CN101479427A - Process for loading a fibrous suspension with filler - Google Patents
Process for loading a fibrous suspension with filler Download PDFInfo
- Publication number
- CN101479427A CN101479427A CNA2007800244080A CN200780024408A CN101479427A CN 101479427 A CN101479427 A CN 101479427A CN A2007800244080 A CNA2007800244080 A CN A2007800244080A CN 200780024408 A CN200780024408 A CN 200780024408A CN 101479427 A CN101479427 A CN 101479427A
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- China
- Prior art keywords
- filling
- aforesaid right
- light level
- paper
- suspended matter
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- 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
- D21H17/63—Inorganic compounds
- D21H17/70—Inorganic compounds forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately
-
- 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
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H21/50—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 characterised by form
- D21H21/52—Additives of definite length or shape
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
A process to load a fibrous slurry with a filler, in particular with calcium carbonate (fiber loading). The loaded fibrous slurry is divided into at least two fractions, a light fraction and a heavy fraction, for which purpose hydrocyclones are used in one embodiment. In this case, the different fractions have a different level of loading, that is to say the quantity of precipitated fillers adhering to the fibers is different in each case. There is the possibility of feeding the less highly loaded fibers back into the loading process, in order to increase the level of loading of this fraction further.
Description
The present invention relates to method as claim 1 filling fibrous material as described in the preamble suspended matter.
Known multiple filling fibre technology method with calcium carbonate filling paper pulp fiber.Described a kind of method in US 5223090, used the fibrous material of the elongation fiber that contains the fibre wall with surrounding cavity in the method, the humidity of this fiber is enough to form the dehydration paper pulp of paper pulp.The water capacity of this fiber is equivalent to 40 to 50% of fibre weight.Water mainly is present in fibrous inside and fibre wall inside.Then add calcium oxide or calcium hydroxide to paper pulp alternatively, so that the water that exists in calcium oxide that at least a portion is introduced or calcium hydroxide and the paper pulp combines.Then fibrous cellulose material and carbon dioxide are worked, handle through shearing-hybrid technique simultaneously, to be created in the fibrous material that contains obvious amount calcium carbonate in the cavity with the fibre wall inside of cellulose fibre by precipitation.
Method by the known another kind of filling fibrous material suspended matter of DE 10204254 A1.This method comprises the following steps: liquid state or dry type calcium hydroxide or calcium oxide are added in the fibrous material suspended matter, introduces carbon dioxide in the fibrous material suspended matter, by the carbon dioxide winnofil.
The object of the present invention is to provide a kind of method of filling fibrous material suspended matter, strengthened the advantage of filling procedure in this method, also can obviously reach higher filling effect.
Purpose of the present invention realizes by measure as claimed in claim 1.
Can prepare fibrous material (fiber of FLPCC=filling winnofil) by this method, particularly in papermaking, be used to prepare paper pulp or use paper pulp with the calcium carbonate filling.The fibrous raw material for the treatment of filling is for example from recycled writing paper, DIP (=deinking paper), paper pulp secondary stock material, bleaching or unbleached, all kinds of wood materials, all kinds of paper material paper pulp, bleaching or unbleached sulfate pulp, waste material, linen fibre, cotton fiber and/or hemp (being mainly used in the preparation cigarette paper) and/or various other available in paper machine paper material.The application of this method and the fibrous raw material of filling are irrelevant.
Range of application of the present invention can expand to papermaking and pulp preparation and comprise the technology for preparing filler, and the range of application that comprises all stationeries, wherein all stationeries comprise wrapping paper and produce in the waste product that produces, the filer content of this waste product is 1% to 60% and/or to have filer content be 1% to 60% white cap rock.This filler is preferably 5% to 50%.
If in papermaking, handle the fibrous material suspended matter, then produce a kind of with commercially available known product thus and compare the completely new product that has novelty and improve characteristic with the filling fibre technology.This technology can in the material preparation in paper mill, directly be settled out only evenly distribute and be deposited on the fiber and fiber in particularly on the paper fiber and the filler (calcium carbonate) in the paper fiber.
In the methods of the invention, can be advantageously carry out classification with the hydrocyclone that can produce the high centrifugal field corresponding with for example 200 times of gravitational fields.
Another kind may be the applying pressure screening washer, particularly works as it and is designed to have close-meshed fiber classification device.Certainly, the combination of also available multi-stage separation device and/or various separation principles.
