WO2007049528A1 - 抄紙方法および抄紙システム - Google Patents
抄紙方法および抄紙システム Download PDFInfo
- Publication number
- WO2007049528A1 WO2007049528A1 PCT/JP2006/321007 JP2006321007W WO2007049528A1 WO 2007049528 A1 WO2007049528 A1 WO 2007049528A1 JP 2006321007 W JP2006321007 W JP 2006321007W WO 2007049528 A1 WO2007049528 A1 WO 2007049528A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- papermaking
- paper
- adhesive
- aqueous solution
- pulp slurry
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000013055 pulp slurry Substances 0.000 claims abstract description 49
- 239000007864 aqueous solution Substances 0.000 claims abstract description 42
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000000853 adhesive Substances 0.000 claims description 68
- 230000001070 adhesive effect Effects 0.000 claims description 67
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 17
- 239000000835 fiber Substances 0.000 description 16
- 239000006185 dispersion Substances 0.000 description 12
- 238000010008 shearing Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007792 addition Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000218631 Coniferophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
Definitions
- the present invention relates to a paper making method and a paper making system that are performed using a paper machine having a cell structure hold in a head box.
- Paper production generally comprises a pulp process for producing raw pulp slurry and a papermaking process for producing paper from a pulp slurry.
- pulp process after forming chips from raw wood, raw pulp slurry is generated by processes such as cooking, washing, selection and bleaching.
- the paper making process the raw pulp slurry is supplied onto a headbox force wire for dehydration, and then paper is produced by processes such as pressing and drying.
- circular paper machines do not have a norp dispersion effect because they do not have a structure that mechanically applies a large shearing force to the raw pulp slurry in the head box during paper making.
- a papermaking adhesive for imparting pulp dispersibility is generally used.
- the raw material is generally dissolved in water to make an aqueous solution having a concentration of about 0.01% by weight or less and adjusted to have an appropriate viscosity. Added to the pulp slurry. As a result, the pulp dispersion effect is exhibited in the papermaking process by using the papermaking adhesive. In the paper obtained as a finished product, the pulp fibers are uniformly dispersed and the texture is excellent.
- a long net paper machine, a short net paper machine, a twin wire paper machine which was developed to improve the productivity of a circular net paper machine and has a relatively high paper speed (wire traveling speed).
- Talecent former paper machines and the like (hereinafter collectively referred to as “high-speed paper machines”) are equipped with a cell-structured hold in the head box, and the raw pulp slurry Is mechanically dispersed by a large shearing force when flowing through the hold
- Patent Document 1 discloses a paper-making adhesive instead of polyethylene oxide. As its use, a circular net paper machine is not indicated.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-290892
- the present invention has been made in view of the above-described problems of the prior art, and by optimizing the concentration of the aqueous papermaking adhesive solution added to the raw pulp slurry, it has been conventionally used even in a high-speed papermaking machine.
- An object of the present invention is to provide a papermaking method and a papermaking system capable of obtaining paper having excellent texture.
- a papermaking method using a papermaking machine including a head box having a cell structure hold, wherein the concentration in the raw pulp slurry is 0.03 to 0.
- a papermaking method including each step is provided, wherein an aqueous solution of 4% by weight of a papermaking adhesive is added, and the mixed pulp slurry containing the raw pulp slurry and the papermaking adhesive aqueous solution is introduced into the hold. Is done.
- the pulp dispersion effect due to the use of the papermaking adhesive is properly exhibited even in a papermaking machine provided with a cell structure hold in the head box. Therefore, in the paper obtained as a finished product, the pulp fibers are uniformly dispersed and have an excellent texture.
- the papermaking adhesive can be effectively used, and the paper quality can be improved.
- the proper use of the papermaking adhesive reduces problems such as paper breakage due to poor dispersion of pulp fibers, and enables stable papermaking. Therefore, according to this papermaking method, the yield in papermaking is improved and the production efficiency can be improved.
- the addition of the papermaking adhesive aqueous solution is performed between the head box and the screen closest to the head bot- tom. This requirement is suitable in order to appropriately exert the help dispersing effect due to the use of the papermaking adhesive.
- the papermaking adhesive is a polyethylene oxide papermaking adhesive.
- the paper-making adhesive is only polyethylene oxide.
- a paper machine comprising a screen for removing contaminants from a raw pulp slurry, and a head box having a cell structure hold provided downstream of the screen. And an adhesive adding means for adding an aqueous solution of a papermaking adhesive having a concentration of 0.03 to 0.4% by weight to the pipe connecting the screen and the head box.
