CN1077636C - Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine - Google Patents

Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine Download PDF

Info

Publication number
CN1077636C
CN1077636C CN97198079A CN97198079A CN1077636C CN 1077636 C CN1077636 C CN 1077636C CN 97198079 A CN97198079 A CN 97198079A CN 97198079 A CN97198079 A CN 97198079A CN 1077636 C CN1077636 C CN 1077636C
Authority
CN
China
Prior art keywords
paper web
rear portion
drying cylinder
cylinder
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN97198079A
Other languages
Chinese (zh)
Other versions
CN1231006A (en
Inventor
考科·安特罗·厄斯特曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Valmet Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of CN1231006A publication Critical patent/CN1231006A/en
Application granted granted Critical
Publication of CN1077636C publication Critical patent/CN1077636C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00Dryer section of machines for making continuous webs of paper
    • D21F5/02Drying on cylinders
    • D21F5/04Drying on cylinders on two or more drying cylinders
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00Other accessories for paper-making machines
    • D21G9/009Apparatus for glaze-coating paper webs

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention concerns a method for drying a surface-treated paper web or equivalent in an after-dryer of a paper machine, in which method the paper web (W) is first finished in a finishing section, in which finishing section the paper web (W) is surface-sized or coated by means of a finishing device (10), after which the paper web (W) is dried. In the after-dryer the paper web (W) is dried in a dryer group/groups making use of a normal single-wire draw, and, in connection with or after the drying, the paper web (W) is treated by means of a device/devices (192, 191, 201, 202) in order to compensate for a tendency of curling of the paper web (W). Further, the invention concerns an after-dryer for a paper machine for applying the method to the drying of a surface-treated paper web or equivalent, which after-dryer is placed after the finishing device (10), by means of which finishing device (10) the paper web (W) is surface-sized or coated. The after-dryer comprises at least one dryer group that applies a normal single-wire draw so as to dry the paper web (W) and a device/devices (191, 192, 201, 202) for compensating for a tendency of curling of the paper web (W).

