EP1918456A1 - Procédé de fabrication d'une feuille fibreuse contenant des charges - Google Patents

Procédé de fabrication d'une feuille fibreuse contenant des charges Download PDF

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Publication number
EP1918456A1
EP1918456A1 EP06396018A EP06396018A EP1918456A1 EP 1918456 A1 EP1918456 A1 EP 1918456A1 EP 06396018 A EP06396018 A EP 06396018A EP 06396018 A EP06396018 A EP 06396018A EP 1918456 A1 EP1918456 A1 EP 1918456A1
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EP
European Patent Office
Prior art keywords
filler
polymer
polyelectrolyte complex
fillers
cationic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06396018A
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German (de)
English (en)
Inventor
Cherryleen Garcia-Lindgren
Sune WÄNNSTRÖM
Lars Wagberg
Linda Gärdlund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metsa Board Oyj
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M Real Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by M Real Oyj filed Critical M Real Oyj
Priority to EP06396018A priority Critical patent/EP1918456A1/fr
Priority to RU2007139693/12A priority patent/RU2007139693A/ru
Publication of EP1918456A1 publication Critical patent/EP1918456A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper

Definitions

  • the present invention relates to a method according to the preamble of claim 1 of producing a fibrous web on a paper or cardboard machine.
  • the web is produced from an aqueous furnish containing fibres mainly derived from lignocellulosic material, fillers and conventional additives.
  • Paper mills are in constant pursuit of lowering production costs.
  • One common scheme to reach this goal is to increase the filler content and thereby reduce the use of fibres.
  • Limiting factors for increasing filler level are runnability on the paper machine and paper performance.
  • Use of high filler loading (specifically for PCC) gives increased consumption of internal sizing agents (e.g. ASA, AKD) and increased risk for size reversion.
  • internal sizing agents e.g. ASA, AKD
  • the invention is based on the concept of replacing at least a part of the filler traditionally used in sized papers and cardboard products with a filler containing a nanometer-sized polyelectrolyte complex adsorbed attached to the filler.
  • the present invention is based on the fact that the surface area of fillers is orders of magnitude greater than the surface area of fibres in the furnish, and that the surface of a mineral filler, e.g. the precipitated calcium carbonate (PCC) filler, is porous and is easily accessible by to adsorption of the nanometer-sized PEC.
  • a mineral filler e.g. the precipitated calcium carbonate (PCC) filler
  • the invention provides for admixing the fillers with a polyelectrolyte complex before contacting the fillers with the fibres and any additives.
  • the complex can be employed in the form of a solution or a colloidal dispersion, which is admixed with the filler to provide a modified filler, and the modified filler is then admixed with a fibrous stock (furnish) together with the other components, including the sizing agents and retention agents and, optionally, conventional filler.
  • the new paper and cardboard products according to the invention comprise an uncoated product or optionally base paper for coating constituted by a fibrous web containing, in combination, 0.01 to 20 % by weight of a sizing agent, 1 to 50 % by weight of a filler, and 0.01 to 20 % by weight of a polyelectrolyte, at least 20 percent of which is adsorbed to the filler. The percentages are calculated from the total weight of the product.
  • the paper can contain other components, including conventional fillers, retention agents and traditional auxiliary agents.
  • the paper and cardboard products can be produced by the steps of providing a fibre furnish, adding to the fibre furnish comprising 100 parts by weight of cellulosic or lignocellulosic fibres, in optional order, 1 to 50 parts by weight of a filler which is modified by 0.01 to 20 % by weight of a polyelectrolyte complex, and 0.01 to 20 % by weight of a sizing agent, the percentage being calculated from the dry weight of the filler, and forming from the stock comprising the fibres, the modified filler and the sizing agent a paper or cardboard web on a paper or cardboard machine.
  • the present method is mainly characterized by what is stated in the characterizing part of claim 1.
  • the method can be used for improving surface strength, e.g for reducing dusting of a filler-containing lignocellulosic web.
  • surface strength e.g for reducing dusting of a filler-containing lignocellulosic web.
