CN1429300A - Process for making paper - Google Patents

Process for making paper Download PDF

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Publication number
CN1429300A
CN1429300A CN01809563.1A CN01809563A CN1429300A CN 1429300 A CN1429300 A CN 1429300A CN 01809563 A CN01809563 A CN 01809563A CN 1429300 A CN1429300 A CN 1429300A
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China
Prior art keywords
paper
paper pulp
pulp
polymer
cationic
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Granted
Application number
CN01809563.1A
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Chinese (zh)
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CN100374652C (en
Inventor
罗莎·M·科瓦鲁比亚斯
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Buckman Laboratories International Inc
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Buckman Laboratories International Inc
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Publication of CN1429300A publication Critical patent/CN1429300A/en
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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
    • 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
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/36—Inorganic fibres or flakes
    • D21H13/46—Non-siliceous fibres, e.g. from metal oxides
    • D21H13/48—Metal or metallised fibres
    • 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
    • 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
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide
    • 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
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing groups
    • D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised
    • 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
    • D21H21/10—Retention agents or drainage improvers

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Methods of making paper or paperboard are described. According to one method, fibrous cationic colloidal alumina microparticles and a polymer are introduced to a papermaking pulp to form a treated pulp having improved retention properties. The fibrous cationic colloidal alumina microparticles are preferably a fibrous cationic acetate salt of boehmite alumina having a zeta potential of greater than about 25 and a weight ratio of alumina to acetate of less than about 4. The polymer can be a cationic polymer, a nonionic polymer, an amphoteric polymer under cationic conditions, or combinations thereof. The pulp may also be treated with at least one coagulant, at least one flocculant, at least one cationic starch, at least one cellulytic enzyme, and/or other conventional papermaking pulp additives. The resulting pulp is formed into a sheet of pulp and then drained to form a paper or paperboard. Other papermaking processes are also described as is a papermaking apparatus for carrying out the methods. Paper and paperboard containing dried pulp that has been treated with fibrous cationic colloidal alumina microparticles and polymer are also described.

Description

Papermaking process
Technical field
The present invention relates to paper making pulp, the papermaking process that uses described paper pulp and paper and the board product that makes by described paper pulp.More particularly, the present invention relates to utilize at least a particulate that contains to keep the processing of adjuvant system to paper making pulp.
Background technology
Particulate and other particulate material are added in the paper making pulp as keeping auxiliary agent.For example, US4,798,653 (Rushmere) have described the paper making pulp of the binary mixture that comprises cellulose fibre and anionic polyacrylamide and cationic colloidal silicon dioxide gel, and this patent is hereby incorporated by.
Utilizing a problem of the particulate colloidal sol that had been used for paper making pulp already is its unstability.Owing to the unstability of the colloidal sol that uses with paper making pulp, therefore, the frequent in situ preparation of colloidal sol is so that be delivered in the paper-making process immediately.Therefore, need a kind of that use for paper-making process, stable particulate colloidal sol to keep auxiliary agent, it can form, demonstrate the very long life-span and can be delivered to the paper mill so that immediately or be used for paper-making process future at off-site.
In addition, also need in paper-making process, have even better subtitle substance retention and even the better paper making pulp of fingerprinting stress.In addition, also need to produce the paper of strength characteristics or the paper making pulp of board product with improvement.
Summary of the invention
The present invention relates to fibrous cationic colloidal alumina particulate and at least a polymer are kept as paper making pulp or slurry the purposes of adjuvant system.Fibrous cationic colloidal alumina particulate preferably can be the fibrous CATION acetate of boehmite alumina.Described fibrous product can stir by the slurries to water and alkali alumina acetate to guarantee that it mixes basically fully, makes this slurry reaction then and produces and preferably have when measuring in deionized water greater than about 25 Zeta-potential and aluminium oxide and acetate weight ratio preferably less than the fibrous CATION acetate of about 4 boehmite alumina.Preferably, the surface to volume ratio of described salt is about 50% or bigger.Described polymer can be cationic polymer, non-ionic polymers or the amphiphilic polymers that uses under the CATION condition.The cationic nitrogenous polymer that this polymer is preferably synthetic for example is a cationic polyacrylamide.If non-ionic words, polymer for example can be nonionic polyacrylamide or polyethylene glycol oxide.
The invention still further relates to paper making pulp or slurry, it comprises as fibrous cationic colloidal alumina particulate and at least a polymer of keeping adjuvant system.
Be suitable for keeping that adjuvant system is used, the fibrous boehmite alumina particulate of illustrative and comprising and pass through U.S.2 for of the present invention, 915, the available fibrous alumina product of describing among 475 (Bugosh) of method, and the product of describing among the WO97/41063, at this its full content is incorporated herein by reference.Preferably, described fibrous cationic colloidal alumina particulate be very stable, preferably have long life-span and preferably can prepare, be delivered to then the paper mill at off-site in order to using in the future.
In addition, paper pulp of the present invention or slurry can also comprise following material or handle with following material: at least a coagulating agent, at least a flocculant, at least a filler, at least a polyacrylamide, at least a cationic starch, at least a enzyme and/or other conventional paper making pulp additive.Then, make the paper pulp or the slurry that obtain form the wet pulp page or leaf, this slurry page or leaf is compared the retention performance with improvement with the l Water Paper page or leaf that is made by processed conventionally paper pulp.After drainage and drying, paper that obtains or cardboard preferably demonstrate excellent opacity and/or other physical property.
Should be understood that general explanation in front and following detailed description only are illustrative and indicative, only are to further explanation is provided as the present invention for required protection.Comprise in this application and constitute the application's part annexed drawings set forth the embodiment of several illustrative of the present invention, and, work to explain the principle of the invention with declaratives.
Description of drawings
Fig. 1 is the flow chart that shows papermaking process according to one embodiment of the present invention;
Fig. 2 is the flow chart that shows papermaking process according to another embodiment of the invention;
Fig. 3 is the flow chart that shows papermaking process according to another embodiment of the invention;
Fig. 4 is the block diagram that turbidity various illustrative and paper pulp prescription contrast is compared;
Fig. 5 shows from the paper web that the paper pulp prescription with contrast of various illustrative makes to filter the block diagram that obtains 200 milliliters of filtrate required times;
Fig. 6 shows various illustrative and the block diagram of paper pulp prescription contrast in the drainability of second;
Fig. 7 is the block diagram that shows the turbidity of various illustrative and paper pulp prescription contrast;
Fig. 8 shows various illustrative and the block diagram of paper pulp prescription contrast in the drainability of second;
Fig. 9 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 10 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 11 shows various illustrative and the block diagram of paper pulp prescription contrast in the freedom of milliliter;
Figure 12 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 13 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 14 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 15 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 16 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 17 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 18 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 19 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 20 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 21 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 22 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 23 is the block diagram that shows the %FPAR of various illustrative and paper pulp prescription contrast;
Figure 24 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 25 is the block diagram that shows the %TFPR of various illustrative and paper pulp prescription contrast;
Figure 26 shows the block diagram of discharging 400 milliliters of filtrate required times (second) from the paper web that the paper pulp prescription with contrast of various illustrative makes.