Description

Method and rear portion drying cylinder at paper machine rear portion drying cylinder oven dry surface-treated paper web
The present invention relates to a kind of paper web drying surface-treated in the drying cylinder of the rear portion of paper machine or the method for analog, in the method, paper web at first in a finishing workshop section by ornamenting, in this finishing workshop section, paper web by an ornamenting device with its top sizing or coating, after this, paper web is dried.
The invention still further relates to a kind of rear portion drying cylinder of implementing the paper machine of the inventive method, in order to drying surface-treated paper web or analog, this rear portion drying cylinder is arranged on after the ornamenting device, and paper web carries out top sizing or coating by this ornamenting device to it.
In the prior art, in the multi-cylinder baker of paper machine, adopt two net tractions and/or single net traction.In the traction of two nets, cylinder group has two nets, and one of them pushes paper web from the top, and another pushes paper web from the below, and it is pressed on the surface of cylinder of heating.Drying cylinder is normally horizontal, and between each row of drying cylinder, paper web is subjected to unsupported freely traction, makes paper web be easy to produce chatter, and then is easy to damage, and particularly works as paper web and remains wetter relatively, and is when intensity is relatively poor, easier to be like this.Why Here it is uses described single net traction in recent years more and more, in single net traction, each group drying cylinder only comprises an oven dry net, support paper web thereon by whole cylinder group, the oven dry net is being squeezed in paper web on the heating cylinder surfaces on the drying cylinder, and on reverse cylinder between the cylinder group or roller, keeps the camber line of paper web in its outside.Therefore, in single net traction, drying cylinder is arranged in the outside in net loop, and reverse cylinder or roller are arranged in the inboard in described net loop.
As can be known, in the standard group of so-called single net traction, the cylinder group of heating is arranged on row from prior art, and reverse cylinder is arranged on down row, and that these are arranged is normally horizontally disposed and parallel each other.On the other hand, in reverse group of single net traction, oppositely cylinder is arranged on row, and drying cylinder is arranged on down row.In the following description, when using term " standard (drying cylinder) group " and " oppositely (drying cylinder) group ", expression be single many cylinder group of drawing of netting of the above-mentioned type.
When paper is dried by the standard cylinder group of single net traction of its basal surface, if so asymmetric oven dry is extended drying forward on the whole length of workshop section, realize that then oven dry is so that at first dry the basal surface side of paper web, when oven dry was proceeded, drying effect also extended to the top surface side of paper web.Under these situations, from above description as can be seen, normally curled, and become spill by the paper of being dried.
As can be known, the curling test of paper usually is to be associated with the formation of paper web from prior art, particularly in the formation stage of page, utilizes the different choice of the speed between weir plate nozzle and the net and utilizes other operational factor influenced.From prior art, also know,, utilize the unequal-side effect of the oven dry in the drying cylinder of rear portion, can adjust page, make it have suitable initial curling form, so that after the single or double manifolding, can optimize curling of paper for example for carbon paper.For carbon paper, curling respond is the degree that the per unit moisture content change curl to produce, and has wider variation for the paper of sandwich construction, and it produces with green end in paper web formation and is associated.
In high speed paper machine, particularly in the fine paper paper machine, immediate technology related to the present invention is based on drier workshop section, in this workshop section, single net traction is arranged in the major part of paper machine length, consider the control of paper curling test, also use one oppositely to organize in the practice so that oven dry can be carried out enough balancedly in the Z direction.
In the rear portion cylinder group of the routine of paper machine, paper web is dried behind coating or top sizing, and the problem of appearance is by the moisture that paper web is introduced in coating paper web to be produced to expand the flowability that " fold " that is produced by expanding and similar problem have worsened paper web.In two net tractions of in rear portion drying cylinder before, using, paper web produces chatter between last drying cylinder row and following drying cylinder row, thereby paper web is easy to occur damaging, and on the cylinder group of arranging down, when paper web produces fold, following row's oven dry net very easily damages owing to the appearance of fold, and therefore the problem that exists needs to change continually the bottom fabric exactly.