  • cationic PEC treated filler significant savings of retention aids are possible. By imparting a net cationic charge on the filler, retention is drastically improved such that retention aids can be significantly reduced or eliminated. Also a positive effect on bulk has been observed.
  • cost savings can be obtained by reduced beating of fibres.
  • the present polyelectrolyte complexes Compared to the natural and semisynthetic polymers mentioned above, with the present polyelectrolyte complexes there is the advantage that they will form a 3-dimensional structure capable of binding fibres and filler together.
  • the complexes have a high water content, i.e. are highly swollen, and therefore the 3-D structure is created without excessive use of chemicals. This is important for a comparison with for example polymeric latexes used in paper coating formulations.
  • Another important aspect is the competitive cost of the PEC, since the components of complex are bulk chemicals commonly used in papermaking.
  • the paper and cardboard products obtained by the present invention have been extensively tested and, e.g., formation has been studied. It appears that the same formation can be obtained with a polyelectrolyte complex treatment of the present kind as compared to the reference.
  • This invention solves two important problems with using higher filler levels in paper production.
  • the treatment increases paper strength and thereby compensating for the use of less fibre in the paper.
  • the treatment decreases internal sizing demand brought about by the increased filler level..
  • sizing stability and efficiency are improved with the invention.
  • the potential for savings in paper production is therefore significant.
  • the proportion of fibre can be decreased from 80 % to 72 %, saving 8 % fibre with the same (or even better) paper strength. Just this proportion difference corresponds to approximately 20 - 25 €/ton paper.
  • an average of 1.25 kg AKD (5 €/kg) or roughly 6 E/t may be saved.
  • the present invention provides for filler treatment with a polymer and a polyelectrolyte complex that enables better sizing efficiency and stability during the production of highly-filled papers. It has been observed that this filler modification decreases the sizing demand significantly. Thus, papers comprising the modified filler in a concentration of more than 50 % of the total amount of fillers will need about 20 % less of the conventional sizing agent than a conventional paper containing unmodified filler at the same Cobb60 -value.
  • the modification process can be carried out separately, only for the filler.
  • the present invention provides for modification of a filler, which is then - after the modification - added to the stock and admixed with fibres and sizing agents.
  • the present treatment can be combined with a similar treatment also of the fibres, as discussed on our co-pending patent application.
  • the polyelectrolyte complex is added separately to both the fillers and the fibres before they are mixed together.
  • CMC as such can be used for filler treatment which also leads to improved sizing efficiency, sizing stability and decreased sizing demand.
  • the present invention provides even better results. Without being bound to any particularly theory, it would seem that the action of the present treatment with, e.g., polyamideamine epichlorhydrine (PAE) and with a complex formed by PAE and caboxymethylcellulose (CMC) is quite different from treating a filler with CMC alone.
  • PAE polyamideamine epichlorhydrine
  • CMC caboxymethylcellulose
  • the initial addition of PAE imparts positive charges to the surface of the particle.
  • This layer anchors the polyelectrolyte complex to the PCC particle.
  • the complex forms a 3-dimensional structure that binds PCC particles and fibres together, resulting in the strength increase observed in the trial described below.
  • the surface of the filler is modified resulting in better AKD sizing.
  • the current invention is basically therefore a simple 2-component (anionic polymer + cationic polymer) complex that has a net charge on the filler particle. It does not require a third component for curing, although such components are not excluded.
  • the dosage of the complex is low (typically about 0.001 to 1 % by weight of the filler, in particular about 0.01 to 0.1 % by weight, e.g. about 0.08 % by weight), therefore no significant agglomeration of filler takes place.
  • the interaction between the complex and the filler is rather the opposite of the above mentioned Sunden solution, agglomeration takes place as shown by the particle size distribution at the mm-range. But the association between the particles in the present invention is weak, hence after ultrasound treatment, the particle size distribution comes close to that of the untreated filler, In this case, formation and filler distribution in the paper are not affected.
