CN1237228C - Sizing dispersion - Google Patents
Sizing dispersion Download PDFInfo
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- CN1237228C CN1237228C CNB018137164A CN01813716A CN1237228C CN 1237228 C CN1237228 C CN 1237228C CN B018137164 A CNB018137164 A CN B018137164A CN 01813716 A CN01813716 A CN 01813716A CN 1237228 C CN1237228 C CN 1237228C
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- starch
- condensation
- sizing agent
- aromatic
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
- D21H23/765—Addition of all compounds to 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
- 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
- D21H21/14—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 function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
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- Paper (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention refers to an aqueous sizing dispersion comprising a sizing agent, starch having aromatic groups and a condensed sulfonate, wherein the starch contains less than 95 weight % of amylopectin and a method of sizing paper comprising adding an aqueous sizing dispersion to a cellulosic dispersion which has a conductivity of at least 0.5 mS/cm.
Description
Invention field
The present invention relates to comprise the aqueous dispersion of the sizing agent of the starch that has aromatic group that contains the following amylopectin of 95wt% and condensation sulphonic acid ester.The present invention comprises the method for preparing aqueous dispersion and the aqueous dispersion purposes as paper stock or top sizing material in addition.
Background technology
In papermaking, use the aqueous dispersion or the emulsion of sizing agent, so that obtain to have wetting and infiltrative paper of improved anti-various liquid and cardboard.
The dispersion of sizing agent generally contains water and is dispersed in the minuteness particle or the drop of sizing agent wherein.Dispersion usually by use high shear force and quite high temperature in the presence of dispersant at aqueous phase homogenizing sizing agent, water-insoluble materials prepares.Normally used dispersant comprises anion, both sexes and cation high molecular weight polymers, for example sulfonated oil, starch, polyamine, daiamid and vinyl addition polymer.These polymer can be separately, unite use together or with other compound, forms dispersant system.The total of component of depending on dispersant system feeds in raw material, and size dispersions will be anion or cationic property.Size dispersions is added in the water slurry that contains cellulose fibre, optional filler and various additives usually.
Cellulose suspension contains a certain amount of non-fibrous material, for example filler, colloidal substance, electropolymer and various charged contaminants, i.e. anion refuse, electrolyte, electropolymer etc.Charged contaminants to applying glue efficient had the influence and ordinary loss sizability.The a large amount of charged contaminants in suspension such as the salt of high-load make suspension be difficult to applying glue increasingly, promptly are difficult to obtain to have the paper of satisfactory sizability.Other compound that contains in the suspension of unfavorable applying glue is various lipophilicity wood extractives, and they can come from recycled fibers and mechanical pulp.The sizing agent that adds increment has usually improved applying glue, yet, caused the higher and accumulation increase of sizing agent in plain boiled water of cost.Non-fibrous material and any other component of in suspension, existing be accumulated in the wherein a large amount of recirculation of plain boiled water, and only a spot of fresh water is incorporated in the grinding machine in the paper technology even more remarkable.Therefore, the objective of the invention is further to improve applying glue.Another object of the present invention is to improve applying glue when to cellulose suspension applying glue with high conductivity.A further object of the present invention is to improve the stability of dispersion.Other purpose of the present invention will occur hereinafter.
Summary of the invention
Specifically, the invention discloses following content:
1. applying glue aqueous dispersion, comprise sizing agent, have the starch and the condensation sulphonic acid ester of aromatic group, wherein the condensation sulphonic acid ester is the aromatic sulfonic acid of being derived by the aromatic compounds in the product that is selected from naphthalene, naphthalene and cresols, diphenyl ether, toluene, cumene, cresols and the phenol and the condensation product of aldehyde, and starch contains the following amylopectin of 95wt%.
2. according to the applying glue aqueous dispersion of heading 1, wherein said starch has following general formula:
Wherein P is the residue of starch; A is the atomic link that comprises C and H atom that N is connected in polysaccharide residue radical, R
1And R
2Each is H or alkyl naturally, R
3Be aromatic hydrocarbyl, n is 2 to 300,000 integer, and X
-It is anionic counter-ion.