Know also that from prior art the reduction of the paper web intensity that coating is caused also can give rise to trouble, freely drawing of the longer distance of paper web is easy to go wrong.
In the prior art, at applied paper particularly the solution that proposes of the rear portion drying cylinder of fine paper or analog be in drying cylinder, drying cylinder and drying cylinder once to be set at first on one, use the single of standard to net after one group that draws at this, cylinder group adopts two nets to draw.In it was used, the problem that is occurred was, considered the curling test of paper, adjusted suitablely if will curl, and then the ratio of cylinder group is wrong up and down.As can be known, in the drying cylinder of rear portion, because adhesion and the sizing material on the drying cylinder and the paste of paper web, the necessary temperature of first cylinder group that keeps is lower from prior art.
Be used for the paper applied cylinder group of the above-mentioned type of the ornamenting of fine paper has particularly been described in applicant's FI patent application No.950434.Therefore, the objective of the invention is to further develop the solution that in described application, proposes, so that in the drying cylinder of rear portion, more effectively control the curling test of paper.
A further object of the present invention provides a kind of solution that is used for the rear portion drying cylinder, and this scheme is particularly suitable in the drying cylinder that can not or be not suitable for forwardly using in the drying cylinder workshop section of curling of control paper web.
A further object of the invention provides a kind of device, make after coating paper web remain wet time, do not have freely drawing of longer distance.
A further object of the present invention provides a kind of rear portion drying cylinder that is used for paper machine, makes it have quite high-caliber flowability.
A further object of the invention provides a kind of rear portion drying cylinder that is used for paper machine, in the whole length of rear portion drying cylinder, can adopt so-called wireless traction on machine direction, and the simplification and the intermittence that help structure are shorter.
Above-described and following in order to realize with the goal of the invention that occurs, the principal character of the inventive method is in the drying cylinder of rear portion, paper web is dried in one/a plurality of cylinder group of the single net traction that utilizes standard, common or after oven dry with oven dry, utilize one/multiple arrangement to handle paper web to correct the curling test of paper web.
And, utilize the principal character of the rear portion drying cylinder of the inventive method to use the cylinder group of single net traction of a standard, in order to the oven dry paper web be used to correct one/multiple arrangement of the curling test of paper web for this rear portion drying cylinder comprises at least one.
In device of the present invention, whole rear portion drying cylinder forms one and has the cylinder group of single net traction, or has a cylinder group that has single net traction, and paper web is supported on the whole length of drying cylinder workshop section, and in this case, its flowability is fine.Paper web may occur curlingly utilizes steam chest and/or utilizes softening press polish to correct.Paper web also can directly flow to a top cylinder after coating, in this case, when the rear portion drying cylinder began whole length through the rear portion drying cylinder, traction was totally enclosed.
Describe the present invention in more detail with reference to the figure that provides in the accompanying drawings below, but the present invention is not limited to following described particular content.
Fig. 1 schematically shows the embodiment of a rear portion drying cylinder, this rear portion drying cylinder comprise one use standard single net traction cylinder group and
Fig. 2 schematically shows a kind of device, wherein after coating, paper web is used single net traction and is delivered directly on the top drying cylinder of cylinder group, crosses analogs such as a reverse air blast case or reverse rollers, in this case, in its whole length, obtained the traction of a sealing.