  • a filler typically a mineral filler
  • the modification step comprises typically admixing, continuously or intermittently, the filler with a polyelectrolyte complex before feeding it into the headbox where it is mixed with the fibres and any additives in aqueous suspension.
  • the mixing and contacting time can amount to about 1 second to about 24 hours, typically some 10 seconds to 5 hours is sufficient and times in the range of about 1 minute to about 1 hour are preferred.
  • the pH is in the range of 4 to 9, preferably 5 to 8,5 the temperature 10 to 65 °C and the pulp consistency 0.1 to 5 %, preferably 2 to 4 %.
  • the polyelectrolyte complex (in the following also abbreviated "PEC") is preformed and added as such (cf. below).
  • the filler can be any conventional filler which, in the present context, means a particulate filler which is pulverous and comprises loose particles.
  • conventional fillers the following can be mentioned: calcium carbonate (natural or in particular precipitated), kaolin, talc, hydrogenated aluminum oxides (aluminum trihydroxides), calcium sulfate, barium sulfate, calcium oxalate, silicates or titanium dioxide. Precipitated calcium carbonate is preferred.
  • the filler can be treated with a polymer having a net charge.
  • the treatment can be carried out with a cationic or anionic polymer. In either case, a portion of one of the components of the complex can be used for improving attachment.
  • the pre-treatment step is preferably carried out separately from the admixing with the PEC.
  • the same polymer that is used as a cationic component of the complex is also employed for the pre-treatment, although it is possible to pre-treat the filler with a first cationic component and to use a second for forming the complex.
  • the total amount of cationic polymer employed during the treatment about 10 to 95 % by weight of the polymer, preferably 20 to 90 % by weight and in particular about 20-60 % by weight is separately attached to the filler material in a pre-treatment step.
  • the polyelectrolyte complex is a complex that has a negative net charge.
  • the negative charge can be at least -0.1 meq/g, preferably about -0.4 to -4 meq/g.
  • the polyelectrolyte complex has a positive net charge.
  • the polyelectrolyte complex can have a positive net charge of at least 0.1 meq/g, preferably about 0.4 to 4.0 meq/g.
  • the affinity of the polyelectrolyte complexes for filler is increased, in particular when the polyelectrolyte complex has a negative net charge.
  • a cationic polymer By treating the filler with a cationic polymer, the attachment of negatively charged polyelectrolyte complexes to the filler surface is facilitated.
  • cationic polyelectrolyte complexes pre-treatment is generally not needed. It would appear that the cationic polymer, such as polyamideamine epichlorhydrine (PAE) or other polyamine derived polymers which have a tertiary or quaternary amine functionality, enable increased attachment of PEC to the filler.
  • PAE polyamideamine epichlorhydrine
  • the contacting times can be of equal length in both stages and as explained above.
  • the aim is to attach a substantial proportion of the polyelectrolyte complex so that at least 10 % by weight, preferably at least 20 % by weight, in particular at least 30 % by weight and most suitably at least 40 % by weight, of the complex is sorbed from the solution attached to the fillers.
  • the fillers then contain typically approx. 0.1 - 30 %, of the polyelectrolyte complex.
  • the polyelectrolyte complex used in the present invention is a complex formed by a cationic polymer and an anionic polymer.
  • the polyelectrolyte complex typically is charged, and in particular it has a negative net charge, but it can also have a positive net charge.
  • the cationic polymer can be selected from the group of:
  • cationic polymer is formed by polyamide derivatives with tertiary and quaternary amine functionality.
  • Another type of cationic polymer is formed by carbohydrate polymers, such as cationized starch.
  • the anionic polymer is, for example, derived from a carbohydrate polymer having a negative net charge. Examples of such polymers are anionic cellulose derivatives, hemicellulose derivatives, starches and mixtures thereof.
  • Synthetic anionic polymers may include polyacrylic acid, polymethacrylic acid, polyvinylamine, and polymers containing carboxyl groups, primary and secondary amine functionalities as well as mixtures of two or more of the aforementioned polymers.