Detailed Description Of The Invention
The present invention relates to use fibrous cationic colloidal alumina particulate and mixture of polymers to keep the purposes of adjuvant system as paper making pulp.Wherein can use more than a kind of particulate and use more than a kind of polymer.The paper of prepared in accordance with the method for the present invention and cardboard preferably have the excellent opacity and/or the physical property of other hope.The pulpboard that is used to prepare paper and board product preferably has excellent water filtering performance and/or excellent paper pulp subtitle substance retention performance.
Preferably, fibrous cationic colloidal alumina particulate is the fibrous CATION acetate of boehmite alumina.Described fibrous product can obtain through the following steps: the slurries of water and alkali alumina acetate are stirred to guarantee that it mixes basically fully, make slurry reaction then and produce the fibrous CATION acetate of boehmite alumina.It is about 25 that the Zeta-potential of fibrous particles is preferably greater than, and/or preferably have and be lower than about 4 the aluminium oxide and the weight ratio of acetate.The surface to volume ratio of described salt preferably is about 50% or bigger.
When paper pulp or slurry formation l Water Paper page or leaf or paper web, described fibrous cationic colloidal alumina particulate can be to be enough to improve any amount interpolation of subtitle substance retention.Preferably, in the dry solids wt of particulate and paper pulp, the addition of described fibrous cationic colloidal alumina particulate be paper pulp per ton at least about 0.05 pound, more preferably, paper pulp per ton is at least about 0.2 pound.More preferably, in the addition of the fibrous cationic colloidal alumina particulate of the dry solids wt of paper pulp be paper pulp per ton from about 0.3 pound to about 5.0 pounds, paper pulp for example per ton is from about 0.3 pound to about 1.0 pounds.For present patent application, term " paper pulp ", " slurry " can exchange use.
Being suitable for keeping that adjuvant system is used, the fibrous boehmite alumina particulate of illustrative for the present invention comprises and is described in U.S.2,915, fibrous alumina product among 475 (Bugosh), and be described in those products among the WO97/41063, at this its full content is incorporated herein by reference.Fibrous cationic colloidal alumina particulate preferably has the benefit below one or more: they are very stable; They have the long life-span; And/or they can prepare, be delivered to then the paper mill at off-site in order to using in the future.Paper pulp of the present invention or slurry also comprise following material or use following mass treatment: at least a coagulating agent, at least a flocculant, at least a filler, at least a polyacrylamide, at least a cationic starch, at least a enzyme and/or other conventional paper making pulp additive or its combination.Then, make the paper pulp that obtains or slurry form the l Water Paper page or leaf of paper pulp or slurry, and compare retention performance with improvement with l Water Paper page or leaf without particulate or polymer.After drainage and drying, paper that obtains or cardboard preferably demonstrate excellent opacity and/or other physical property.
Preferably, after adding fibrous cationic colloidal alumina particulate, polymer is added in the paper making pulp, but also can uses the order of interpolation arbitrarily.Preferably, described polymer can be any polymer that evenness of paper pulp or paper is not had side effects.Preferably, described polymer is medium synthetic polymer to high molecular, is the CATION polymer with nitrogen for example, as cationic polyacrylamide.Described polymer can be CATION, nonionic or both sexes.If both sexes, polymer preferably uses under the CATION condition.Except that above-mentioned polymer, can also use at least a other polymer, as long as at least a other polymer does not produce significant side effects to retention performance of the present invention.Described at least a other polymer preferably can be polyamidoamines amine glycol (PAAG) polymer.
The molecular weight of described polymer is preferably about 100,000 to about 25,000,000, and more preferably from about 1,000,000 to about 18,000,000, still, other molecular weight also is possible.
Described polymer is high molecular weight linear cationic polymer or crosslinked polyethylene glycol oxide preferably.The high molecular weight linear cationic polymer of illustrative and the shearing section processing that is suitable for using for paper pulp of the present invention and method are described in U.S.4, in 753,710 and 4,913,775, at this its full content are incorporated herein by reference.
Preferably each adds before significantly shearing step polymer at paper-making process.Fibrous cationic colloidal alumina particulate can each add before or after significantly shearing step at paper-making process.According to certain embodiments of the present invention, polymer can add before the fibrous cationic colloidal particulate and before at least one obviously shears step in paper-making process.If polymer added before fibrous cationic colloidal particulate, described particulate can add before or after paper-making process is sheared step at last.Although preferably before the last clipped position of paper-making process polymer is added in the paper making pulp, this polymer also in the end adds after the clipped position.
Preferably, fibrous cationic colloidal alumina particulate forms bridge or net between various particles.Preferably, polymer moieties ground adheres on (for example absorption) particle surface to the slurry and attachment position can be provided.
By at first polymer being added in paper pulp or the slurry, making paper pulp stand shear conditions, before forming page, add fibrous cationic colloidal alumina particulate then then, and aqueous cellulosic paper making pulp or slurry are handled.As mentioned above, under the CATION condition, but polymer CATION, nonionic or both sexes.Another alternative plan is that described polymer can add simultaneously with fibrous cationic colloidal alumina particulate.
As the retention system polymer, the preferred cation polyacrylamide is discussed in more detail below.If cationic polyacrylamide is as cationic polymer, so, the molecular weight of this cationic polyacrylamide surpasses 100,000, and preferably, molecular weight is from about 1,000,000 to 18,000,000.Preferably, being combined between freedom, dehydration, subtitle substance retention, excellent sheet evenness, intensity and the anti-shearing of polymer and fibrous cationic colloidal alumina particulate provides suitable balance.
Compare with the identical paper pulp that does not contain polymer, the polymers compositions of retention system adds with the effective dose of preferred drainage that improves paper pulp or retention performance.Preferably, the addition of polymer is in the dry solids wt of polymer and paper pulp, and paper pulp per ton is at least about 0.05 pound of polymer, and more preferably, paper pulp per ton is at least about 0.1 pound.In the dry solids wt of paper pulp, the addition of polymer be paper pulp per ton from about 0.2 pound to about 2.5 pounds, but also can use other consumption.
If polymer is cationic polymer or amphiphilic polymers under the CATION condition, so, this polymer preferably adds from about 5 grams to the amount of about 500 grams in butt paper pulp per ton, more preferably from extremely about 200 grams of about 20 grams, further preferably restrain, but also can use other consumption from about 50 grams extremely about 100.
If polymer is cationic, so any cationic polymer or its mixture all can use and preferably, the conventional cationic polymer that is usually directed to papermaking can be used for paper pulp of the present invention or slurry.The example of cationic polymer is including, but not limited to cationic starch and cationic polyacrylamide polymer, the copolymer of acrylamide and cationic monomer for example, and wherein cationic monomer can be neutralization or quaternary ammonium form.The cationic nitrogenous polymer is preferred.Can be formed for cationic monomer preferred cation polymer of the present invention, illustrative with the acrylamide copolymerization comprises: the diallylamine of the aminoalkyl ester of acrylic or methacrylic acid and neutralization or quaternary ammonium form.The cationic monomer and the cationic polyacrylamide polymer of illustrative are described in U.S.4, among 894,119 (Baron, the people such as Jr.), at this its full content are incorporated herein by reference.