It is particularly advantageous so implementing the inventive method, promptly utilizes the different-effect of filling cellulosic suspended matter or coordinates this different-effect partially or completely again by relative measures.In the filling procedure that a kind of the present invention uses, can form a kind of cellulosic suspended matter that for example forms by various fiber combinations.Based on different qualities, can make in the fiber of all participations filling all different.In addition, can consider a kind of influence of statistics, promptly in precipitation process based on parameter fluctuation, as time or place difference, make the precipitation inhomogeneous.Different packing densities, the difference of the amount of the precipitation crystal that promptly adheres on fiber can produce the grading that is right after filling procedure, at this moment forms level part of at least two kinds of different packing densities.Because the fiber of the strong filling of warp overweights the fiber through more weak filling, will there be the fiber of strong packing density to be called heavy duty part here, there is the fiber of more weak packing density then to be called light grade part.
According to different requirements, can consider that two kinds are used for further handling not at the same level part possibility to method.
First kind of possibility be, light level part is turned back to the device feature that is arranged in before the filling to implement filling procedure again, does so for example particularly advantageously to be, at this moment can make the fiber in light level part reach obviously higher packing density by filling once more.Reason may be that based on fiber properties, the filling of long period or the chemical reagent of higher concentration can be more favourable.Under this class situation, disobey " the most complicated fiber " and determine technology and be comparatively worthwhile from macroeconomic ground optimization technology.
This second kind of possibility be, formed level part is distinguished application when papermaking or the system cardboard targetedly.Oneself know in papermaking to all kinds of paper with also may different quality requirements be arranged to each position on the paper machine.Also is possible by classification with the whole technology of improving papermaking.
Compare with the technology that is generally used for preparing the cellulosic suspended matter, can be issued to higher lapping degree at energy saving condition by filling; For example can save and reach 50% grinding energy.This mainly is those paper with height or very high lapping degree to all effective especially through all kinds of paper of grinding step in its preparation, for example FL-cigarette paper (FL=filling fiber), FL-B﹠amp; P-paper, FL-kraft bag paper and FL-filter paper.Do not need at these paper under the situation of filler, can or will remove free filler before the cellulosic suspended matter introducing hopper or before being added to the paper machine behind grinding step.But the inside of this fiber itself and/or inside and outsidely all contain filler, thereby kept the advantageous effects of filling fibre technology.
Filling is all favourable to the preparation of all kinds of paper, because by the mechanical stress that is produced by technology in as compacting position, dry position or the zone at winding web at each section of paper machine, prepared intermediate products and finished product to be made bear high mechanical load by using up-coiler, mica wrappingmachine, roll machine and interpreter.
Another advantage of using technology of the present invention in above-mentioned stationery is that these stationeries also can continue processing in flattener.By using fiber filling process deposit fiber pack grain in fiber, around the fiber and on the fiber, can avoid melanism, promptly black glaze polishing reason.
The exemplary embodiments of filling cellulosic suspended matter is described below.
Use the aqueous fibre material, particularly moisture paper stock is made raw material, and its denseness is 0.1 to 20%, and preferred 2 to 8%.Calcium hydroxide or calcium oxide with water material or dry state are sneaked in the aqueous paper fiber there to be 0.01 to 60% of fibre weight.Use static mixer, dump tank or substance dissolves device in the mixed process; At this moment the pH value is transferred to 7 to 12, and preferred 9 to 12.The reactivity of calcium hydroxide is 0.01 to 10 minute, preferred 1 second to 3 minutes.Response parameter is in accordance with regulations sneaked into dilution water.
According to response parameter carbon dioxide is sneaked in the wet paper stock.At this moment calcium carbonate precipitates in carbon dioxide.
Technological temperature is preferably-15 ℃ to 120 ℃, particularly 20 ℃ to 90 ℃.Preferred rhombohedron, scalenohedron and the sphaerocrystal of producing, crystal size is 0.05 to 5 μ m, particularly 0.3 to 2.5 μ m.
Be the cellulosic suspended matter of preparation, use static and/or dynamic hybrid component, particularly rotary stirring parts with the calcium carbonate filling.