- a papermaking system is provided.
- the papermaking adhesive is a polyethylene oxide papermaking adhesive.
- FIG. 1 is a schematic configuration diagram showing an example of a paper making system used in a paper making method according to the present invention.
- FIG. 2 is a longitudinal side view schematically showing the main part of the head box.
- FIG. 3 is a perspective view showing an example of a hold.
- FIG. 1 schematically shows a paper making system XI used in the paper making method according to the present invention.
- the paper making system XI mainly includes a pump 1, a screen 2, a head box 3, and piping connecting them, and performs a paper making method for producing paper from the raw pulp slurry S. It is configured.
- the pump 1 sends the raw pulp slurry S containing the pulp fibers generated in the pulp process to the screen 2 at a predetermined pressure.
- the screen 2 removes impurities contained in the raw pulp slurry S, and makes the thickness of the raw pulp slurry S uniform.
- the raw pulp slurry S passes through a very narrow gap while receiving contact pressure of a roller force (not shown), so that the pulp fibers contained in the raw pulp slurry S A relatively high shear force acts.
- the head box 3 is for injecting a mixed pulp slurry MS in which a papermaking adhesive P (described later) is added to a raw pulp slurry S onto a wire 4 that runs endlessly. And constitutes a part of the paper machine.
- a cell structure of a plurality of tubular bodies 31 is provided in the head box 3, as shown in FIG. 3, a cell structure of a plurality of tubular bodies 31 is provided.
- the hold 30 disperses the pulp fibers contained in the mixed pulp slurry MS by flowing the mixed pulp slurry MS.
- Each of the plurality of pipe bodies 31 has an introduction end 3 la and a lead-out end 31b, and is configured such that the flow cross-sectional area increases stepwise from the lead-in end 31a toward the lead-out end 31b. .
- Examples of the paper machine having the hold 30 having such a configuration include a talecent former paper machine, a twin-wire paper machine, and a long net paper machine. is there.
- a discharge opening 3a is formed on the downstream side of the hold 30. Then, the mixed pulp slurry MS discharged from the hold 30 is jetted to the tire 4 through the discharge opening 3a.
- the discharge opening 3a is tapered toward the downstream side.
- a pipe 22 for adding the papermaking adhesive aqueous solution M is connected to the pipe 21 connecting the screen 2 and the head box 3.
- Examples of the aqueous M sticking paper solution M to be added include polyethylene oxide aqueous solutions.
- the raw material pulp slurry S is supplied to the screen 2 by the operation of the pump 1.
- the raw pulp slurry S that has passed through the screen 2 is introduced into the pipe 21.
- a polyethylene oxide aqueous solution as a papermaking adhesive aqueous solution M is added to the raw material pulp slurry S through a pipe 22.
- the aqueous solution is prepared so that the polyethylene oxide concentration becomes a predetermined value within a range of 0.03 to 0.4% by weight.
- the method for preparing the polyethylene oxide aqueous solution is not particularly limited. For example, a stainless steel dissolution tank equipped with a stirrer is used. While stirring the water in the tank, the powder of polyethylene oxide as a papermaking adhesive is used. What is necessary is just to dissolve in water.
- the raw material pulp slurry S and the papermaking adhesive aqueous solution M are mixed, and the resulting mixed pulp slurry MS is sent to the head box 3.
- the mixed pulp slurry MS is introduced into the hold 30 (the plurality of tubes 31). Since the flow cross-sectional area is relatively small in the vicinity of the introduction end 31a of the pipe body 31, the flow rate of the mixed pulp slurry MS flowing therethrough becomes high. Then, the cross-sectional area of the flow increases stepwise toward the outlet end 31b, and the flow velocity of the mixed pulp slurry MS decreases stepwise. As a result, a vortex flow is generated in the tube 31 and a relatively large shearing force acts on the mixing valve slurry MS. By the action of this shearing force, the pulp fibers contained in the mixed pulp slurry MS are effectively dispersed. On the other hand, the papermaking viscous aqueous solution M is a raw material pad that is not significantly degraded by the eddy current generated in the tube 31. Disperse and mix into the slurry s.
- the mixed pulp slurry MS in which the pulp fibers to be included are appropriately dispersed by passing through the hold 30 (tube body 31) and the viscosity is appropriately reduced by shearing is passed through the lead-out end 31b. And sprayed on the wire 4 traveling from the discharge opening 3a. On the wire 4, the pulp fibers contained in the mixed pulp slurry MS are uniformly dispersed due to the pulp dispersion effect of the papermaking adhesive. Thereafter, the mixed pulp slurry MS is dehydrated, and a finished paper is produced through various processes such as pressing and drying.