3. according to the applying glue aqueous dispersion of heading 1 or 2, wherein starch contains the following amylopectin of 90wt%.
4. according to the applying glue aqueous dispersion of heading 1 or 2, wherein the condensation sulphonic acid ester is the condensation product of aromatic sulfonic acid and formaldehyde.
5. according to the applying glue aqueous dispersion of heading 1 or 2, wherein the condensation sulphonic acid ester is the condensation product of naphthalene sulfonic acids and formaldehyde.
6. according to the applying glue aqueous dispersion of heading 1 or 2, wherein sizing agent is the cellulose reactive sizing agent.
7. the glue applying method of paper, comprise and to contain sizing agent, contain the starch with aromatic group of the following amylopectin of 95wt% and the applying glue aqueous dispersion of condensation sulphonic acid ester joins in the water slurry that contains cellulose fibre, on papermaking wire-cloth, form and dewatered suspension, wherein suspension has the conductance of 0.5mS/cm at least, and described condensation sulphonic acid ester is the aromatic sulfonic acid of being derived by the aromatic compounds in the product that is selected from naphthalene, naphthalene and cresols, diphenyl ether, toluene, cumene, cresols and the phenol and the condensation product of aldehyde.
8. according to the glue applying method of the paper of heading 7, wherein said starch has following general formula (I):
Wherein P is the residue of starch; A is the atomic link that comprises C and H atom that N is connected in polysaccharide residue radical, R
1And R
2Each is H or alkyl naturally, R
3Be aromatic hydrocarbyl, n is 2 to 300,000 integer, and X
-Be anionic counter-ion, this starch contains the following amylopectin of 95wt%.
9. according to the glue applying method of the paper of heading 7 or 8, wherein suspension has the conductance of 3.5mS/cm at least.
10. according to the glue applying method of the paper of heading 7 or 8, wherein starch contains the following amylopectin of 90wt%.
11. according to the glue applying method of the paper of heading 7 or 8, wherein the condensation sulphonic acid ester is the condensation product of naphthalene sulfonic acids and formaldehyde.
12. according to the glue applying method of the paper of heading 7 or 8, wherein sizing agent is the cellulose reactive sizing agent.
Detailed Description Of The Invention
According to the present invention, be surprisingly found out that improved applying glue can obtain by enough aqueous dispersions according to claim.More particularly, the present invention includes the aqueous dispersion of sizing agent of the condensation product of the starch that contains the following amylopectin of 95wt% and aromatic sulfonic acid and aldehyde with aromatic group.The present invention also comprises the method for preparing aqueous dispersion and this dispersion purposes as paper stock applying glue material and top sizing material in addition.
Sizing agent according to dispersion of the present invention is suitably any known sizing agent, as the non-cellulose reactive reagent, comprise rosin, for example disproportionated rosin, Foral, newtrex, the rosin of formaldehyde treated, esterified rosin, the mixing of the rosin that fortified rosin and these are handled and so handled, the derivative of aliphatic acid and they, for example fatty acid ester and acid amides such as two-stearmide, resin and their derivative, hydrocarbon resin for example, resin acid, resinate and acid amides, wax, for example thick and fully refined paraffin wax, synthetic wax, naturally occurring wax etc., and/or cellulose reactive reagent.Preferably, sizing agent is the cellulose reactive sizing agent.Can from any cellulose reactive reagent known in the art, be chosen in the cellulose reactive sizing agent that comprises in the size dispersions.Aptly, sizing agent is from hydrophobic ketenes dimer, the ketenes polymer, and acid anhydrides, organic isocyanate is selected optimal ethylene ketone dimer, most preferably ketenes dimer in carbamoyl chlorine and their mixture.The ketenes dimer that is fit to has following general formula (I), wherein R
1And R
2Represent saturated or unsaturated alkyl, common saturated hydrocarbons, alkyl is fit to have 8-36 carbon atom, normally has the straight or branched alkyl of 12-20 carbon atom, as cetyl and octadecyl.The ketenes dimer can be at ambient temperature, and promptly at 25 ℃, suiting at 20 ℃ is liquid.The acid anhydrides that is fit to can characterize with following general formula (II), wherein R
3And R
4Can be identical or different, the suitable saturated or unsaturated alkyl that contains 8-30 carbon atom of expression, perhaps R
3And R
4Can form 5-6 unit ring with-C-O-C-structure division, optionally further be contained at the most that the alkyl of 30 carbon atoms replaces.The example of the acid anhydrides of industrial use comprises alkyl and enetutanedioic acid anhydride and especially different vaccenic acid base succinic anhydride.