This method is 0 to 15bar at pressure preferably, particularly carries out under 0 to 6bar.This method is 6 to 10 in the pH value advantageously also, particularly carries out for 6.5 to 9.5 times.This reaction time is 0.03 second to 1 minute, particularly 0.05 to 10 second.
For example can produce the filling product particle that its each cubical size is about the rhombohedron of 0.05 to 2 μ m.In some cases, producing each length, to be about the filling product particle that 0.05 to 2 μ m and each diameter be about the scalenohedron of 0.01 to 0.05 μ m also be favourable.
By the preferred embodiment of the inventive method, the solid material concentration that is used for heavy prepared cellulosic suspended matter is about 0.1 to 60%, preferred 15 to 35%.
By a suitable embodiment of this placement method,, under preferred about 20 to 90 ℃ of temperature carbon dioxide is added in the cellulosic suspended matter at-15 to 120 ℃ approximately.
Below by description of drawings the present invention and its advantage.Wherein:
Fig. 1 shows the equipment schematic diagram that is used to introduce by an embodiment of the inventive method;
Fig. 2 illustrates another program of method.
Exemplarily show the equipment that comprises some most important method steps and device among Fig. 1.In this equipment, fiber material P, for example paper pulp or deinked waste paper are sent into material dissolution device 10 with water W.This material dissolution device 10 can be conventional structure, uses and prevent the tumbler 12 that material dissolution device screen cloth 11 stops up as in its bottom material dissolution device screen cloth 11 being arranged and running up to move in the material dissolution device.In this embodiment the fiber material that is dissolved is sent in a plurality of purifiers, represented with material clarifier 14 and stock grading device 15 among the figure.After the purifier is that worm screw filter press 16 is to improve the denseness of cellulosic suspended matter S again.The pressing filtering liquid 18 of this worm screw filter press 16 can return material dissolution device 10 and be used for dissolving.The fiber material 19 of thickening enters crystallizer 20 then, and this crystallizer is separated out the precipitation of calcium carbonate that is the flour filler shape by means of the carbon dioxide 24 that imports.Carbon dioxide passes through carbon dioxide batch can 21 feed, and transfers to temperature required by cooling agent or heating agent 23 in heat exchanger 22.But also can use other method for regulating temperature, for example when needing elevated temperature, can directly add steam.In feeder 26, collect cellulosic suspended matter, perhaps also available dilution water 27 dilutions through filling.
Then directly or through intermediate treatment as after grinding the cellulosic suspended matter S ' through filling being carried out hierarchical processing.Exemplary here for this reason and advantageously use cleaning equipment with efficient hydrocyclone 13.They form heavy duty part 2 and light level part 1.The ratio of the fiber of the strong filling of the filler through adhering to is heavier through the fiber of more weak filling, also rigidity more.Classification of the invention process has just utilized this difference, particularly under the situation of using sedimentation or centrifugal force.Therefore this heavy duty part 2 contains the stronger fiber through the filler filling than light level part 1.
The example that is used for particularly only regarding as simplification shown in Figure 1 with the device part of calcium carbonate filling with filler.In many cases, also bleaching process can be integrated into.Implement the details of filling and can consult the document that beginning is mentioned.This filling procedure should be as moving at line procedures in the paper mill.
As mentioned above, the classification of this filling fiber material also can be used for producing different materials qualities, or different paper product matter is provided in papermaking.Fig. 2 illustrates an equipment schematic diagram as the example to this operation, but the dissolving of cellulosic suspended matter and purification no longer illustrate.It can be consistent with Fig. 1 or comparable known devices part.By means of method of the present invention, for example can be with light level part 1, promptly in the material that fiber and heavy duty part 2 of less filling imports paper machine or board machine respectively gathers materials parts 32, at this moment add other composition 30,31 (fiber material or additive) usually.Also but (not shown) is differently handled level part, as grinding.
In this embodiment, gather materials parts 32 form three layers.In the time of particularly should utilizing better delays of higher-strength and/or fiber that should strong filling, light level part 1 should import inside, and heavy duty part 2 should import the outside.Also can constitute multilayer by a plurality of parts that gather materials.
The constant parts of paper machine are not shown at this.
Claims (20)
1. method of particularly using calcium carbonate filling fibrous material suspended matter (S) with filler, wherein the calcium hydroxide with liquid state or dry state is added in the fibrous material suspended matter (S), and in the fibrous material suspended matter, be settled out filler by chemical reaction, it is characterized in that, this cellulosic suspended matter through filling (S ') is classified into the different level of at least two kinds of packing densities part, and these grades part is made different disposal.