Described polymer also can be the polyacrylamide that is formed by comonomer, and described monomer for example comprises: 1-trimethylammonium-2-hydroxypropyl methyl acrylate sulfuric ester.Other example of cationic polymer is including, but not limited to the homopolymers and the polyamine of the homopolymers of diallyl amine monomers, acrylic-amino Arrcostab, as U.S.4, described in 894,119.Also can use the polymer of copolymer, terpolymer or higher form in addition.In addition, for the present invention, can use two or more mixture of polymers.
Polymer comprises in the embodiment of cationic polyacrylamide therein, and the nonionic acrylamide unit preferably is present in this copolymer, and its content is preferably at least about 30 moles of %, and is not more than about 95 moles of % usually.Preferably, about 5 moles of % are formed by cationic comonomer to the polymer of about 70 moles of %.
Paper making pulp or slurry can be the paper pulp or the slurries of any general type, for example, can comprise cellulose fibre, its concentration in water-bearing media be preferably in paper pulp or the slurry total dry solid content at least about 50% weight.Retention system of the present invention can be added in the mixture of many different paper making pulp, slurry or paper pulp or slurry.For example, paper pulp can comprise paper pulp fresh and/or reuse, as fresh sulfite pulp, waste stuff, leaf wood kraft pulp, needlebush kraft pulp, as described in the mixture or the like of paper pulp.
Can will keep adjuvant system before depositing to paper pulp or slurry on the papermaking wire-cloth joins in paper pulp or the slurry.Have now found that: comprise and present good dewatering during the paper pulp of keeping adjuvant system or slurry form paper web on the net.Under the shearing force condition that is applied on paper pulp or the slurry, paper pulp or slurry also present required high retention to fiber subtitle substance in the paper web product and filler.
Except that being used for of the present invention keeping the adjuvant system, paper making pulp of the present invention or slurry can also comprise particulate, for example synthetic li-montmorillonite particulate additives of other kind in addition.In any time of the inventive method, can be different from fibrous cationic colloidal alumina particulate, one or more different types of auxiliary particulate additives are added in the paper pulp.Described auxiliary particulate additives can be natural or synthetic hectorite, bentonite, zeolite, non-acidic alumina colloidal sol, perhaps the particulate additive of the known any routine of those skilled in the art.The synthetic li-montmorillonite particulate additives of illustrative comprises: derive from the LAPONITE of Laporte Industries and be described in U.S.5, the synthetic particulate in 571,379 and 5,015,334 is incorporated herein by reference its full content at this.If be included in paper pulp of the present invention or the slurry, the content of synthetic li-montmorillonite particulate additives is any effective dose, and for example, in the dry solids wt of particulate and paper pulp, paper pulp per ton is from about 0.1 pound to about 2.0 pounds.Preferably, if comprise the synthetic li-montmorillonite particulate, in the dry solids wt of paper pulp, its amount that is added in paper pulp or the slurry is counted paper pulp per ton from about 0.3 pound to about 1.0 pounds with butt, but also can use other consumption.
Keep the adjuvant system except that being used for fibrous cationic colloidal alumina particulate of the present invention, paper making pulp of the present invention or slurry can also comprise in addition: have the coagulating agent/flocculant retention system of different component with retention system of the present invention.
Paper making pulp of the present invention can also comprise and has molten fibre (cellulytic) treatment enzyme active, conventional paper making pulp.Preferably, described enzyme component also has the activity of molten hemicellulose.Suitable enzyme and contain enzymatic compositions and comprise and be described in U.S.5,356,800 (Jaquess), those among U.S.09/03 1,830 (1998.2.27 application) and the WO99/43780 are incorporated herein by reference its full content at this.The paper making pulp treatment enzyme of other illustrative is BUZYME TM2523 and BUZYME TM2524, they all derive from Buckman Laboratories International, Inc., Memphis, Tennessee.Preferred fibrinolytic enzyme composition preferably comprises the enzyme of about 5% weight to about 20% weight.Preferred enzymatic compositions can comprise polyethylene glycol, 1 in addition, and 6-hexylidene glycol, polyvinylpyrrolidone, tetrahydrofurfuryl alcohol, glycerine, water and other conventional enzymatic compositions additive are for example as U.S.5, described in 356,800.Described enzyme can any routine consumption be added in the paper pulp, as in the dry weight of paper pulp from about 0.001% weight to about 0.100% weight, for example, from about 0.005% weight to about 0.05% weight.
In the preferred embodiment of the invention, enzymatic compositions is included in paper pulp or the slurry, and comprises at least a polyamide oligomer as well as and at least a enzyme.Described polyamide exists with effective dose, so that make enzyme stabilization.Comprise enzymatic compositions polyamide oligomer as well as and enzyme, illustrative and be described among the WO99/43780, its full content is incorporated herein by reference at this.
If comprise enzymatic compositions, it can comprise the mixture of two or more different enzymes.Enzymatic compositions for example can comprise: lipase and cellulosic mixture, and can contain or not contain stabilizing agent.Described stabilizing agent can be a polyamide oligomer as well as described here.
Use for the inventive method, a kind of concrete additive is cationic starch.Cationic starch can be added in paper pulp of the present invention or the slurry, so that form the paper pulp that starch was handled.Described starch can add along the one or more positions of making paper pulp stream by papermaking apparatus of the present invention or system.For example, cationic starch can be added in the paper pulp when being added in the paper pulp with acidic aqueous alumina sol.Preferably, if use cationic starch, it can be before introducing fibrous cationic colloidal alumina particulate in the paper pulp, is added in the paper pulp or with paper pulp to combine.After paper pulp was at first with enzyme, coagulating agent or both processing, described cationic starch can alternatively or additionally be added in the paper pulp.Preferred cation starch is including, but not limited to potato starch, cornstarch and other wet end starch or its combination.
The starch of conventional amount used can be added in the paper pulp.According to the present invention, the starch consumption of illustrative is in the paper pulp dry solids wt, from about 5-about 25 pounds per ton.
Method according to using biocide in the paper-making process usually can be added into biocide in the paper pulp.For example, after with optional enzyme and polymer treatment paper pulp, biocide can be added in the paper pulp of the processing in the blending chest.The biocide that is used for paper making pulp of the present invention comprises: the biocide that those skilled in the art are known, for example derive from Buckman LaboratoriesInternational, and (Memphis, biocide Tennessee) is as BUSAN for Inc. TMBiocide.
In addition, paper pulp of the present invention or slurry can be handled with one or more other components, and described component comprises polymer, as anion and non-ionic polymers, clay, other filler, dyestuff, pigment, defoamer, pH regulator agent such as alum, microorganism kill agent, and the additive of other conventional papermaking or processing.These additives can be before fibrous cationic colloidal alumina particulate adds, during or add afterwards.Preferably, even without all also after most other additives and component are added in the paper pulp, add fibrous cationic colloidal alumina particulate.Therefore, fibrous cationic colloidal alumina particulate can be in interpolation after the adding with unconventional additive for paper making of enzyme, coagulating agent, flocculant, filler and other routine.