The ketenes dimer that is fit to, acid anhydrides and organic isocyanate are included in U.S. patent No.4, disclosed compound in 522,686, this patent is here as with reference to introducing.The example of the carbamoyl chlorine that is fit to is included in U.S. patent No.3, and those disclosed in 887,427, this patent are also here as with reference to quoting.
The starch that contains in dispersion according to the present invention has aromatic group and the amylopectin that contains below the 95wt%.Starch mainly contains two kinds of components, i.e. amylose and amylopectin.Amylose is a linear polymer, and amylopectin is the branched polymer of molecular weight apparently higher than the molecular weight of amylose.Preferably, aromatics starch has below the 92wt%, more preferably following the and more preferably following amylopectin content of 85wt% also of 90wt%.It is the cationic starch with aromatic group that the starch that comprises in dispersion of the present invention is fit to, and promptly this cationic starch has at least one aromatic group and at least one cation group, and it is uncle's amino group that cation group is fit to, or preferred quaternary ammonium group.This starch can also contain one or more anionic groups, for example can be phosphate radical, phosphonate radical, and sulfate radical, sulfonate radical or hydroxy-acid group, they are phosphate groups preferably.If present, anionic group can be original the existence, perhaps introduces by chemical treatment in due form.Natural potato starch contains a large amount of covalent bond phosphate monoester groups.In amphoteric starch, cation group preferably exists with main amount.
The aromatic group of starch can be connected in hetero atom, for example nitrogen or oxygen, and hetero atom is optional can be charged, for example when it is nitrogen.Aromatic group can also be connected in and comprise heteroatomic group, acid amides for example, and ester or ether, this group can be connected in the polysaccharide skeleton (main chain) of starch, for example through atomic link.The aromatic group that is fit to and comprise that the examples of groups of aromatic group comprises aryl and aralkyl, phenyl for example, phenylene, naphthyl, phenylene, penylene dimethyl, benzyl and phenethyl; Nitrogenous aromatic group (aryl), for example pyridine and quinoline, and the derivative of these groups, the one or more substituting groups that wherein are connected in described aromatic group can be selected from hydroxyl, halogen, chlorine root for example, nitro and have the alkyl of 1-4 carbon atom.
The starch that especially is fit to that comprises in size dispersions comprises have general formula those of (I):
Wherein P is the residue of starch-polysaccharides; A is the group that N is connected in polysaccharide residue radical, be suitably for and comprise C and H atom, with optional O and/atomic link of N atom, usually the alkylidene that has a 2-18 and a suitable 2-8 carbon atom, optional one or more hetero atoms (for example O or N) or quilt this one or more hetero atoms replacements, for example alkylidene oxygen base or hydroxy propylidene (CH of inserting
2-CH (OH)-CH
2-); R
1And R
2The H that respectively does for oneself, or preferred alkyl, being fit to is to have 1-3 carbon atom, the alkyl of 1 or 2 carbon atom that suits; R
3Be the aromatic hydrocarbyl that comprises aralkyl, for example benzyl and phenethyl; N is about 2 to about 300,000, suitable 5-200,000 and preferred 6-125,000 integer, perhaps R in addition
1, R
2And R
3Form the aromatic group that contains 5-12 carbon atom with N; And X
-Be anionic counter-ion, common halogen root such as chlorine root.