2. in accordance with the method for claim 1, it is characterized in that, implement classification by adopting centrifugal force.
3. in accordance with the method for claim 2, it is characterized in that, in hydrocyclone (13), implement classification.
4. in accordance with the method for claim 3, it is characterized in that, produce the centrifugal field of at least 200 times of acceleration of gravity at described hydrocyclone (13).
5. according to one of aforesaid right requirement described method, it is characterized in that, form at least a light level part (1) and at least a heavy duty part (2) with higher packing density with less packing density.
6. in accordance with the method for claim 5, it is characterized in that, refill described light level part (1).
7. in accordance with the method for claim 6, it is characterized in that described light level part (1) turns back in the same filling procedure of its filling once.
8. in accordance with the method for claim 6, it is characterized in that, described light level part (1) filling in another filling procedure.
9. according to the described method of one of claim 5 to 8, it is characterized in that described light level part (1) and heavy duty part (2) are ground through different modes.
10. according to the described method of one of claim 5 to 9, it is characterized in that described light level part (1) is used for different paper products or board product with heavy duty part (2).
11., it is characterized in that described light level part (1) and heavy duty part (2) are used for the different parts of paper product or board product according to the described method of one of claim 5 to 10.
12. according to one of aforesaid right requirement described method, it is characterized in that application consistency is 0.1 to 20%, preferred 2 to 8% aqueous fibre material, particularly moisture paper stock is as raw material.
13., it is characterized in that the process temperature of precipitation is-15 ℃ to 120 ℃, particularly 20 ° to 90 ℃ according to one of aforesaid right requirement described method.
14. according to one of aforesaid right requirement described method, it is characterized in that, carry out the chemical precipitation of filler by gaseous carbon dioxide.
15. the method for one of aforesaid right requirement is characterized in that, produces rhombohedron, scalenohedron and spherical crystal.
16. the method for claim 15 is characterized in that, described crystal size is 0.05 to 5 μ m, particularly 0.3 to 2.5 μ m.
17. the method that aforesaid right one of requires is characterized in that, is 0 to 15bar at pressure, particularly carries out filling under 0 to 6bar.
18. the method for one of aforesaid right requirement is characterized in that, is 6 to 10 in the pH value, particularly carries out filling 6.5 to 9.5 times.
19. the method that aforesaid right one of requires is characterized in that, is 0.1% to 60% at solid content, carries out filling preferred 15% to 35% time.
20. the method for one of aforesaid right requirement is characterized in that the reaction time of precipitation is 0.03 second to 1 minute, particularly 0.05 to 10 second.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006029642.7 | 2006-06-28 | ||
| DE102006029642A DE102006029642B3 (en) | 2006-06-28 | 2006-06-28 | Method for loading a pulp suspension with filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101479427A true CN101479427A (en) | 2009-07-08 |
Family
ID=38169389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800244080A Pending CN101479427A (en) | 2006-06-28 | 2007-03-22 | Process for loading a fibrous suspension with filler |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20090056888A1 (en) |
| EP (1) | EP2038477A1 (en) |
| JP (1) | JP2009541604A (en) |
| KR (1) | KR20090031848A (en) |
| CN (1) | CN101479427A (en) |
| BR (1) | BRPI0712858A2 (en) |
| CA (1) | CA2636454A1 (en) |
| DE (1) | DE102006029642B3 (en) |
| WO (1) | WO2008000308A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339548A (en) * | 2013-04-26 | 2016-02-17 | 芬兰温德造纸湿部技术公司 | A method of providing fiber web making furnish with filler, and paper or paper board |