According to the present invention, even the interpolation of described retention system can not be all also to be to carry out on the most conventional paper machine.
Implementing the flow chart of the papermaking systems of one of the inventive method lists among Fig. 1.Should be understood that, listed system be example of the present invention in no case be limiting the scope of the invention.In the system of Fig. 1, the optional enzymatic compositions feed of desired concn is combined the paper pulp of handling with formation with making paper pulp stream.When for example by paper pulp storage bin or storage tank supply, shown paper pulp is represented paper pulp stream.Supply pulp equipment shown in Figure 1 can be conduit, storage tank or blending tank or other container, passage or the mixed zone that is used to starch stream.The supply equipment of enzymatic compositions for example can be the storage tank with the outlet that is communicated with the inlet of the paper pulp jar of handling.
The paper pulp of handling with enzymatic compositions passes through fiberizer by the slurry tank of handling, and then by blending chest, in this stock tank, optional additive, biological example kill agent can combine with the paper pulp of handling.Fiberizer has inlet that is communicated with the outlet of the paper pulp jar of handling and the outlet that is communicated with the blending chest inlet.
According to the embodiment of Fig. 1, make the paper pulp in blending chest, handled by the outlet of blending chest by an inlet that is communicated to paper machine stock tank, in paper machine stock tank, dispensable additive can combine with the paper pulp of handling.Blending chest and paper machine stock tank can be the known any general types of those skilled in the art.Paper machine stock tank guarantees the liquid level pressure head, promptly guarantees paper pulp or slurry constant compression force to handling in the system whole downstream part, particularly flow box.
By paper machine stock tank, paper pulp is delivered to the plain boiled water storage bin, be delivered to mixing pump then.The polymer of retention system of the present invention is preferably introduced in the slurry stream between storage tank and the mixing pump.The supply equipment of retention system polymer composition for example can be have with plain boiled water storage bin and mixing pump between the storage tank of the outlet that is communicated with of pipeline.When paper pulp is delivered to screen cloth by mixing pump, preferably add fibrous cationic colloidal alumina particulate.Can use with valve and the pump of introducing the routine that conventional additives uses.The paper pulp that sieved is delivered to flow box, forms l Water Paper page or leaf and drainage then on forming net.In the system of Fig. 1, the drainage slurry that is obtained by papermaking in the flow box is recycled in the plain boiled water storage bin.
In embodiment shown in Figure 2, at first between plain boiled water storage bin and mixing pump, fibrous cationic colloidal alumina particulate is added in the paper pulp of refining processing.After mixing pump and before screen cloth, add the retention system polymer.
Another embodiment of the present invention is shown among Fig. 3.The paper pulp of handling with cationic starch is made with extra care, is delivered in the blending chest, is delivered in the paper machine stock tank, is delivered in the plain boiled water storage bin then not essentially.Between plain boiled water storage bin and mixing pump, preferably the retention system polymer is added in the paper pulp.Preferably, after paper pulp passes through screen cloth and before just in flow box, forming page, add fibrous cationic colloidal alumina particulate.
Device of the present invention also can comprise and be used for providing the fibrous cationic colloidal alumina particulate of debita spissitudo or the metering device of other additive to paper pulp stream.
According to each embodiment of last Fig. 1-3, scummer, for example the centrifugal force purifier can be arranged on for example between the mixing pump and screen cloth. Embodiment
Among the embodiment, the various compositions that use in an embodiment are by simple below.In these embodiments, the component that is marked with " Octasol " is the fibrous cationic colloidal alumina particulate colloidal sol that derives from Associated Octel.When having followed numerical value, for example, Octasol 0.5, and this numeric representation is in the paper pulp dry solids wt, and paper pulp per ton is in the poundage of butt Octasol particulate.For example, ＂ Octasol 3.0 ＂ mean: in the paper pulp dry solids wt, the Octasol in 3.0 pounds of butts handles paper pulp with paper pulp per ton.The identical Octasol that has that represents with ＂ Octasol ＂ among the abbreviation of Shi Yonging " XP9 " expression and other embodiment fills a prescription in certain embodiments.Abbreviation ＂ 782 ＂ also represent with following embodiment in have an identical Octasol product with " XP9 " and " Octasol " expression.The specific Octasol product that uses among the embodiment below is by Associated Octel such as ＂ Octasol 782, and ＂ represents that exception is the Octasol product 1317 and 1318 shown in the table 8.
Among the embodiment, abbreviation " 594 " is represented BUFLOC below 594, derive from BuckmanLaboratories Intemational, Inc., described product is a high molecular weight cation polyacrylamide, mean molecule quantity from about 5,000,000 to about 7,000,000 unit and charge density be 21%.Abbreviation ＂ 5031 ＂ represent BUFLOC 5031, derive from Buckman Laboratories International Inc., described product is the low molecular weight cationic polyamine, its charge density is 100%, and molecular weight from about 100,000 to about 300,000.
Abbreviation ＂ CP3 ＂ represents POLYFLEX CP3 TM, ＂ CP2 ＂ represents POLYFLEX CP2 TM, both all derive from Buckman Laboratories International, Inc., and they are the little polymer of anion as the particulate retention system.Abbreviation ＂ 5450 ＂ and ＂ XP8-558R ＂ represent BUFLOCO 5450, derive from Buckman Laboratories International, Inc., it is the synthetic hectorite microparticle system of CATION.
Abbreviation ＂ silica ＂, ＂ 8671 ＂ and ＂ N8671 ＂ represent Powdered silica, derive from Nalco Chemical Co. with trade name ＂ Nalco 8671 ＂.Abbreviation ＂ org 21 ＂ and ＂ org ＂ represent ORGANOPOL 21, and it is the high molecular weight polyacrylamide cationic polymer to derive from Ciba Geigy, its charge density from about 20% to about 25%.Abbreviation ＂ Bentonite ＂ and ＂ Bent ＂ represent bentonite colloidal dispersion, derive from Ciba Geigy with HYDROCOL O.Abbreviation ＂ 5376 ＂ represent BUFLOC 5376, derive from Buckman Laboratories International, Inc., it be charge density be 95% and molecular weight be about 500,000 CATION diallyldimethylammonium chloride.Abbreviation ＂ 606 ＂ represent ＂ BUFLOC 606 ＂ derive from Buckman Laboratories International, Inc., it be charge density from about 30% to about 32% and molecular weight from about 14,000,000 to about anionic polyacrylamide of 18,000,000.Abbreviation ＂ 5057 ＂ represent BUFLOC 5057, derive from Buckman LaboratoriesInternational, Inc., it be charge density be 0% and molecular weight be about 15,000,000 non-ionic polyacrylamide.Abbreviation ＂ 597 ＂ represent BUFLOC 597, derive from Buckman LaboratoriesInternational, Inc., it is that charge density is 100% and the cation-modified polymine of molecular weight from about 2,000,000 to about 3,000,000.Abbreviation ＂ 5545 ＂ represent BUFLOC 5545, derive from Buckman Laboratories International, Inc., it be charge density be 30% and molecular weight from about 17,000,000 to about anionic polyacrylamide of 20,000,000.