Aromatic group modified cation or amphoteric starch can have the substitution value that changes in wide region; CATION substitution value (DS
C) can be 0.01-0.5, suitable 0.02-0.3, preferred 0.025-0.2, aromatics substitution value (DS
H) can be 0.01-0.5, suitable 0.02-0.3, preferred 0.025-0.2, and anion substitution value (DS
A) can be 0-0.2, suitable 0-0.1, preferred 0-0.05.
These starch can for example prepare by this reagent and starch are reacted in the presence of alkaline matter such as alkali metal or alkaline earth metal hydroxide by with one or more reagent that contain cation group and/or aromatic group starch being carried out CATION and aromatic modified by known way.Carrying out CATION and aromatic modified starch can be nonionic, anion, both sexes or cationic.The modifier that is fit to comprises non-ion reagent, for example the succinic anhydride of aromatics replacement; Aralkyl halide, for example benzyl chloride and benzyl bromide a-bromotoluene; Chloropropylene oxide and having comprises as the product of at least one substituent dialkylamine of the aromatic group of above definition, comprises 3-dialkyl amido-1,2 epoxy prapane; And cation reagent, for example chloropropylene oxide and having comprises as the product of at least one substituent tertiary amine of the aromatic group of above definition, comprises trialkylamine, alkaryl dialkylamine, for example dimethyl benzyl amine; Arylamine, for example pyridine and quinoline.This cationoid reagent that is fit to comprises 2,3-glycidyl trialkyl ammonium halide and halogenated hydroxyl propyl group trialkyl ammonium halide, N-(3-chloro-2-hydroxypropyl)-N-(hydrophobic alkyl)-N for example, N-two (low alkyl group) ammonium chloride and N-glycidyl-N-(hydrophobic alkyl)-N, N-two (low alkyl group) ammonium chloride, wherein aromatic group as defined above, octyl group especially, decyl and dodecyl and low alkyl group are methyl or ethyl; With halogenated hydroxyl propyl group-N, N-dialkyl group-N-alkaryl halogenation ammonium and N-glycidyl-N-(alkaryl)-N, the N-dialkylammonium chloride, N-(3-chloro-2-hydroxypropyl)-N-(alkaryl)-N for example, N-two (low alkyl group) ammonium chloride, wherein alkaryl and low alkyl group as defined above, N-(3-chloro-2-hydroxypropyl)-N-benzyl-N especially, N-alkyl dimethyl ammonium chloride; With chlorination N-(3-chloro-2-hydroxypropyl) pyridiniujm.Generally, when using nonionic aromatics reagent, starch is fit to by using any cation reagent known in the art to become CATION before or after hydrophobically modified.The CATION that is fit to and/or aromatic modified dose, the starch of aromatic group modification and their preparation method's example is included in U.S. patent Nos.4,687,519 and 5,463,127; International Patent Application WO 94/24169, european patent application No.189 935; And S.P.Patel, R.G.Patel and V.S.Patel, Starch/St rke, 41 (1989), No.5, those described in the pp.192-196, they be taught in introduce here for reference.
Starch (being suitably for CATION or amphoteric starch) can be present in the dispersion with the amount that changes in the tolerance, this amount especially depends on the molecular weight of compound, the ion substitution value of compound, i.e. charge density, the total reinforced and used hydrophobic material of required dispersion.Starch can be with 100wt% at the most, and the amount of suitable 0.1-35wt% and preferred 1-30wt% exists, based on hydrophobic material.