  • the polyelectrolyte complex comprises polyamide amine epichlorhydrine (PAE) or cationized starch and carboxymethyl cellulose (CMC) or a similar cellulose derivative.
  • PAE polyamide amine epichlorhydrine
  • CMC carboxymethyl cellulose
  • the PEC can be made by adding a polyamide amine epichlohydrine resin (PAE) to carboxymethyl cellulose (CMC) having a degree of substitution between 0.4 and 1.3 and preferably forming that PEC in water.
  • PAE polyamide amine epichlohydrine resin
  • CMC carboxymethyl cellulose
  • molar ratios of PAE to CMC of about 1:1 to 1:5 can be used. But preferably, a proportion based on charge density is used.
  • the charge ratio (meq/g of cationic polymer/meq/g of anionic polymer as absolute value) most often used is in the range of 0.3 to 1.5.
  • the components of the PEC it is preferred to contact the components of the PEC at turbulent conditions, e.g., under intensive agitation by dynamic or static mixers.
  • the turbulence can be generated by utilizing the velocity differences of two feeds flowing at different flow rates.
  • the contacting can be carried out in a continuous operation or batch-wise or semibatchwise, although continuous or semibatch operation is preferred.
  • the molecular weight of polymer components of the complexes may vary within large ranges.
  • the degree of polymerization (DP) of the polymer e.g. the PAE, is approx. 100 - 20,000, in particular approx. 200 - 5,000.
  • the aqueous suspension containing the modified filler can be used as such in paper or cardboard making. If separation of the filler is desired, it is usually not dried before papermaking.
  • the filler is mixed with cellulosic or lignocellulosic fibers, sizing agents, retention chemicals, and other additives.
  • Retention chemicals to be mentioned include polymeric products such as polyethylene imine, low molar mass polyacrylamide and polyamine, as well as cationic starch, guar or polyacrylamine combined with colloidal silica, alumina or montmorillonite.
  • the amount of retention chemicals is in general at least 0.5 % of the dry matter of the fiber, typically approx. 0.6 - 1 % of the dry matter of the fiber.
  • the furnish may also contain other conventional additives, such as internal sizing agents and retention agents, including AKD or ASA resins, rosins and ionic and polymeric retention agents.
  • additives in the paper furnish serve to ensure that the fibers have the required properties to attract and bond.
  • the amount of such additives does not exceed 5 % by the dry weight of the paper/board, typically the amount are is in the range of about 0.1 to 4 % by weight.
  • the paper pulp is slushed in a manner known per se to a suitable consistency (typically a solids content of approx. 0.1-1 %).
  • the above-mentioned filler is added to the fiber slush, before the headbox of the paper or board machine, usually in an amount of approx. 1 - 40 % by weight of the weight of the fibers in the fiber pulp.
  • the filler constitutes at least 5 % by weight, most suitably 10 - 100 % by weight, of the total filler in the base web, and respectively 10 - 50 % by weight of the fiber material in the base web.
  • the filler modified according to the present invention can be used as such for filling papers or it can be used in combination with conventional, untreated fillers, for example mineral fillers.
  • the weight ratio between modified fillers and conventional fillers (if any), is typically about 1:100 to 100:1, preferably about 30:70 to 99:1, in particular about 50:50 to 90:10.
  • a portion (at maximum 95 %, usually 90-10 % by weight, of the total amount) of the filler used in the slush can consist of conventional fillers, such as calcium carbonate (natural or precipitated), kaolin, talc, hydrogenated aluminum oxides (aluminum trihydroxides), calcium sulfate, barium sulfate, calcium oxalate, silicates or titanium dioxide and mixtures thereof.
  • conventional fillers such as calcium carbonate (natural or precipitated), kaolin, talc, hydrogenated aluminum oxides (aluminum trihydroxides), calcium sulfate, barium sulfate, calcium oxalate, silicates or titanium dioxide and mixtures thereof.
  • the fiber pulp is formed into a paper or board web.