Acronym PCC, ASA and PAC also occur among the embodiment below.Acronym PCC represents as filler, Powdered winnofil.Acronym ASA represents to comprise the sizing agent of enetutanedioic acid anhydride, as derives from Buckman Laboratories International, the Buckman 151 of Inc..Acronym PAC represents: the polymerization ammonium chloride (polyaluminum chloride) of the dimeric forms of low molecular weight, band cationic charge, derive from Buckman LaboratoriesInternational, and Inc. is as BUFLOC 5041 or BUFLOC 569.
Example I
At the contrast particulate technology of using in the conventional newsprint batching,, the performance of the fibrous cationic colloidal alumina particulate of the OCTASOL that derives from Associated Octel is tested as keeping auxiliary agent.
Method:
In paper mill, test with paper mill 1 expression.Utilization is carried out drainage to the little screen cloth that 500 milliliters of samples carry out drainage.In food mixer, mix.Utilize improved Schopper Riegler method to carry out drainage.
The equipment that improved Schopper Riegler drainage test is used comprises as follows: improved SchopperRiegler (MSR); The graduated cylinder of 1000mL scale; Stopwatch; The Plastic Drum of 5-gallon; The screen cloth that MSR uses; Dewar bottle and funnel (being used to keep); Whatman ashless filter paper (being used for ash content keeps); Nephelometer; Hemacytometer; And microscope.
Obtain sample:
The sample of testing is taken from flow box.For a plurality of tests, get enough samples.For each test, need the 1000ml sample.Because temperature is influential to drainage, therefore, test is carried out after sample takes out immediately.Keep the laboratory research that auxiliary agent carries out for utilization, batching is remained under the temperature identical with the flow box temperature.
Sample testing:
If MSR is cold and sample is hot, so, MSR is heated by the circulation of and internal hot-water outside at MSR.If there is not hot water, use cold water so.Described test is all carried out in an identical manner.But must be pointed out that MSR is on the net without any fiber or subtitle substance.Water recoils to described net before testing.Guarantee the good distribution in sample of fiber, subtitle substance and filler by in bucket, fiber slurry being stirred.In the graduated cylinder of band scale, measure the 1000ml slurries and when keeping piston downward, pour MSR into.The graduated cylinder of band scale is placed below the MSR.Unclamp piston then, meanwhile open stopwatch.Measure and write down in the required time of 100ml increment unit sample drainage.The increment unit of selected 100ml pure broken be experience.For example, for very slow slurry sample, replace with 100,150 and the drainage unit of 200ml measure.Sometimes, in order to determine initial volume test, will carry out the several times test.Polymer to different amounts in various sample compares, and, is keeping/before the drainage auxiliary agent adds, obtain the batching sample by the paper machine for this reason.With respect to blank charge ratio than drainage and the value of keeping, to determine improvements.For measuring retention performance, the filtration of MSR filtrate is passed through at 105 ℃-120 ℃ dry, preweighted filter paper in stove, and then weigh.With mg/ml record weight difference.
Based on different additive (being starch, polymer or the particulate) amount of difference batching, drainage time is compared.Drainage time depends primarily on following variable, as temperature, batching kind and refining.For each volume, to write down drainage time second.Utilize nephelometer estimation total suspended solid.Also can filter to determine suspended solid in addition filtrate.The ability of keeping of different systems can mg/ml is represented and be used to refer to the solid content of MSR filtrate, wherein should value low more, shows that the ability of keeping is good more.
For retest, materials along the same position of papermaking systems.For retest, guarantee that batch composition is identical.The retest that is not suitable for corresponding initial test is incredible.
MSR is kept clean and often water wash so that stop the accumulation of residual fiber on the MSR both sides.Periodically screen cloth is cleaned, removing pitch, and clean down with soft detergent.Check that screen cloth is to guarantee not use the net of bending or damage.All tests are all carried out with identical denseness in a like fashion.
Paper pulp or the batching that comprises 30% weight reuse corrugated board, 60% weight reuse boxboard and 10%ONP adopted in paper mill 1.The Hb conductance of paper pulp is measured as 0.4meq/L and cationic demand is arranged.The pH value of paper pulp is 7.4.The additive that combines with paper pulp comprises PCC, is 280 pounds of paper pulp per ton in its consumption of paper pulp dry solids wt.Before screen cloth, add PCC.In the position along paper plant's process, with the consumption interpolation ASA of 2.1 pounds of paper pulp per ton, wherein paper pulp is form of a slurry.Before mixing pump, add ASA.Before screen cloth, with the consumption interpolation Floc 594 of 2.6 pounds of paper pulp per ton, and after screen cloth, before flow box, with the consumption interpolation CP3 of 4.5 pounds of paper pulp per ton.
Used batching: slurry (85%TMP, the 15% broken) pH:7.6 that derives from newsprint
In polymer and paper pulp dry solids wt, the addition of polymer is constant in 1 pound of paper pulp per ton.
All particulate dosage are all in butt.
Test result is shown among the following table 1-4.In each of table 1-4, column headings ＂ 100 ＂, ＂ 150 ＂ and ＂ 200 ＂ represent the collected milliliter number that passes through the filtrate that screen cloth discharges.The second number that the filtrate of the corresponding milliliter (ml) that corresponding numeric representation is discharged and is collected by screen cloth under column headings is required.For example, in first of table 1, the paper pulp (not having the particulate retention system) so that ＂ Blank ＂ represents for 100 milliliters of filtrates discharging and be collected by forming net, needs 14 seconds; Need 32 seconds for collecting 150 milliliters of filtrates; And need 62 seconds for collecting 200 milliliters of filtrates.In table 1-4, to list in last hurdle of each table with the turbidity that NTU unit measures, the turbidity of consequently for example listing in " blank " sample in the table 1 is 232NTU.For each different sample that list and that test in table 1-4, if use particulate additives, particulate additives should be added in corresponding position identical in corresponding paper-making process, and polymer is respectively kept in identical corresponding position interpolation in corresponding paper-making process.
Therefore, OCTASOL and bentonite system work.Its performance will be better than bicomponent system (contain 594 5031/5376).Various contrasts in following table 1-4, have been listed.
The result who lists in the table 1 lists among Fig. 4 and Fig. 5 with chart.The result who lists in table 2 lists among Fig. 6 with chart.The result who lists in table 3 lists among Fig. 7 and Fig. 8 with chart.