The condensation product that comprises condensation sulphonic acid ester such as aromatic sulfonic acid and aldehyde according to dispersion of the present invention in addition.So-called condensation sulphonic acid ester is meant the sulphonic acid ester that obtains by condensation reaction, is suitably the polymerization sulphonic acid ester.Aptly, dispersion comprises the condensation product of aromatic sulfonic acid and formaldehyde.Condensation product generally is a polyelectrolyte and soluble in water easily.Can use various aromatic sulfonic acids, as contain the aromatic sulfonic acid of an aromatic ring (having 6 carbon atoms usually) and contain two or more aromatic sulfonic acid and fused aromatic sulfonic acid with aromatic ring of 6 carbon atoms.Aromatic compounds is fit to be selected from naphthalene, with the naphthalene of cresols reaction, diphenyl ether, toluene, cumene, cresols, phenol.Usually, condensation product is by making aromatic compounds and sulfuric acid reaction, thereby forms sulfonic acid, after this adds aldehyde, forms thereby obtain condensation product.Once in a while, sodium sulfite can exist in course of reaction.According to the preferred embodiments of the invention, aqueous dispersion comprises the condensation product of naphthalene sulfonic acids and formaldehyde, is referred to as the condensation polymer of condensation napsylate usually.
The amount that is present in the condensation sulphonic acid ester in the dispersion can variation in the tolerance, and this especially depends on the type of paper stock and is present in other compound such as stabilizing agent, dispersant and sizing agent in the aqueous dispersion.Usually, dispersion contains about 1 to about 20wt% condensation sulphonic acid ester, and suitable about 1 arrives about 15wt%, preferably approximately 2 arrives about 10wt%, based on sizing agent.
According to dispersion of the present invention can be anion or cationic dispersion, this depend on starch and/or other additive of in dispersion, containing as the amount of dispersion/stabilizing agent and protection compound.So-called anion or cationic dispersion are interpreted as that dispersant is anion or cation dispersing agent, promptly has total anion or cationic charge.Dispersant (system) is meant any compound such as electropolymer (polyelectrolyte) and the surfactant in the dispersion of being present in that helps that dispersion/emulsion forms.The additive that is fit to can be any dispersion/stabilizing agent known in the art and protective agent such as non-ionic polymers; By natural origin, be polysaccharide such as starch, guar gum, cellulose, chitin, chitosan, glycan, galactan, glucan, xanthans, mannosan, the CATION that dextrin etc. are derived, anion and amphiphilic polymers, and synthetic organic polymer such as condensation product, anion polyurethane and for example based on the polymerization anionic compound of naphthalene, condensation napsylate for example, and by monomer with anionic group, acrylic acid for example, methacrylic acid, maleic acid, itaconic acid, crotonic acid, vinyl sulfonic acid, the phosphate of sulfonated phenylethylene and acrylic acid and hydroxyalkyl methacrylate form (optional with comprise acrylamide, alkyl acrylate, the non-ionic monomer of styrene and acrylonitrile and the derivative of these monomers, copolymerization such as vinyl esters) other vinyl addition polymer.
Compatibly, this dispersion comprises having about 0.1 about 50wt%, the cellulose reactive sizing agent of the sizing agent content more than 20wt% that suits.The dispersion that contains the ketenes dimer sizing agent according to the present invention can have at 5 to 50wt% and the preferably approximately 10 ketenes dimer contents that arrive in about 35wt% scope.Dispersion or the emulsion that contains the acid anhydrides sizing agent according to the present invention can have at about 0.1 to about 30wt% and usually about 1 anhydride content that arrives in about 20wt% scope.The dispersion of non-cellulose reactive sizing agent generally can have 5 to 50wt% and preferred 10 to 35wt% sizing agent content.
So-called term " dispersion " be meant dispersion and emulsion the two, depend on the physical state of sizing agent.
Can be according to dispersion of the present invention by under the existence that is included in water and starch, preferred sizing agent therein is under the temperature of liquid, suiting, the method for homogenizing sizing agent prepares under pressure.Cool off gained aqueous emulsion (drop that contains sizing agent normally has the size of diameter 0.1-3.5 μ m) then.The suitable temperature of ketenes dimer sizing agent is about 55 ℃ to 95 ℃, and acid anhydrides can be used lower temperature.