| CN107190561A (en) * | 2017-07-26 | 2017-09-22 | 深圳市天橙宝投资发展有限公司 | Pulp composition and pulp composition product |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100997254B1 (en) | 2008-09-18 | 2010-11-29 | 한국지질자원연구원 | Method for manufacturing recycled paper with in-situ process |
| PT2236664E (en) | 2009-03-30 | 2016-03-04 | Omya Int Ag | Process for the production of nano-fibrillar cellulose suspensions |
| EP2314765B1 (en) | 2009-10-01 | 2017-11-29 | bene_fit systems GmbH & Co. KG | Production of a fibre compound, use of same and fibre compound |
| EP2365130A1 (en) | 2010-02-18 | 2011-09-14 | Bene_fit Systems GmbH & Co. KG | Impregnated fibre compound, use and manufacture of same |
| FI125278B (en) * | 2010-08-20 | 2015-08-14 | Upm Kymmene Corp | Process for precipitating calcium carbonate and using the process |
| WO2018140252A1 (en) * | 2017-01-26 | 2018-08-02 | Kimberly-Clark Worldwide, Inc. | Treated fibers and fibrous structures comprising the same |
| KR102583061B1 (en) * | 2022-10-27 | 2023-09-26 | 주식회사 에쓰큐씨 | Paper Comprising Calcium Carbonate From the Shell and Manufacturing Method of the Same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292122A (en) * | 1976-12-06 | 1981-09-29 | Domtar Inc. | Bonding properties of mechanical pulps |
| FR2522030A1 (en) * | 1982-02-19 | 1983-08-26 | Scherb Metenett Papeteries | PROCESS FOR SELECTIVELY WHITENING PAPER PULP AND PAPER OBTAINED BY CARRYING OUT SAID METHOD |
| US5223090A (en) * | 1991-03-06 | 1993-06-29 | The United States Of America As Represented By The Secretary Of Agriculture | Method for fiber loading a chemical compound |
| DE69324337T2 (en) * | 1992-12-23 | 2005-01-05 | ECC International Ltd., Theale, Reading | Process for the treatment of waste suspensions |
| FI100729B (en) * | 1995-06-29 | 1998-02-13 | Metsae Serla Oy | Filler used in papermaking and method of making the filler |
| US6579410B1 (en) * | 1997-07-14 | 2003-06-17 | Imerys Minerals Limited | Pigment materials and their preparation and use |
| FI122074B (en) * | 2002-10-24 | 2011-08-15 | M Real Oyj | Process for making a fiber product |
| FI120463B (en) * | 2003-07-15 | 2009-10-30 | Upm Kymmene Corp | Method of making paper and paper |
| GB0413068D0 (en) * | 2004-06-11 | 2004-07-14 | Imerys Minerals Ltd | Treatment of pulp |
-
2006
- 2006-06-28 DE DE102006029642A patent/DE102006029642B3/en not_active Expired - Fee Related
-
2007
- 2007-03-22 KR KR1020087021090A patent/KR20090031848A/en not_active Application Discontinuation
- 2007-03-22 CA CA002636454A patent/CA2636454A1/en not_active Abandoned
- 2007-03-22 EP EP07723492A patent/EP2038477A1/en not_active Withdrawn
- 2007-03-22 JP JP2009516916A patent/JP2009541604A/en active Pending
- 2007-03-22 CN CNA2007800244080A patent/CN101479427A/en active Pending
- 2007-03-22 WO PCT/EP2007/002535 patent/WO2008000308A1/en active Application Filing
- 2007-03-22 BR BRPI0712858-4A patent/BRPI0712858A2/en not_active Application Discontinuation
-
2008
- 2008-10-21 US US12/254,857 patent/US20090056888A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339548A (en) * | 2013-04-26 | 2016-02-17 | 芬兰温德造纸湿部技术公司 | A method of providing fiber web making furnish with filler, and paper or paper board |
| CN105339548B (en) * | 2013-04-26 | 2017-05-03 | 芬兰温德造纸湿部技术公司 | A method of providing fiber web making furnish with filler, and paper or paper board |
| US9708772B2 (en) | 2013-04-26 | 2017-07-18 | Wetend Technologies Oy | Method of providing fiber web making furnish with filler, and paper or paper board |
| CN107190561A (en) * | 2017-07-26 | 2017-09-22 | 深圳市天橙宝投资发展有限公司 | Pulp composition and pulp composition product |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2636454A1 (en) | 2008-01-03 |
| DE102006029642B3 (en) | 2008-02-28 |
| JP2009541604A (en) | 2009-11-26 |
| US20090056888A1 (en) | 2009-03-05 |
| EP2038477A1 (en) | 2009-03-25 |
| KR20090031848A (en) | 2009-03-30 |
| BRPI0712858A2 (en) | 2012-07-31 |
| WO2008000308A1 (en) | 2008-01-03 |
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