In Fig. 1, apparatus for coating represents with reference number 10, this apparatus for coating 10 be a kind of by the applicant with SYM-SIZER TMThe apparatus for coating on market, sold of title, this device comprises two relative applicator rolls 11 and 12, the sizing material feed arrangement links to each other with each roller, so that paper web W two faces between the coating nip of roller 11 and 12 are all applied.The direction of feed of paper web W is represented with arrow S.After apparatus for coating 10, paper web W enters the cylinder group of single net traction of employing standard through drying cylinder 171, in this group, the reverse rollers/cylinder that is arranged on the inboard in the oven dry net loop 176 that is guided by guide roller 177 is represented by reference number 175, and drying cylinder is represented with numeral 174.In cylinder group, the paper web W that will be dried runs on the reverse rollers 175 that is positioned at next row RA from the drying cylinder 174 that is arranged in the last row RY, so that on drying cylinder 174, paper web W is placed on the area of heating surface of drying cylinder 174, and on the reverse rollers 175 in being arranged on next row RA, paper web W remains on the outside camber line of net 176.After the process cylinder group, paper web W enters softening calender 191 by guide roller 195, and this calender comprises two press polish district N1 and N2.Two steam chests 192 also are set link to each other, utilize softening press polish and steam chest to correct curling of paper web with softening calender.Through guide roller 197, paper web is by nip device (nip device) 198, with further processed.Between press polish district N1 and N2, paper web is conducted through guide roller 196.
In Fig. 1, after apparatus for coating 10, a prebake device 15 has been installed, this prebake device 15 does not contact with paper web W, and it can be a kind of infrared baking device well known in the prior art, or a kind of air cushion paper web dryers, or its combination.Rear portion after the drying cylinder of rear portion is provided with a blowing plant 201, utilizes this device to promote evaporation through papermaking wire-cloth, even leave being evenly distributed of the humidity of paper on thickness direction of rear portion drying cylinder.And, in this device, a kind of known steam chest 202 can be provided, it can be to ask the sort of type of describing among the NO.906216 in the FI patent, a kind of known damping device 202 perhaps is provided, utilize the moisture distribution homogenising on the Z direction that damping device 202 can make at paper web, and/or reduce the amount of crimp of paper web.Certainly, these all attachment devices needn't adopt in identical structure simultaneously.About curling of paper web, the applicant tests at a newspaper machine, the baker workshop section of this newspaper machine ad hoc provides single net traction, and provides one or two nip softening calender after its baker workshop section, before the softening calender of this two nip a steam chest is arranged.Under the service condition of these reference tests, notice that paper web is curling on the direction of top surface--roll 3 centimetres on the direction of edge at top surface of the sample of 100mm diameter.When the others of service condition remain unchanged, and only be to handle carrying out steam humidification on the basal surface of paper web before follow-up softening press polish, amount of crimp just is reduced to 1.2cm significantly.In second test, baker workshop section moves normally, and in this case, measuring amount of crimp is 1.5...2cm, and when the basal surface with paper web carried out the steam humidification processing in above-mentioned mode, paper web then curled not again.
The essential characteristic of embodiment shown in Fig. 2 is identical with the embodiment shown in Fig. 1, but in the embodiment shown in Figure 2, after apparatus for coating, be provided with a reverse air blast device 14, paper web is rotated by this device, so that directly enter on the drying cylinder 174 that is arranged in a row.After this, two cylinder group of using single net traction of a standard are arranged, and between described cylinder group, form the traction of a sealing.Use in first cylinder group of single net traction of a standard part with Fig. 1 in the corresponding digital label represent that the drying cylinder in second cylinder group represents that with reference number 182 reverse rollers/cylinder is represented with reference number 181.Oven dry net 186 in second cylinder group is guided by guide roller 187.After cylinder group, the paper web W of having dried after guide roller 184 enters softening calender 191 according to the mode shown in Fig. 1, steam chest 192 preferably also is installed therein, in this case, can utilize steam chest 193 to reach and control curling of paper web W with the softening press polish district N1 of first chance 191 and the N2 of pressing of suitable manner adjusting.
In device of the present invention, reverse rollers/cylinder preferably adopts the absorption cylinder mould trade mark sale and that the suction box of inside is not provided with " VAC-ROLL " by the applicant in device, see applicant's FI patent No.83680 (identical United States Patent(USP) Nos. 5022163 and 5172491) for details about the concrete structure of described roller.
Below only described the present invention, but the present invention is in no way limited to the detailed structure of described embodiment with reference to some most preferred embodiments.