Dispersion of the present invention can be in due form as sizing agent in the papermaking of the cellulose fibre that uses any kind, and it can be used for top sizing and inside or paper stock applying glue simultaneously.Term used herein " paper " is meant and not only comprises paper, and comprises and opening and all types of cellulose type products of reel form, for example comprises plate and cardboard.Paper stock contains cellulose fibre, optional also have inorganic filler and usually the content of cellulose fibre be 50wt% at least, based on dry paper stock.The example of the inorganic filler of general type comprises kaolin, china clay, titanium dioxide, gypsum, talcum and natural and synthetic calcium carbonate such as chalk, marble powder and winnofil.
The applying glue dosage that is added in the paper stock can be 0.01-5wt%, suitable 0.05-1.0wt%, based on the dry weight of the optional filler of cellulose fiber peacekeeping, wherein this dosage depends primarily on the paper pulp of the applying glue of wanting or the quality of paper stock, used sizing agent and required applying glue level.
In addition, dispersion of the present invention is preferably used in by the paper stock papermaking that contains the optional filler of cellulose fiber peacekeeping with high conductivity.Usually the electrical conductivity of paper stock is at least about 0.20mS/cm, suitable 0.5mS/cm at least, preferably 3.5mS/cm at least.More than the 5.0mS/cm and even level of conductivity more than the 7.5mS/cm under found very good applying glue.Electrical conductivity can be passed through standard device, as being measured by the WTW LF539 instrument of Christian Bemer supply.Above-mentioned value is fit to by measuring feeding or be present in the electrical conductivity of the cellulose suspension in the hopper of paper machine, or measures by measuring by the electrical conductivity of the plain boiled water that the suspension dehydration is obtained in addition.The high conductivity level is meant the salt (electrolyte) of high-load, and wherein various salt can be with list, two and polyvalent cation such as alkali metal, for example Na
+And K
+, alkaline-earth metal, for example Ca
2+And Mg
2+, aluminium ion, for example Al
3+, Al (OH)
2+With poly-aluminium ion, and single, two and multivalent anions such as halogen root, for example Cl
-, sulfate radical, for example SO
4 2-And HSO
4 -, carbonate, for example CO
3 2-And HCO
3 -, silicate and rudimentary organic acid are the basis.Dispersion especially can be used for the paper stock papermaking by the salt of two and polyvalent cation with high-load, and usually cations is 200ppm at least, is fit at least 300ppm and preferred 400ppm at least.Salt can be obtained by the cellulose fiber peacekeeping filler that is used to form paper stock, and the concentrated aqueous fibrous suspension from pulp mill normally mixes with water especially therein, forms to be suitable in the integrated plant of the dilute suspension of papermaking in the paper mill.This salt can also derive from the various additives that are incorporated in the paper stock, supplies with the fresh water of this technology, or deliberately add etc.In addition, be higher in the technology of the common a large amount of recirculation of plain boiled water therein of the content of salt, a large amount of accumulation of the salt in this water that can cause in this technology, circulating.
In following examples, further illustrate the present invention, yet they are not used for limiting the present invention.Part and % are respectively weight portion and wt%, unless otherwise prescribed.
Embodiment 1
Preparation contains 8.9% industrial alkyl ketene dimer, the anion size dispersions of 0.89% cationic starch with 0.065 DS and the aromatics replacement that contains benzyl and 0.22% the condensation napsylate that obtains under trade name Tamol .Anionic dispersions joins with amount (dry basis) based on dimeric 0.0125% (test 1) of ketenes and 0.0140% (testing 2) as shown in table 1 and contains 30% pine, 30%Bee, 40% eucalyptus and 15% deposit C aCO
3Cellulose suspension (dry basis) in.The electrical conductivity of suspension is 500 μ S/cm.Also add the applying glue promoter of starch that contains the benzyl replacement with 0.065DS (the dried paper stock of 5kg/ ton) and the condensation napsylate (the dried paper stock of 0.120kg/ metric ton) that under trade name Tamol , obtains to this suspension.