  • the fiber web is dried and most suitably optionally coated, and optionally or after-treated by for example calendering.
  • the web can be coated with a pigment, for example, calcium carbonate, gypsum, aluminum silicate, kaolin, aluminum hydroxide, magnesium silicate, talc, titanium dioxide, barium sulfate, zinc oxide, synthetic pigment, or mixtures thereof.
  • a pigment for example, calcium carbonate, gypsum, aluminum silicate, kaolin, aluminum hydroxide, magnesium silicate, talc, titanium dioxide, barium sulfate, zinc oxide, synthetic pigment, or mixtures thereof.
  • cellulose-containing material is meant here generally paper or board or a corresponding cellulose-containing material derived from a lignocellulose-containing raw material, in particular wood or annual or perennial plants.
  • the said material may be wood-containing or woodfree, and it may be prepared from mechanical, semimechanical (chemimechanical) or chemical pulp.
  • the chemical pulp and the mechanical pulp may be bleached or unbleached.
  • the material may also contain recycled fibers, in particular from recycled paper or recycled board.
  • the grammage of the material web varies typically within the range 35 - 500 g/m 2 , in particular it is approx. 50 - 450 g/m 2 .
  • the grammage of the base paper is 20 -300 g/m 2 , preferably 30 - 80 g/m 2 .
  • the invention is particularly suitable for producing highly-filled uncoated papers. Such papers are exemplified by offset printing papers and office papers (copying papers).
  • the filler treatment was performed by first adding the polymer, in this case, polyamideamine epichlorhydrine to a 15 % PCC slurry. The final concentration of the slurry contained 2 % of the polymer based on the dry weight content of PCC. The mixture was allowed to stand with constant stirring for 15 minutes.
  • a polyelectrolyte complex solution was prepared containing equal weight polyamideamine epichlorhydrine and carboxymethylcellulose (anionic treatment). The complex solution (2 % by weight) was then added to the slurry with constant stirring and allowed to react for 30 minutes.
  • Figure 1 shows the effect of filler treatment on sizing demand and sizing stability.
  • the figure shows a plot of the AKD dosage against Cobb 60.
  • the solid lines for the untreated PCC for both 1 and 4 weeks are shown. It took 2 kg/t AKD for the untreated PCC to reach a reasonable Cobb value (approx. 20). Cobb values taken after 4 weeks show a slight increase, indicating a loss of sizing effect over a period of time.
  • the dashed lines represent the treated PCC with polymer+polyelectrolyte complex for both 1 and 4 weeks time.
  • a reasonable Cobb value was attained with 1,25 kg/t AKD. This is a savings of 0,75 kg/t AKD to reach the same degree of sizing with the treatment.
  • a cationic complex was added to a PCC slurry resulting in a final concentration of 0.2 % based on the dry weight of the filler.
  • the paper produced on the XPM had a grammage of 80 g/m 2 with 28 % filler.
  • a reference series with untreated PCC was performed with increasing AKD dosages (0 to 2 kg/t) and similar series with anionic and cationic polyelectrolyte complexes, respectively, were performed. Additionally, a trial point was performed using cationic polyelectrolyte complex-treated filler without any retention chemical system.
  • Figure 2 shows the geometric tensile index for all three sample series. Both anionic and cationic polyeletrolyte complex filler treatment showed increased tensile index as compared to the reference, with anionic treatment giving the highest increase. A similar trend was observed for tensile stiffness index.
  • Figure 3. the cationic polyelectrolyte complex treatment exhibited a slight increase in bulk. The anionic complex did not affect this property.
  • Figure 4. This illustrates that a 28 % filler level is possible without retention chemicals.
  • PEC treatment on the filler has been shown to have positive effects on sizing efficiency, sizing stability and strength, with relatively low dosages. But results also show that the treatment has good effects on surface strength.
  • Surface strength refers to the resistance of the surface layer of a sheet to the break-away of surface fragments when the sheet is separated from the inked blanket during printing. Loosely bonded fibers, filler particles and starch may be pulled away from the paper surface by moist conditions during printing. A considerable build-up of such material on printing blankets must be cleaned off resulting to unnecessary maintenance stops. This leads to a requirement from the customers for a paper with improved surface strength.