Claims (23)

1. the paper web drying surface-treated in the drying cylinder of the rear portion of paper machine or the method for analog, in the method, paper web (W) is at first finished by ornamenting in a finishing workshop section, in this finishing workshop section, by an ornamenting device (10) top sizing or coating are carried out in the two sides of paper web (W), after this, paper web (W) is dried, it is characterized in that in the drying cylinder of rear portion paper web (W) is dried in one/a plurality of cylinder group of the single net traction that only utilizes standard, common or after oven dry with oven dry, utilize one/multiple arrangement (192,191,201,202) handle paper web (W) to correct the curling test of paper web (W).
2. the method for claim 1, it is characterized in that in the drying cylinder of described rear portion, paper web (W) is dried in one/a plurality of cylinder group of utilizing normal single-wire draw, after oven dry, guiding paper web (W) is through at least one steam chest (192) and/or by at least one softening press polish district (N1; N2) to correct the curling test of paper web (W).
3. method as claimed in claim 1 or 2, it is characterized in that in the drying cylinder of described rear portion, paper web (W) is dried in one/a plurality of cylinder group of utilizing normal single-wire draw, after oven dry, guiding paper web (W) is through at least one blowing plant (201), utilize this device to promote evaporation through papermaking wire-cloth, even leave being evenly distributed of the humidity of paper web (W) on thickness direction of described rear portion drying cylinder.
4. method as claimed in claim 3, it is characterized in that in the drying cylinder of described rear portion, paper web (W) is dried in one/a plurality of cylinder group of utilizing normal single-wire draw, after oven dry, and guiding paper web (W) through a steam chest and/or a damping device (202) so as to make paper web (W) on the Z direction the moisture distribution homogenising and/or reduce the amount of crimp of paper web (W).
5. method as claimed in claim 4, it is characterized in that in the drying cylinder of described rear portion, paper web (W) utilized non-contacting pre-drying cylinder workshop section (15) before one/a plurality of cylinder group of utilizing normal single-wire draw, dried in the initial part of described rear portion drying cylinder.
6. method as claimed in claim 5, it is characterized in that afterwards at paper web (W) ornamenting device (10), paper web (W) is directed entering one/a plurality of cylinder group of utilizing single net traction through a drying cylinder (171), and after described cylinder group, paper web (W) is conducted through a steam chest (192) and enters a softening calender (191), utilize steam chest (192) to correct curling of paper web (W), in softening calender (191), paper web (W) is at two continuous press polish district (N1, N2) carry out press polish in and handle, between these two nips, utilize steam chest (192) to correct curling of paper web (W).
7. method as claimed in claim 6 is characterized in that in the method, and paper web (W) is dried in a cylinder group of utilizing single net to draw.
8. method as claimed in claim 6 is characterized in that in the method, and paper web (W) is dried in two cylinder group of utilizing single net to draw.
9. method as claimed in claim 8 is characterized in that at ornamenting device (10) afterwards, and paper web (W) enters a cylinder group of utilizing single net to draw through a reverse air blast device (14).
10. method as claimed in claim 8 is characterized in that at ornamenting device (10) afterwards, and paper web (W) enters a cylinder group of utilizing single net to draw through a drying cylinder (171) that is arranged on down in the row (RA).
11. method as claimed in claim 9 is characterized in that in the method, at ornamenting device (10) afterwards, paper web (W) enters into through a totally enclosed traction on first drying cylinder of the row of going up (RY) of the cylinder group that is positioned at the single net traction that utilizes standard.
12. the method for claim 1 is characterized in that in the method, paper web (W) enters into another cylinder group with a totally enclosed traction from a cylinder group.
13. each described method that is used for implementing claim 1 to 12 is with the rear portion drying cylinder of the paper machine of drying a surface-treated paper web or analog, this rear portion drying cylinder is arranged on ornamenting device (10) afterwards, this ornamenting device (10) carries out top sizing or coating with the two sides of paper web (W), it is characterized in that this rear portion drying cylinder comprises one/a plurality of cylinder group that only adopt single net traction of standard, in order to oven dry paper web (W), also comprise one/a plurality of devices (191 that are used to correct the curling test of paper web (W), 192,201,202).
14. rear portion as claimed in claim 13 drying cylinder is characterized in that after one/a plurality of cylinder group that adopt single net traction a softening calender (191) and/or steam chest (192) being installed, in order to correct the curling test of paper web.
15. as claim 13 or 14 described rear portion drying cylinders, it is characterized in that decline at the rear portion drying cylinder, a blowing plant (201) has been installed, in order to promoting evaporation, and has been made being evenly distributed of the humidity of paper web (W) on thickness direction of leaving the rear portion drying cylinder by whole net.
16. rear portion as claimed in claim 15 drying cylinder is characterized in that in the drying cylinder of rear portion, and a steam chest and/or a damping device (202) have been installed, with so that being evenly distributed of the humidity of paper web (W) on the Z direction and/or reduce the curling of paper web (W).
17. rear portion as claimed in claim 16 drying cylinder is characterized in that the beginning part at the rear portion drying cylinder, before one/a plurality of cylinder group utilizing single net traction, a pre-drying cylinder (15) has been installed, and is used to carry out the non-contacting prebake of paper web.
18. rear portion as claimed in claim 17 drying cylinder is characterized in that described rear portion drying cylinder comprises that one is utilized single net traction and is arranged on ornamenting device (10) cylinder group afterwards.
19. rear portion as claimed in claim 17 drying cylinder is characterized in that described rear portion drying cylinder comprises that two are utilized single net traction and are arranged on ornamenting device (10) cylinder group afterwards.
20. rear portion as claimed in claim 19 drying cylinder is characterized in that installing two steam chests (192) after one/a plurality of cylinder group.
21. rear portion as claimed in claim 20 drying cylinder is characterized in that the press polish district (N1 at softening calender (191); N2) steam chest (192) is installed before.
22. rear portion as claimed in claim 21 drying cylinder is characterized in that at ornamenting device (10) afterwards, before a cylinder group of utilizing single net to draw a reverse air blast device (14) is installed.
23. rear portion as claimed in claim 13 drying cylinder is characterized in that between each cylinder group in the drying cylinder of rear portion, paper web (W) has a totally enclosed traction.
CN97198079A 1996-09-20 1997-09-09 Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine Expired - Fee Related CN1077636C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI963,734 1996-09-20
FI963734 1996-09-20
FI963734A FI101488B1 (en) 1996-09-20 1996-09-20 A method for drying a surface-treated paper web or the like in a post-drying section of a paper machine and a post-drying section of a paper machine applying the method

