-air drying fabric and to transport the web directly to the reel without free draw of the web. 2. A dry end section according to claim 1 further comprising a roll disposed adjacent to the separating device so as to define a nip therebetween, the nip having the single permeable fabric passing therethrough, and to form a web-compressing device configured to compress the web before winding the web onto the reel.3. A dry end section according to claim 1 wherein the single permeable fabric is configured to support the reel so as to facilitate winding of the web onto the reel.4. A dry end section according to claim 1 further comprising a reel drum disposed adjacent to the reel so as to form a reel nip therebetween with the single permeable fabric transporting the web through the reel nip, the reel drum being configured to support the reel so as to facilitate winding of the web onto the reel.5. A dry end section according to claim 1 wherein the separating device is selected from the group consisting of a suction-configured reel drum and a suction roll.6. A dry end section according to claim 1 wherein the separating device comprises a roll having a perforated mantle and a suction device disposed within the mantle in spaced apart relation with respect thereto, the suction device being configured to selectively provide a suction zone about the mantle.7. A dry end section according to claim 6 wherein the suction device is adjustably disposed within the mantle.8. A dry end section according to claim 6 wherein the mantle defines an axis and the suction device is disposed within the mantle so as to be rotatable about the axis.9. A dry end section according to claim 1 wherein the separating device is configured to provide an adjustable suction for separating the web from the through-air drying fabric.10. A dry end section according to claim 1 further comprising an air emission arrangement disposed adjacent to the separating device and configured to facilitate separation of the web from the through-air drying fabric.11. A dry end section according to claim 1 further comprising a web-compressing device disposed between the separating device and the reel, the web-compressing device comprising a first roll disposed adjacent to the single permeable fabric opposite to the web, the web-compressing device further comprising a second roll having a press fabric wrapped thereabout, the second roll opposing the first roll so as to form a nip therebetween such that the press fabric extends through the nip, the single permeable fabric being configured to transport the web through the nip such that the web is compressed between the single permeable fabric and the press fabric before the web is received by the reel.12. A dry end section for a paper-making machine for producing a high-bulk tissue, said machine comprising: a through-air dryer adapted to finally dry a paper web; a through-air drying fabric configured to transport the web through the through-air dryer; a separating device for separating the web from the through-air drying fabric, the separating device being further configured to receive the web directly thereon; a roll disposed adjacent to the separating device so as to define a nip therebetween and to form a web-compressing device; a reel configured to receive the web; and a single fabric configured to wrap about the roll, to pass through the nip , and to extend to the reel, the single fabric being configured to receive the web thereon at the nip and to transport the web from the nip to the reel, the web being transferred directly from the single fabric to the reel without free draw of the web. 13. A dry end section according to claim 12 wherein the separating device is selected from the group consisting of a suction-configured reel drum and a suction roll.14. A dry end section according to claim 12 wherein the separating device comprises a roll having a perforated mantle and a suction device disposed within the mantle in spaced apart relation with respect thereto, the suction device being configured to selectively provide a suction zone about the mantle.15. A dry end section according to claim 14 wherein the suction device is adjustably disposed within the mantle.16. A dry end section according to claim 14 wherein the mantle defines an axis and the suction device is disposed within the mantle so as to be rotatable about the axis.17. A dry end section according to claim 14 wherein the separating device is configured to provide an adjustable suction for separating the web from the through-air drying fabric.18. A dry end section according to claim 14 further comprising an air emission arrangement disposed adjacent to the separating device and configured to facilitate separation of the web from the through-air drying fabric.19. A dry end section according to claim 14 wherein the roll is a suction roll and the single fabric is a permeable fabric.20. A dry end section according to claim 14 wherein the roll is a solid roll and the single fabric is at least one of a smooth fabric and an impermeable fabric.21. A method for making a tissue with enhanced tactile quality and facilitating reel-up of the tissue in a dry end of a tissue paper-making machine, said method comprising: finally drying a tissue web on a through-air drying fabric with a through air dryer; separating the tissue web from the through-air drying fabric with a separating device having a single permeable fabric wrapped thereabout such that the tissue web is received directly on the single permeable fabric; transporting the tissue web to a reel with the single permeable fabric; and winding the tissue web onto the reel, the tissue web being received on the reel directly from the single permeable fabric without free draw of the tissue web. 22. A method according to claim 21 wherein separating the tissue web from the through-air drying fabric further comprises separating the tissue web from the through-air drying fabric with a separating device, selected from the group consisting of a suction-configured reel drum and a suction roll, having a single permeable fabric wrapped thereabout.23. A method according to claim 21 further comprising directing the tissue web and the single permeable fabric through a web-compressing device, the web-compressing device having a nip formed between the separating device and a roll disposed adjacent thereto, prior to winding the tissue web onto the reel.24. A method according to claim 21 wherein separating the tissue web from the through-air drying fabric further comprises separating the tissue web from the through-air drying fabric with a separating device configured to apply suction to the tissue web through the single permeable fabric.25. A method according to claim 24 wherein separating the tissue web from the through-air drying fabric with a separating device configured to apply suction to the tissue web through the single permeable fabric further comprises applying a greater suction to the tissue web when the tissue web is first separated