- the polyethylene oxide system is used for the papermaking method by the papermaking system XI according to the present invention.
- the papermaking adhesive can be used effectively.
- the polyethylene oxide papermaking viscosity agent that has been used in conventional circular paper machines cannot be used to make paper using a high-speed paper machine because it does not have a significant pulp dispersion effect. It had been.
- the present inventors have made effective use of polyethylene oxide, which has industrially stable productivity and has been used as a papermaking adhesive in circular paper machines, for high-speed paper machines.
- the viscosity of the papermaking adhesive aqueous solution M added to the raw pulp slurry S is preferably 0.03 to 0.4% by weight. More preferably, it is 0.03 to 0.2% by weight.
- the adhesive concentration M of the papermaking adhesive aqueous solution M to be added is less than 0.03% by weight, the pulp dispersing effect of the papermaking adhesive is caused by the decrease in viscosity due to shear in the head box 3. Since it decreases, the paper texture improvement effect is hardly seen.
- the concentration of the papermaking adhesive aqueous solution M exceeds 0.4% by weight, the viscosity of the papermaking adhesive aqueous solution M is high V. Since it is in a state where it is not sufficiently mixed, a site where the aqueous papermaking adhesive solution aggregates in the form of streaks or lumps is formed on the wire, thereby inhibiting the dispersion of pulp fibers. For this reason, problems such as paper breaks There is a risk that papermaking cannot be performed stably. Power! In addition, the generated paper has defects such as spots and holes, which may lead to quality degradation.
- the paper-making adhesive (polyethylene oxide) used in the paper-making method of the present invention has a viscosity-average molecular weight of 3 million to 11 million, preferably from the viewpoint of pulp dispersibility and handling. 4 million to 9 million is effective.
- the amount of the papermaking adhesive used varies depending on the type of the paper, and is not particularly limited, but is 0.001 to 0% based on the dry weight of the paper produced. Preferably, 0.01 to 0.5% is effective.
- the addition location of the papermaking adhesive aqueous solution M is not limited to the configuration performed via the pipe 22 connected to the pipe 2 for connecting the screen 2 and the head box 3, but the papermaking adhesive. In order to properly exhibit the pulp dispersion effect of the use of, it is preferable to be between the screen 2 and the head box 3, in other words, downstream of the screen 2 and upstream of the head box! / ⁇ .
- shearing in the screen 2 causes a decrease in viscosity, and the pulp dispersion effect due to the use of the papermaking adhesive may not be exhibited. Because.
- the papermaking method of the present invention is preferably applied to the production of thin paper such as tissue paper or toilet paper having a basis weight of about 60 gZm 2 or less, but is not limited thereto.
- Paper making method Paper was produced from the raw pulp slurry S using the papermaking system XI according to the above embodiment.
- a Talecent former paper machine was used as the paper machine, and it was operated under the conditions for making tissue paper with a basis weight of 13 g / m 2 at a paper making speed of 800 mZ min.
- NBKP (conifer pulp) / LBKP (broadwood pulp) 40Z60 (weight ratio) with a beating degree of 640mlcsf (Canadian standard freeness) was used as the papermaking raw material, and 0.1% by weight of raw material pulp slurry S was used. .
- Polyethylene oxide (trade name: ⁇ -27, viscosity average molecular weight 7.5 million, manufactured by Sumitomo Seika Co., Ltd.) was used as a papermaking sticker, and this was dissolved in water and stirred thoroughly. An aqueous solution of 0.07% by weight of polyylene oxide was prepared as the agent aqueous solution. This polyethylene oxide aqueous solution was added to the pipe 21 between the screen 2 and the head box 3 to make paper. The amount of papermaking adhesive used was 0.1% in weight ratio to the dry weight of the paper produced.
- paper was made under the same conditions as in Example 1 except that the concentration of the aqueous polyethylene oxide solution used as the papermaking adhesive aqueous solution was 0.03 wt%.
- Table 1 shows the results of confirming the formation of the paper obtained in this example.
- a long net paper machine was used as a paper machine, and the paper machine was operated under conditions for making tissue paper with a basis weight of 17 g / m 2 at a paper making speed of 1 lOOmZmin.
- NBKPZLBKP 60/40 (weight ratio) with a beating degree of 660 mlcsf (Canadian standard freeness) was used as the papermaking raw material, and a raw material pulp slurry S of 0.12% by weight was obtained.