Table 1
| Tested number | Anion size dispersions/[the kg sizing agent/dried paper stock of ton] | ?Cobb?60/[g/m 2] |
| Test 1 | 0.125 | ?27.0 |
| Test 2 | 0.140 | ?25.5 |
Embodiment 2
In the present embodiment, use the anion size dispersions identical with embodiment 1.In addition, also use the starch that contains benzyl replacement with 0.065DS (5kg/ ton dried paper stock) identical and the applying glue promoter of the condensation napsylate (the dried paper stock of 0.120kg/ metric ton) that under trade name Tamol , obtains with embodiment 1.The anion size dispersions is joined in the identical cellulose suspension, yet the conductance of this suspension is 5000 μ S/cm, but not 500 μ S/cm.
Table 2
| Tested number | Anion size dispersions/[the kg sizing agent/dried paper stock of ton] | ?Cobb?60/[g/m 2] |
| Test 1 | 0.125 | ?33 |
| Test 2 | 0.140 | ?25 |
Embodiment 3
Sizability according to the CATION applying glue of prior art uses cobb 60 test evaluations.Size dispersions does not prepare by will be not mixing with the fusion AKD of the AKD content with 15wt% (based on a total points prose style free from parallelism) with the cationic starch of aromatic group and sulfonated oil.This papermaking paper stock contains 30: 30: 40 pine trees of 85%: birch: eucalyptus sulfate pulp and 15% precipitated calcium, add CaCl again
2The paper stock denseness is 2.5g/l, has 8.1 pH and the conductance of 500 μ s.This dispersion is united use with comprising the aromatic modified starch of CATION that has 0.065 DSc and contain phenyl and the water conservation and the dewatering system of condensation napsylate (they join in the paper stock separately).Respectively, the aromatic modified starch of CATION adds with the amount of 5kg/ ton and the condensation napsylate adds with the amount of 0.5kg/ ton, based on dried paper stock.
Table 3
| Size dispersions/[the dried paper stock of kg AKD/ ton] that adds | ?Cobb?60/[g/m 2] |
| 0.122 | ?42 |
Embodiment 4
In the present embodiment, condition, i.e. size dispersions, dehydration and water conservation system etc. are identical with embodiment 3, however the conductance of paper stock is by interpolation CaCl
2And become 5000 μ s.
Table 4
| Size dispersions/[the dried paper stock of kg AKD/ ton] that adds | ?Cobb |
| ?0.122 | ?95 |
Claims (12)
1. applying glue aqueous dispersion, comprise sizing agent, have the starch and the condensation sulphonic acid ester of aromatic group, wherein the condensation sulphonic acid ester is the aromatic sulfonic acid of being derived by the aromatic compounds in the product that is selected from naphthalene, naphthalene and cresols, diphenyl ether, toluene, cumene, cresols and the phenol and the condensation product of aldehyde, and starch contains the following amylopectin of 95wt%.
2. according to the applying glue aqueous dispersion of claim 1, wherein said starch has following general formula:
Wherein P is the residue of starch; A is the atomic link that comprises C and H atom that N is connected in polysaccharide residue radical, R
1And R
2Each is H or alkyl naturally, R
3Be aromatic hydrocarbyl, n is 2 to 300,000 integer, and X
-It is anionic counter-ion.
3. according to the applying glue aqueous dispersion of claim 1 or 2, wherein starch contains the following amylopectin of 90wt%.
4. according to the applying glue aqueous dispersion of claim 1 or 2, wherein the condensation sulphonic acid ester is the condensation product of aromatic sulfonic acid and formaldehyde.
5. according to the applying glue aqueous dispersion of claim 1 or 2, wherein the condensation sulphonic acid ester is the condensation product of naphthalene sulfonic acids and formaldehyde.