Publications (2)

Publication Number Publication Date
CN1231006A CN1231006A (en) 1999-10-06
CN1077636C true CN1077636C (en) 2002-01-09

Family

ID=8546714

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97198079A Expired - Fee Related CN1077636C (en) 1996-09-20 1997-09-09 Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine

Country Status (10)

Country Link
EP (1) EP1015689B1 (en)
JP (1) JP4027987B2 (en)
KR (1) KR100487017B1 (en)
CN (1) CN1077636C (en)
AT (1) ATE258619T1 (en)
AU (1) AU4302797A (en)
CA (1) CA2266780C (en)
DE (1) DE69727401T2 (en)
FI (1) FI101488B1 (en)
WO (1) WO1998012379A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6001421A (en) * 1996-12-03 1999-12-14 Valmet Corporation Method for drying paper and a dry end of a paper machine
US5983523A (en) * 1997-03-27 1999-11-16 Valmet Corporation Method for controlling curl of paper in a dryer section of a paper machine and a paper or board machine
US6038789A (en) * 1997-05-15 2000-03-21 Valmet Corporation Method for controlling the curl of paper and a paper or board machine line that applies the method
FI106269B (en) * 1999-05-10 2000-12-29 Valmet Corp Blow arrangement and method for compensating the curl tendency of paper or cardboard webs and a paper or cardboard machine
DE10318250A1 (en) * 2003-04-23 2004-11-11 Voith Paper Patent Gmbh Drying assembly of papermaking machine, has series of drying cylinders inclined with respect to the horizontal, in direction of web advance
FI121931B (en) * 2003-05-08 2011-06-15 Metso Paper Inc A method for treating surface-glued paper, especially fine paper, in a paper machine finishing section and a paper machine finishing section
FI118387B (en) 2006-02-15 2007-10-31 Metso Paper Inc Process in connection with the manufacture of a surface glued fiber web, in particular a paper or cardboard web
FI20075012A0 (en) 2007-01-11 2007-01-11 Metso Paper Inc A method for treating a coated / surface-bonded paper or board web in a paper or board machine finishing section and a paper or board machine finishing section
CN103669089A (en) * 2012-09-10 2014-03-26 国能纸业有限公司 Rear drying system used for multi-cylinder long mesh paper machine
CN103669098B (en) * 2012-09-10 2017-09-22 国能纸业有限公司 For the frame for the multi-cylinder long mesh paper machine for producing high filler paper
CN103669097B (en) * 2012-09-10 2017-06-16 国能纸业有限公司 A kind of multi-cylinder long mesh paper machine for producing filler paper high
EP2765237B1 (en) 2013-02-06 2016-11-23 Valmet Technologies, Inc. Method for producing a fiber web and production line for producing a fiber web

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726353A2 (en) * 1995-02-01 1996-08-14 Valmet Corporation Method for producing surface-treated paper and dry end of a paper machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0726353A2 (en) * 1995-02-01 1996-08-14 Valmet Corporation Method for producing surface-treated paper and dry end of a paper machine

Also Published As

Publication number Publication date
FI101488B (en) 1998-06-30
DE69727401T2 (en) 2004-07-15
JP4027987B2 (en) 2007-12-26
CN1231006A (en) 1999-10-06
FI963734A (en) 1998-03-21
CA2266780C (en) 2007-05-08
DE69727401D1 (en) 2004-03-04
EP1015689B1 (en) 2004-01-28
JP2001500579A (en) 2001-01-16
KR19990046827A (en) 1999-07-05
KR100487017B1 (en) 2005-05-03
CA2266780A1 (en) 1998-03-26
FI963734A0 (en) 1996-09-20
ATE258619T1 (en) 2004-02-15
EP1015689A1 (en) 2000-07-05
FI101488B1 (en) 1998-06-30
AU4302797A (en) 1998-04-14
WO1998012379A1 (en) 1998-03-26

Similar Documents

Publication Publication Date Title
US5557860A (en) Dryer section with moistening devices at latter ends
EP0733737B1 (en) Apparatus for drying a web
US4596633A (en) Surface treatment of paper and paperboard
US5416980A (en) Method and apparatus for reduction of curling of paper in the drying section of a paper machine
US5968590A (en) Method for drying a surface-treated paper web in an after-dryer of a paper machine and after-dryer of a paper machine
CN1077636C (en) Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in a paper machine
US5470436A (en) Rewetting of paper products during drying
EP0915200A3 (en) Method in the drying of a paper web and dryer section in a paper machine
US5062216A (en) Single tiered multi-cylinder paper dryer apparatus
JP2001505630A (en) Paper drying method and paper machine dry end
EP0334899B2 (en) Apparatus for sequentially drying both sides of a paper web
CN110998021A (en) Machine and method for producing a fibrous web
US5771603A (en) Dryer section
CN1101499C (en) Method for control of curl of paper in dryer section of paper machine and paper or board machine
US5632101A (en) All top-felted single-tier drying section with post drying section curl control
US2661669A (en) Process and apparatus for avoiding curl in machine-made paper
US5379528A (en) Paper making machine drying section steam pressure profile
US5592751A (en) Dryer section having combination of single and double tier dryer groups
CN1077637C (en) Method for drying surface-treated paper web or equivalent in after-dryer of paper machine and after-drying carrying out the method in paper machine
FI121931B (en) A method for treating surface-glued paper, especially fine paper, in a paper machine finishing section and a paper machine finishing section
CA1126013A (en) Air impingement web drying apparatus
FI107548B (en) A method for freeze drying a paper web
DE102018112020A1 (en) Machine and method for producing a fibrous web
JP3212494B2 (en) Dryer for paper machine
FI115850B (en) Method and apparatus for supplying a substance to a web

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20020109

Termination date: 20140909

EXPY Termination of patent right or utility model