- the above-mentioned polyethylene oxide (PEO-27) is used as a papermaking adhesive, and this is dissolved in water and stirred thoroughly to give a papermaking viscosity.
- aqueous agent solution M a 0.06 wt% polyethylene oxide aqueous solution was prepared.
- the aqueous solution was added to the pipe 21 between the screen 2 and the head box 3 to make paper.
- the amount of papermaking adhesive used was 0.15% in terms of the weight ratio to the dry weight of the paper produced. Table 1 shows the results of confirming the formation on the paper obtained in this example.
- the aqueous solution was added to the pipe 21 between the screen 2 and the head box 3 to make paper.
- the amount of papermaking adhesive used was 0.15% in terms of the weight ratio to the dry weight of the paper produced. Table 1 shows the results of confirming the formation of the paper obtained in this example.
- the aqueous papermaking adhesive solution M has a low concentration as in Comparative Example 1. Compared to the case, the effect of improving the groundwork was significant.
- the concentration (0.01% by weight) of the papermaking adhesive aqueous solution M in Comparative Example 1 is appropriate as the aqueous solution concentration when polyethylene oxide is used as the papermaking adhesive (using a circular net paper machine). It is near the upper limit of a conventionally known concentration range (about 0.01% by weight or less).
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006307310A AU2006307310B2 (en) | 2005-10-25 | 2006-10-23 | Papermaking method and papermaking system |
EP06822028.4A EP1950345B1 (en) | 2005-10-25 | 2006-10-23 | Papermaking method and papermaking system |
CA2627471A CA2627471C (en) | 2005-10-25 | 2006-10-23 | Papermaking method and papermaking system |
US12/084,087 US20090250182A1 (en) | 2005-10-25 | 2006-10-23 | Papermaking Method and Papermaking System |
JP2007542353A JP4839320B2 (ja) | 2005-10-25 | 2006-10-23 | 抄紙方法および抄紙システム |
BRPI0617919-3A BRPI0617919B1 (pt) | 2005-10-25 | 2006-10-23 | Paper production process and paper production system |
KR1020087012252A KR101321465B1 (ko) | 2005-10-25 | 2006-10-23 | 초지 방법 및 초지 시스템 |
CN2006800396093A CN101297080B (zh) | 2005-10-25 | 2006-10-23 | 抄纸方法和抄纸装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-309721 | 2005-10-25 | ||
JP2005309721 | 2005-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007049528A1 true WO2007049528A1 (ja) | 2007-05-03 |
Family
ID=37967640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/321007 WO2007049528A1 (ja) | 2005-10-25 | 2006-10-23 | 抄紙方法および抄紙システム |
Country Status (11)
Country | Link |
---|---|
US (1) | US20090250182A1 (ja) |
EP (1) | EP1950345B1 (ja) |
JP (1) | JP4839320B2 (ja) |
KR (1) | KR101321465B1 (ja) |
CN (1) | CN101297080B (ja) |
AU (1) | AU2006307310B2 (ja) |
BR (1) | BRPI0617919B1 (ja) |
CA (1) | CA2627471C (ja) |
RU (1) | RU2413810C2 (ja) |
TW (1) | TW200730697A (ja) |
WO (1) | WO2007049528A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007108300A1 (ja) * | 2006-03-16 | 2007-09-27 | Sumitomo Seika Chemicals Co., Ltd. | 抄紙方法及び抄紙機 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06146189A (ja) * | 1992-10-29 | 1994-05-27 | Mitsubishi Heavy Ind Ltd | 抄紙機のヘッドボックス |
JP2004517229A (ja) * | 2000-12-29 | 2004-06-10 | メッツォ ペーパー インコーポレイテッド | ペーパーマシン若しくはその類のヘッドボックスへの紙料供給装置 |
JP2005126880A (ja) * | 2003-10-02 | 2005-05-19 | Daiyanitorikkusu Kk | ノニオン性抄紙用粘剤 |
JP2005154978A (ja) * | 2003-11-28 | 2005-06-16 | Daiyanitorikkusu Kk | 抄紙用粘剤 |
Family Cites Families (14)
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US3281312A (en) * | 1961-07-05 | 1966-10-25 | Mead Corp | Fibrous product containing resinous material and polyethylene oxide and process thereof |