from the through-air drying fabric and then applying a lesser suction to the tissue web thereafter.26. A method for making a tissue with enhanced tactile quality and facilitating reel-up of the tissue in a dry end of a tissue paper-making machine, said method comprising: finally drying a tissue web on a through-air drying fabric w ith a through air dryer; separating the tissue web from the through-air drying fabric with a separating device such that the tissue web is received directly on the separating device; directing the tissue web through a web-compressing device having a nip formed between the separating device and a roll disposed adjacent thereto, the roll having a single fabric wrapped thereabout such that the tissue web is received on the single fabric at the nip; transporting the tissue web to a reel with the single fabric; and winding the tissue web on the reel, the tissue web being received on the reel directly from the single fabric without free draw of the tissue web. 27. A method according to claim 26 wherein separating the tissue web from the through-air drying fabric further comprises separating the tissue web from the through-air drying fabric with a separating device selected from the group consisting of a suction-configured reel drum and a suction roll.28. A method according to claim 26 wherein separating the tissue web from the through-air drying fabric further comprises separating the tissue web from the through-air drying fabric with a separating device configured to apply suction to the tissue web.29. A method according to claim 28 wherein separating the tissue web from the through-air drying fabric with a separating device configured to apply suction to the tissue web further comprises applying a greater suction to the tissue web when the tissue web is first separated from the through-air drying fabric and then applying a lesser suction to the tissue web thereafter.30. A method of making a tissue with enhanced tactile quality and facilitating reel-up of the tissue in a dry end of a tissue paper-making machine, said method comprising: finally drying a tissue web, having a basis weight of between about 10 g/m 2and about 50 g/m2, on a through-air drying fabric with a through air dryer, the web having a dry caliper of between about 0.2 mm and about 0.5 mm and, therefore, a density of between about 20 kg/m3and about 250 kg/m3; separating the tissue web from the through-air drying fabric with a separating device having a single permeable fabric wrapped thereabout such that the tissue web is received directly on the single permeable fabric; transporting the tissue web to a reel with the single permeable fabric; and winding the tissue web onto the reel, the tissue web being received on the reel directly from the single permeable fabric without free draw of the tissue web. 31. A method according to claim 30 further comprising directing the tissue web and the single permeable fabric through a web-compressing device, the web-compressing device having a nip formed between the separating device and a roll disposed adjacent thereto and configured to reduce the dry caliper of the web by between about 20% and about 50%, prior to winding the tissue web onto the reel.32. A method according to claim 30 further comprising directing the tissue web and the single permeable fabric through a web-compressing device, the web-compressing device having a nip formed between the separating device and a roll disposed adjacent thereto and configured to reduce the dry caliper of the web to between about 0.15 mm and about 0.4 mm, so as to provide a post-compression density of between about 25 kg/m3and about 333.3 kg/m3, prior to winding the tissue web onto the reel.33. A method for making a tissue with enhanced tactile quality and facilitating reel-up of the tissue in a dry end of a tissue paper-making machine, said method comprising: finally drying a tissue web, having a basis weight of between about 10 g/m 2and about 50 g/m2, on a through-air drying fabric with a through air dryer, the web having a dry caliper of between about 0.2 mm and about 0.5 mm and, therefore, a density of between about 20 kg/m3and about 250 kg/M3; separating the tissue web from the through-air drying fabric with a separating device such that the tissue web is received directly on the separating device; directing the tissue web through a web-compressing device having a nip formed between the separating device and a roll disposed adjacent thereto, the roll having a single fabric wrapped thereabout such that the tissue web is received on the single fabric at the nip; transporting the tissue web to a reel with the single fabric; and winding the tissue web on the reel, the tissue web being received on the reel directly from the single fabric without free draw of the tissue web. 34. A method according to claim 33 wherein directing the tissue web through a web-compressing device further comprises directing the tissue web through a web-compressing device so as to reduce the dry caliper of the web by between about 20% and about 50% prior to winding the tissue web onto the reel.35. A method according to claim 33 wherein directing the tissue web through a web-compressing device further comprises directing the tissue web through a web-compressing device so as to reduce the dry caliper of the web to between about 0.15 mm and about 0.4 mm, so as to provide a post-compression density of between about 25 kg/m3and about 333.3 kg/m3, prior to winding the tissue web onto the reel.
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이 특허에 인용된 특허 (17)
Ingvar Klerelid SE, Drying section for drying a paper web in a papermaking machine.
Engel Steven Alexander (Neeah WI) Rekoske Michael John (Appleton WI) Farrington ; Jr. Theodore Edwin (Appleton WI) Sudall Stephen John (Wales GBX) Williams Paul Edward (Chester GB2) Hyland David Arth, Method for making smooth uncreped throughdried sheets.
Rugowski James S. (Appleton WI) Rekoske Michael J. (Appleton WI) Lin Philip S. (Tulsa OK) Gropp Ronald F. (St. Catharines CAX) Arnold Paul A. B. L. M. (Nancy FRX), Method for making uncreped throughdried tissue products without an open draw.
Hermans, Michael Alan; Leitner, Charlcie Christie Kay; Hada, Frank Stephen; Gropp, Ronald Frederick; Parszewski, Marek, Process for making throughdried tissue using exhaust gas recovery.
Farrington ; Jr. Theodore Edwin ; Bahlman Julia Smith ; Burazin Mark Alan ; Chen Fung-jou ; Goerg Kristin Ann ; Hermans Michael Alan ; Makolin Robert John ; Rekoske Michael John, Soft tissue.
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Rouhiainen, Paul; Vander Wielen, Michael John; Marinack, Robert J.; Benson, James R., Web support and transferring a paper web between papermachine components.
Klerelid,Ingvar Berndt Erik; ?nnerl철v,Lars Erik Roland; Videgren,Leif S철ren, Method and apparatus for making a tissue paper with improved tactile qualities while improving the reel-up process for a high bulk web.
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