Table 1
100 150 200 turbidity
Blank 14 32 62 232
594????????11???????26???????46??????141
5,511 11 20 36 99 Octasol, 0.5/594 12 26 46 123 Octasol, 1.0/594 11 24 43 120 Octasol, 3.0/594 10 21 36 97Octasol, 0.5/5511 8 16 29 61Octasol, 1.0/5511 8 17 32 69Octasol, 3.0/5511 8 18 31 655511/Octasol, 1.0 9 19 34 805511/Octasol, 3.0 9 23 37 83 551,1/5,450 0.5 5 11 18 42 551,1/5,450 1.0 5 10 16 44 5,450 0.5/5511 9 18 34 86 5,450 1.0/5511 10 22 37 111 bentonite 4/Org, 21 9 19 33 91 bentonite 6/Org, 21 8 16 30 88 Org, 21/ bentonite, 4 11 22 40 112 Org, 21/ bentonite 69 20 36 95
Table 2
100 150 200 turbidity
Blank 14 32 62 232
5,511 11 20 36 99Octasol, 1.0/5511 8 17 29 69 551,1/5,450 1.0 5 10 16 44 bentonite 4/Org, 21 9 19 33 91 bentonite 6/Org 21 8 16 30 88
Table 3
100 150 200 turbidity
Blank 21 48 70 232 Octasol, 1.0/594 11 24 43 120 Octasol 3.0/594 10 21 36 97
5376?1.0/594????????12???????32???????49??????138
5376?3.0/594????????13???????27???????43??????105
5031?1.0/594????????11???????35???????49??????143
5031?3.0/594????????12???????29???????46??????118
Table 4
100 150 200 turbidity
Blank 21 43 70 232 Octasol, 1.0/594 12 26 47 126 Octasol 3.0/594 11 25 45 109
5376?1.0/594????????12???????27???????49??????138
5376?3.0/594????????13???????25???????43??????105
5031?1.0/594????????11???????28???????49??????143
5031?3.0/594????????12???????29???????46??????118Octasol?1.0/5511Octasol?3.0/5511????????12???????25???????47??????116???5376?1.0/5511???5376?3.0/5511????????11???????24???????44??????127???5031?1.0/5511???5031?3.0/5511???5450?1.0/5511?????????8???????18???????30???????88
Example II
At contrast particulate technology, the performance of OCTASOL particulate is tested.
Method:
Test in different industrial paper mills.
The information of relevant used each paper pulp is shown in the appended chart.
The component of batching or paper pulp is listed in the chart shown in appended Fig. 9-12.For the described paper pulp of table 5, %TFPR and %FPAR the results are shown in the table 5.The result of table 5 lists among Fig. 9 and Figure 10 with chart.For various samples, the freedom test result is listed in the table 6 and with chart and is listed among Figure 11.Table 7 shows the %TFPR of another paper pulp.The result who lists in table 7 lists among Figure 12 with chart.
Therefore, medium charged sample OCTASOL (XP9) is with operational excellence.The old performance with new sample of XP9 is basic identical, demonstrates good particulate collosol stability.These results show: OCTASOL is for alkaline fine paper operational excellence.
Table 5
Top layer
20% clean blank sheet of paper limit
40% print white account-book 40% loose split newsprint
PH-7.9 cationic demand-.6meq/L
％TFPR????????％FPAR
Blank 30.3 12.5
594?1????????73.4??????????30.2
XP9?1/594?1????????81.9??????????37.4
XP9?2/594?1????????83.6??????????40.2
XP9?5/594?1????????85.1??????????42.3
594?1/CP3?1????????81.2??????????39.2
594?1/CP3?2????????84.3??????????41.8
5450?1/594?1????????79.8??????????37.9
594?1/5450?1????????76.7??????????36.4
594 1/ silica 1s 79.8 36.1
594 1/ silica 3 81.2 36.4
Org/Bent?4????????74.6??????????30.4
Org/Bent?6????????75.9??????????33.1
Table 6
Freedom ml
Blank 510
5941?1b????????????????590
5942?1b????????????????630
0.5XP9/594?1????????????????610
1?XP9/594?1????????????????630
2?XP9/594?1????????????????640
594?1XP9?1????????????????620
594?1/5450?0.5????????????????600
594?1/5450?1????????????????610
5450?1/594?1????????????????610
594 1/ silica 1s 590
594 1/ silica 3 610
Org2?1/Bent?4????????????????540
Org2?1/Bent?6????????????????560
594?1/CP3?1????????????????610
594?1/CP3?2?????????????620
XP9?1/606?1?????????????580
5031?2/594?1?????????????6005031?1/XP9?1/594?1?????????????6005031?2/XP9?1/594?1?????????????620
Table 7
Bottom 100%
ONP
pH7.85
Cationic demand
0.55meq/l
％TFPR
Blank 36.1
594?1.4?????????????53.6
5450?1/594?1.4?????????????58.4
594?1.4/5450?1?????????????55.1
XP9?1/594?1.4?????????????53.8
XP9?2/594?1.4?????????????54.6
Bent?4/Org.5?????????????49.9
Bent 6/Org.5 52.1 594 1.4/ silica 1s 53.9 594 1.4/ silica 3 54.6
594?1.4/CP2?1???????????????54
594?1.4/CP2?2?????????????54.9
Table 8 shows the %TFPR result of various test samples.In table 8, the sample that is marked as " PAC first " is: the sample that added before retention system polymer and particulate of PAC wherein.The result of table 8 lists among Figure 13 with chart.List in table 8 and be shown among Figure 13 the result as the sample of comfortable paper mill 2 operations.Figure 14-16 shows: various other test results that get the sample of comfortable paper mill 2 operations.
In the paper mill 2, the various paper pulp for describing on the chart shown in Figure 13-16 with consumption per ton 280 pounds, are added into PCC in the paper pulp before screen cloth.Paper pulp is a certain position in the paper-making process of thin pulp therein, with consumption per ton 2.1 pounds ASA is added in the paper pulp.Before screen cloth, add BUFLOC with consumption per ton 2.6 pounds 594.After screen cloth, add CP3 with consumption per ton 2.3 pounds.Before flow box, add PAC with consumption per ton 4.5 pounds.The interpolation of these additives is all in butt, and in the dry solids wt of paper pulp.