US5238534A (en) * | 1992-01-24 | 1993-08-24 | James River Corporation Of Virginia | Wetlaid nonwovens on high speed machines |
CA2118771A1 (en) * | 1993-04-30 | 1994-10-31 | Charles L. Burdick | Aqueous suspensions of poly(ethylene oxide) useful as retention aid in paper manufacture |
US5755930A (en) * | 1994-02-04 | 1998-05-26 | Allied Colloids Limited | Production of filled paper and compositions for use in this |
US5560807A (en) * | 1995-03-29 | 1996-10-01 | Beloit Technologies, Inc. | Headbox additive injection system |
US6210535B1 (en) * | 1995-06-01 | 2001-04-03 | Valmet Corporation | Stock feed system for a multi-layer headbox and method in the operation of a multi-layer headbox |
JP3407029B2 (ja) * | 1995-06-02 | 2003-05-19 | 独立行政法人産業技術総合研究所 | 抄紙用粘剤、およびそれを使用した抄造方法 |
FI115645B (fi) * | 1997-01-14 | 2005-06-15 | Metso Paper Inc | Paperikoneen perälaatikko, jossa on reunasyöttöjärjestelyt |
BR9812563A (pt) * | 1997-09-30 | 2000-08-01 | Nalco Chemical Co | Borossilicato sintético, composição de borossilicato sintético, borossilicato coloidal, e, processos para a preparação deste, para a preparação de uma folha celulósica, para aumentar a drenagem de um suprimento de preparação de papel em uma máquina de preparação de papel, para aumentar a velocidade de drenagem de água dos componentes sólidos de um suprimento de fábrica de papel, de floculação dos componentes de um suprimento de fábrica de papel em um sistema de preparação de papel em uma folha celulósica, e para aumentar a retenção de finos e de cargas sobre uma folha celulósica e aumentar a velocidade de drenagem de lìquido de uma folha celulósica |
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-
2006
- 2006-10-23 US US12/084,087 patent/US20090250182A1/en not_active Abandoned
- 2006-10-23 BR BRPI0617919-3A patent/BRPI0617919B1/pt not_active IP Right Cessation
- 2006-10-23 WO PCT/JP2006/321007 patent/WO2007049528A1/ja active Application Filing
- 2006-10-23 AU AU2006307310A patent/AU2006307310B2/en not_active Ceased
- 2006-10-23 CA CA2627471A patent/CA2627471C/en not_active Expired - Fee Related
- 2006-10-23 JP JP2007542353A patent/JP4839320B2/ja active Active
- 2006-10-23 KR KR1020087012252A patent/KR101321465B1/ko active IP Right Grant
- 2006-10-23 CN CN2006800396093A patent/CN101297080B/zh active Active
- 2006-10-23 EP EP06822028.4A patent/EP1950345B1/en not_active Expired - Fee Related
- 2006-10-23 RU RU2008120194/12A patent/RU2413810C2/ru not_active IP Right Cessation
- 2006-10-24 TW TW095139131A patent/TW200730697A/zh unknown
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JPH06146189A (ja) * | 1992-10-29 | 1994-05-27 | Mitsubishi Heavy Ind Ltd | 抄紙機のヘッドボックス |
JP2004517229A (ja) * | 2000-12-29 | 2004-06-10 | メッツォ ペーパー インコーポレイテッド | ペーパーマシン若しくはその類のヘッドボックスへの紙料供給装置 |
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Cited By (1)
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WO2007108300A1 (ja) * | 2006-03-16 | 2007-09-27 | Sumitomo Seika Chemicals Co., Ltd. | 抄紙方法及び抄紙機 |
Also Published As
Publication number | Publication date |
---|---|
CN101297080B (zh) | 2011-04-06 |
JPWO2007049528A1 (ja) | 2009-04-30 |
RU2008120194A (ru) | 2009-12-10 |
KR101321465B1 (ko) | 2013-10-25 |
CN101297080A (zh) | 2008-10-29 |
RU2413810C2 (ru) | 2011-03-10 |
AU2006307310A1 (en) | 2007-05-03 |
CA2627471A1 (en) | 2007-05-03 |
TW200730697A (en) | 2007-08-16 |
EP1950345A4 (en) | 2012-03-07 |
EP1950345A1 (en) | 2008-07-30 |
CA2627471C (en) | 2013-12-10 |
JP4839320B2 (ja) | 2011-12-21 |
TWI379931B (ja) | 2012-12-21 |
EP1950345B1 (en) | 2013-09-11 |
KR20080068093A (ko) | 2008-07-22 |
US20090250182A1 (en) | 2009-10-08 |
BRPI0617919B1 (pt) | 2018-02-06 |
BRPI0617919A2 (pt) | 2011-08-09 |
AU2006307310B2 (en) | 2010-09-23 |
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