6. according to the applying glue aqueous dispersion of claim 1 or 2, wherein sizing agent is the cellulose reactive sizing agent.
7. the glue applying method of paper, comprise and to contain sizing agent, contain the starch with aromatic group of the following amylopectin of 95wt% and the applying glue aqueous dispersion of condensation sulphonic acid ester joins in the water slurry that contains cellulose fibre, on papermaking wire-cloth, form and dewatered suspension, wherein suspension has the conductance of 0.5mS/cm at least, and described condensation sulphonic acid ester is the aromatic sulfonic acid of being derived by the aromatic compounds in the product that is selected from naphthalene, naphthalene and cresols, diphenyl ether, toluene, cumene, cresols and the phenol and the condensation product of aldehyde.
8. according to the glue applying method of the paper of claim 7, wherein said starch has following general formula (I):
Wherein P is the residue of starch; A is the atomic link that comprises C and H atom that N is connected in polysaccharide residue radical, R
1And R
2Each is H or alkyl naturally, R
3Be aromatic hydrocarbyl, n is 2 to 300,000 integer, and X
-Be anionic counter-ion, this starch contains the following amylopectin of 95wt%.
9. according to the glue applying method of the paper of claim 7 or 8, wherein suspension has the conductance of 3.5mS/cm at least.
10. according to the glue applying method of the paper of claim 7 or 8, wherein starch contains the following amylopectin of 90wt%.
11. according to the glue applying method of the paper of claim 7 or 8, wherein the condensation sulphonic acid ester is the condensation product of naphthalene sulfonic acids and formaldehyde.
12. according to the glue applying method of the paper of claim 7 or 8, wherein sizing agent is the cellulose reactive sizing agent.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
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| EP00850137 | 2000-08-07 | ||
| EP00850135.5 | 2000-08-07 | ||
| EP00850136.3 | 2000-08-07 | ||
| EP00850137.1 | 2000-08-07 | ||
| EP00850135 | 2000-08-07 | ||
| EP00850136 | 2000-08-07 | ||
| EP00850195 | 2000-11-16 | ||
| EP00850195.9 | 2000-11-16 |
Publications (2)
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| CN1446282A CN1446282A (en) | 2003-10-01 |
| CN1237228C true CN1237228C (en) | 2006-01-18 |
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| CNB018146910A Expired - Fee Related CN1302176C (en) | 2000-08-07 | 2001-08-02 | Process for the production of paper |
| CNB018146902A Expired - Fee Related CN1215221C (en) | 2000-08-07 | 2001-08-02 | Process for sizing paper |
| CN01814583A Pending CN1449464A (en) | 2000-08-07 | 2001-08-02 | Process for sizing paper |
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| CNB018146910A Expired - Fee Related CN1302176C (en) | 2000-08-07 | 2001-08-02 | Process for the production of paper |
| CNB018146902A Expired - Fee Related CN1215221C (en) | 2000-08-07 | 2001-08-02 | Process for sizing paper |
| CN01814583A Pending CN1449464A (en) | 2000-08-07 | 2001-08-02 | Process for sizing paper |
Country Status (17)
| Country | Link |
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| EP (4) | EP1309756B1 (en) |
| JP (4) | JP2004506104A (en) |
| KR (4) | KR20030042445A (en) |
| CN (4) | CN1237228C (en) |
| AR (4) | AR030314A1 (en) |
| AT (2) | ATE553259T1 (en) |
| AU (6) | AU2001280359B2 (en) |
| BR (4) | BR0112904A (en) |
| CA (4) | CA2418424C (en) |
| CZ (1) | CZ304877B6 (en) |
| ES (3) | ES2384994T3 (en) |
| MX (5) | MX255774B (en) |
| NO (1) | NO332614B1 (en) |
| NZ (1) | NZ523956A (en) |
| PT (3) | PT1309756E (en) |
| TR (1) | TR200300157T2 (en) |
| WO (4) | WO2002012626A1 (en) |
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