Table 8
％TFPR
????2 ????594 ????2.6 ????CP3 ??2.30 ?86.9％ ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first
????5 ????5545 ????1 ????782 ??1.00 ?81.8％
????9 ????5545 ????0.5 ????782 ??1.00 ?80.6％
????12 ????5545 ????1.0 ????1318 ??1.00 ?80.6％
????14 ????5545 ????1.0 ????8671 ??1.00 ?80.3％
????10 ????5545 ????1.0 782 is old ??1.00 ?80.0％
????3 ????594 ????2.6 ????CP3 ??2.30 ?79.8％
????6 ????5545 ????0.5 ????782 ??1.00 ?79.4％
????8 ????594 ????1.3 ????782 ??2.00 ?79.4％
????11 ????5545 ????1.0 ????1317 ??1.00 ?79.2％
????13 ????5545 ????1.0 ????5450 ??1.00 ?78.6％
????4 ????5545 ????1 ????782 ??1.00 ?77.8％
????7 ????594 ????1.3 ????782 ??1.00 ?76.8％
????1 Do not have ?73.3％
????15 ????5545 ????1.0 ????782 ????1 ??81.4％ ????2.25lb/t ????PAC?first ????4.5lb/t ????PAC?first ????4.5lb/t ????PAC?first ????2.25lb/t ????PAC?first ????2.25lb/t ????PAC?first ????4.5lb/t ????PAC?first ????2.25lb/t ????PAC?first ????4.5lb/t ????PAC?first ????2.25lb/t ????PAC?first ????4.5lb/t ????PAC?first ????2.25lb/t ????PAC?first ????4.5lb/t ????PAC?first
????16 ????5545 ????1.0 ????782 ????3 ??81.3％
????17 ????5545 ????1.0 ????782 ????1 ??80.1％
????18 ????5545 ????1.0 ????782 ????3 ??79.4％
????19 ????5545 ????1.0 ????782 ????2 ??79.4％
????20 ????5545 ????1.0 ????782 ????2 ??79.0％
????21 ????5545 ????0.5 ????782 ????2 ??77.8％
????22 ????5545 ????0.5 ????782 ????1 ??76.4％
????23 ????5545 ????0.5 ????782 ????1 ??75.6％
????24 ????5545 ????0.5 ????782 ????2 ??75.5％
????25 ????5545 ????0.5 ????782 ????3 ??74.7％
????26 ????5545 ????0.5 ????782 ????3 ??74.6％
In the paper mill 3, utilize the Hb conductance be 420 and pH be 8.5 paper pulp, various samples are tested.The grade of paper pulp is 20 pound weight grades of Snowland India paper.The component of various samples is shown in accompanying drawing 17 and 18, and 3 offer the paper pulp of all samples and each component of additive also provides therein in the paper mill.Additive that use and that figure in Figure 17 and 18 comprises in paper mill 3: with the PCC of consumption interpolation per ton 160 pounds, titanium dioxide with consumption interpolation per ton 280 pounds, HERCON79 with consumption interpolation per ton 7.8 pounds, with the CATO232 starch that adds with consumption per ton 17 pounds, wherein all consumptions are benchmark in butt and with the dry solids wt of paper pulp all.In addition, before screen cloth, add BUFLOC with consumption per ton 0.5 pound 594 and before screen cloth, add POLYFLEX CP2 with consumption per ton 0.98 pound TM
In the paper mill 4, the paper pulp with Figure 19 and 20 described components and performance is carried out modification and tests.Before main mixing pump, the consumption with 15 pounds of paper pulp per ton is added into the HYDREX additive in the paper pulp.At paper machine stock tank place, the consumption with 25 pounds of paper pulp per ton is added into CATO15A starch in the paper pulp.At the blending chest place, add alum and add V-BRITE with the consumption of 20 pounds of paper pulp per ton with the consumption of 6 pounds of paper pulp per ton.After screen cloth, with the consumption interpolation ACCURAC 182 of 0.28 pound of paper pulp per ton.All additives are all in butt, and paper pulp per ton is all based on the dry solids wt of paper pulp.%TFPR for each sample of testing all lists among Figure 19 with the component of the retention system of each sample of testing.The %FPAR and the component of each sample retention system of testing are shown among Figure 20.
In the paper mill 5, also uncoated acidic paper is tested.The 5 pairs of paper pulp carries out in the paper mill keeps the results are shown among Figure 21-23 of test.Listing the component of the paper pulp result, that tested and the performance of paper pulp thus in Figure 21-23 is shown among Figure 22 and Figure 23.The same with other embodiment that lists at this, in the example of testing as paper mill 5, wherein each component of paper pulp adds to more than 100%, and this percentage will be understood that it is parts by weight, rather than percetage by weight.
In paper mill 5, the additive that combines with paper pulp comprises: the HYDREX filler that adds with the consumption of 60 pounds of paper pulp per ton, the CATO215 starch that adds with the consumption of 20 pounds of paper pulp per ton, the alum that adds with the consumption of 22 pounds of paper pulp per ton, wherein all consumptions are all in butt and based on the dry solids wt of paper pulp.After screen cloth, with the consumption interpolation ACCURAC182 (ACC182) of 0.3 pound of paper pulp per ton.Before screen cloth, with the consumption interpolation NALCO8671 of 0.5 pound of paper pulp per ton.When this process finishes but before forming net, add ACC182 per ton 0.6 pound in addition again.0.3 pound of ACC of interpolation per ton is equivalent to add 0.94 pound of wet product.0.5 pound of NALCO8671 of interpolation per ton is equivalent to add 3.3 pounds of wet products.0.6 pound of ACC182 per ton of Tian Jiaing is equivalent to add 1.9 pounds of wet products at last.
EXAMPLE III
At the particulate technology in the alkaline fine paper, the OCTASOL particulate is tested as the performance of keeping auxiliary agent.
Method:
Utilize the little screen cloth of discharging 700 milliliters of samples, carry out drainage and keep test.In food mixer, mix.700 milliliters sample is used for drainage and keeps test.
Carry out Britt Jar test with 750rpm.
Utilize improved Schopper Riegler to carry out the drainage test.
Used batching: 70%HWD freedom about 450
30％SWD???????pH8.3
Be added into the chemical agent in the batching: 30%PCC
5 pounds of cationic starches of dried solid per ton (Sta-lock 400).
Based on the dry solids wt of polymer and paper pulp, polymer adds with the consumption of 1 pound of paper pulp per ton.
The OCTASOL dosage of this test usefulness is that calculate on the basis with received (the particulate solution of 15% weight).
6 pairs of senior paper pulp of alkalescence (batching) are tested and are measured and collect 200,300 and 400 milliliters of filtration times that filtrate is required respectively in the paper mill.The %TFPR value of many various sample is listed in Figure 24 and 25 with chart.For many different samples, collect 400 milliliters of required drainage times (second) of filtrate and list among Figure 26.Being used for obtaining the data that are shown in the graph results among Figure 24-26 is listed in the table below among the 9-12.
It is constant in 1lb/T that table 9OCTASOL tests alkaline high gradating material dose of polymer
200??????????300????????400
Blank 8 12 60 Octasol, 0.5/594 48 28 Octasol, 1.0/594 49 23 Octasol, 3.0/594 48 18 594/Octasol, 0.5 5 11 45 594/Octasol, 1.0 4 10 30 594/Octasol, 3.0 4 12 27 Octasol, 0.5/606 5 13 42 Octasol, 1.0/606 4 11 30 Octasol, 3.0/606 4 10 25 606/Octasol, 0.5 4 15 45 606/Octasol, 1.0 4 13 31 606/Octasol, 3.0 4 12 28 Octasol, 0.5/5057 49 37 Octasol, 1.0/5057 4 10 30 Octasol, 3.0/5057 4 11 27 5057/Octasol, 0.5 4 11 43 5057/Octasol, 1.0 4 11 35 5057/Octasol, 3.0 4 10 29 Octasol, 0.5/597 49 38 Octasol, 1.0/597 4 11 26 Octasol, 3.0/597 4 10 26 597/Octasol, 1.0 4 12 34 597/Octasol 3.0 4 11 25
594/CP3?0.5??????????????4????????????9?????????29
594/CP3?1.0??????????????4????????????7?????????18
594/CP3?3.0??????????????4???????????10?????????22?594/XP8-558R?0.5??????????????3????????????6?????????25?594/xP8-558R?1.0??????????????3????????????6?????????17594/XP8-558R??3.0??????????????3????????????7?????????23
XP8?0.5/594??????????????3????????????8?????????28
XP8?1.0/594??????????????3????????????7?????????19
Table 10
TFPR
Blank 65.7
594???????????????76.8?Octasol?1.0/594???????????????84.7?Octasol?3.0/594???????????????86.5
5031?1.0/594???????????????78.4
5031?3.0/594???????????????82.9
5376?1.0/594???????????????79.7
5376?3.0/594?????????????????80
594/CP3?1.0???????????????84.5
594/CP3?3.0???????????????86.6
594/5450?1.0???????????????84.9
59,4/5,450 3.0 85.1 594/N8671,1.0 80.3 594/N8671,3.0 84.6 594/ bentonites, 4.0 79.9 594/ bentonites 6.0 82.9
Table 11594/Microfloc 1.0 92.8594/Microfloc 3.0 95.7
5031?1.0/606??????????????78.9
5031?3.0/606??????????????81.2
5376?1.0/606??????????????78.9
5376?3.0/606??????????????80.8
Table 12
200??????????300?????????400
Blank 8 12 60 Octasol, 0.5/594 48 28 Octasol, 1.0/594 49 23 Octasol 3.0/594 48 18
594/CP3?0.5???????????????4????????????9??????????29
594/CP3?1.0???????????????4????????????7??????????18
594/CP3?3.0???????????????4???????????10??????????22594/XP8-558R?0.5???????????????3????????????6??????????25594/XP8-558R?1.0???????????????3????????????6??????????17594/XP8-558R?3.0???????????????3????????????7??????????23
XP8?0.5/594???????????????3????????????8??????????28
XP8?1.0/594???????????????3????????????7??????????19
When comparing with the test of being carried out, utilize BUFLOC with at present feasible particulate technology 594 have obtained comparable result with the combination of fibrous cationic colloidal alumina particulate.
When utilizing anion or nonionic PAM to compare, utilize cationic polyacrylamide (PAM) to combine with OCTASOL, obtained more performance.Proved already that it will be more effective adding OCTASOL before PAM.
Method and apparatus of the present invention provides excellent water filtering performance and/or subtitle substance retention performance.The final paper of prepared in accordance with the method for the present invention and cardboard demonstrate the excellent opacity and the physical property of other hope.
For those skilled in the art, it is evident that, do not breaking away under the spirit or scope of the present invention, can make various improvement and change to embodiment of the present invention.Therefore, can be contemplated that the present invention has covered other improvement in the scope of appended claims and equivalent thereof, of the present invention and change.

Claims (23)

1. the preparation method of paper or cardboard comprises:
To introduce in the described paper making pulp in the fibrous cationic colloidal alumina particulate introducing paper making pulp and with at least a polymer, thereby form the paper pulp of handling, described polymer is included in cationic polymer, non-ionic polymers or amphiphilic polymers or its mixture under the CATION condition; With
Make the paper pulp of handling form paper or cardboard.
2. the process of claim 1 wherein that described fibrous cationic colloidal alumina particulate comprises: the fibrous CATION acetate of boehmite alumina, its Zeta-potential greater than about 25 and the weight ratio of aluminium and acetate less than about 4.
3. the process of claim 1 wherein that described fibrous cationic colloidal alumina particulate comprises: the fibrous CATION acetate of boehmite alumina.
4. the process of claim 1 wherein that described fibrous cationic colloidal alumina particulate comprises: about 0.5% weight is to the Al of about 30% weight 2O 3
5. the process of claim 1 wherein,, with the consumption of butt, described fibrous cationic colloidal alumina particulate is added in the described paper pulp at least about 0.05 pound in paper pulp per ton based on the dry solids wt of paper pulp.
6. the process of claim 1 wherein, based on the dry solids wt of paper pulp, in paper pulp per ton with butt from about 0.3 pound to about 5.0 pounds consumption, described fibrous cationic colloidal alumina particulate is added in the described paper pulp.
7. the process of claim 1 wherein to have described cationic polymer, and comprise synthetic cationic nitrogenous polymer.
8. the process of claim 1 wherein to have described cationic polymer, and comprise cationic polyacrylamide.
9. the process of claim 1 wherein and before introducing described polymer in the described paper pulp, described fibrous cationic colloidal alumina particulate is added in the described paper making pulp.
10. the process of claim 1 wherein in the substantially the same time, described fibrous cationic colloidal alumina particulate and described polymer are introduced in the described paper making pulp.
11. the method for claim 1 also comprises in addition: before introducing described fibrous cationic colloidal alumina particulate in the described paper pulp, at least a cationic starch is mixed with described paper making pulp.
12. the process of claim 1 wherein that described paper pulp comprises sulfite pulp.
13. the method for claim 9, wherein said polymer is: comprise acrylamide unit and cationic monomer unit, synthetic, water-soluble cationic polymer.
14. the method for claim 1 also comprises at least a fibrinolytic enzyme is added in the described paper pulp in addition.
15. the method for claim 1 also comprises in addition: before introducing described fibrous cationic colloidal alumina particulate in the described paper pulp, at least a fibrinolytic enzyme is added in the described paper pulp.
A 16. paper or cardboard that makes according to the method for claim 1.
17. papermaking apparatus, comprise: the supply equipment of fibrous cationic colloidal alumina particulate, the supply equipment of paper making pulp, fibrous cationic colloidal alumina particulate is conducted to the device of paper making pulp supply equipment from fibrous cationic colloidal alumina particulate supply equipment, the supply equipment of retention system polymer, the retention system polymer is conducted to paper pulp or the device of the paper pulp handled from the supply equipment of retention system polymer, and after with described fibrous cationic colloidal alumina particulate and described retention system polymer treatment, make paper pulp form the device of paper or cardboard, wherein, described retention system polymer is the cationic polymer under the CATION condition, non-ionic polymers, or amphiphilic polymers, or its mixture.
18. the device of claim 17, wherein, the described device that is used to form paper pulp comprises: the blending chest that is communicated with the described supply equipment of the paper pulp of handling, the mixing pump that is communicated with blending chest, the screen cloth that is communicated with described mixing pump and the flow box that is communicated with described screen cloth.
19. the device of claim 18 wherein, provide gravitation tank with the charging of preservation paper pulp, and the connection between described gravitation tank and described blending chest comprises: the defibrination device that before entering blending chest paper pulp is carried out defibrination.
20. the device of claim 18 also comprises the plain boiled water storage bin in addition, wherein said plain boiled water storage bin has: the inlet that is communicated with described blending chest, the inlet that is communicated with described flow box and the outlet that is communicated with described mixing pump.
21. the device of claim 20 also comprises one or more fiberizers that are used for before described flow box forms paper pulp paper pulp being carried out defibrination in addition.
A 22. paper or cardboard that makes by the paper web of drainage, described paper web comprises the paper pulp of handling, the paper pulp of described processing comprises cellulose fibre, fibrous cationic colloidal alumina particulate and at least a retention system polymer, and described retention system polymer is included in cationic polymer, non-ionic polymers, amphiphilic polymers or its mixture under the CATION condition.
23. the paper of claim 22 or cardboard, wherein said fibrous cationic colloidal alumina particulate comprises: the fibrous CATION acetate of boehmite alumina, and its Zeta-potential is greater than about 25, and the weight ratio of aluminium and acetate is less than about 4.
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