  • the fiber furnish used was 80 % unbeaten birch kraft pulp and 20 % beaten (27 SR) softwood kraft pulp. Except for the reference, the filler (PCC) was otherwise treated first with 0.3 % PAE (based on the dry weight of the filler) under vigorous stirring and allowed to react for 15 minutes. 0.18 % anionic PEC (PAE/CMC) (based on the dry weight of the filler) was thereafter added under similar conditions.
  • the targeted filler level is 28 % and grammage of 80 g/m 2 . Varying dosages of ASA (0 to 0.25 %), 0.2 % stock starch and retention aids were used.

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  • Inorganic Chemistry (AREA)
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EP06396018A 2006-10-31 2006-10-31 Procédé de fabrication d'une feuille fibreuse contenant des charges Withdrawn EP1918456A1 (fr)

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EP06396018A EP1918456A1 (fr) 2006-10-31 2006-10-31 Procédé de fabrication d'une feuille fibreuse contenant des charges
RU2007139693/12A RU2007139693A (ru) 2006-10-31 2007-10-29 Способ изготовления рулонного волокнистого материала, содержащего наполнители

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EP06396018A EP1918456A1 (fr) 2006-10-31 2006-10-31 Procédé de fabrication d'une feuille fibreuse contenant des charges

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074491A1 (fr) * 2007-12-12 2009-06-18 Omya Development Ag Fibres organiques a surface mineralisee
DE102009019666A1 (de) * 2009-04-30 2010-11-04 Voith Patent Gmbh Faserstoffaufbereitung
WO2014105647A1 (fr) * 2012-12-24 2014-07-03 Nanopaper, Llc Papier bouffant et à résistance élevée amélioré
JP2017500454A (ja) * 2013-12-25 2017-01-05 エコラブ ユーエスエイ インク ポリマー乳化剤によって乳化されたａｓａエマルションのサイズ効率を改善する方法
CN109251549A (zh) * 2018-08-31 2019-01-22 安徽省新兴纸业有限责任公司 一种耐撕裂纸盘的制备方法
SE1951246A1 (en) * 2019-10-31 2021-05-01 Organoclick Ab Flourocarbon free and biobased oil and and water barrier materials
CN113461998A (zh) * 2021-06-07 2021-10-01 安徽久吾天虹环保科技有限公司 一种填料的改性方法及其组分以及应用
US11319673B2 (en) 2016-08-24 2022-05-03 Organoclick Ab Bio-based PEC compositions as binders for fiber based materials, textiles, woven and nonwoven materials
US11525211B2 (en) 2016-08-24 2022-12-13 Organoclick Ab Bio-based polyelectrolyte complex compositions comprising non-water soluble particles
US11685820B2 (en) 2016-08-24 2023-06-27 Organoclick Ab Bio-based polyelectrolyte complex compositions with increased hydrophobicity comprising fatty compounds

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4710270A (en) * 1980-09-19 1987-12-01 Olof Sunden Paper making process utilizing fillers with hardened envelopes of cationic starch
GB2200104A (en) * 1987-01-23 1988-07-27 Ecc Int Ltd Aqueous suspensions of calcium-containing fillers
WO1997037081A1 (fr) * 1996-04-03 1997-10-09 The Procter & Gamble Company Technique permettant d'incorporer une matiere de charge en fines particules a du papier de soie au moyen d'un polyelectrolyte anionique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710270A (en) * 1980-09-19 1987-12-01 Olof Sunden Paper making process utilizing fillers with hardened envelopes of cationic starch
GB2200104A (en) * 1987-01-23 1988-07-27 Ecc Int Ltd Aqueous suspensions of calcium-containing fillers
WO1997037081A1 (fr) * 1996-04-03 1997-10-09 The Procter & Gamble Company Technique permettant d'incorporer une matiere de charge en fines particules a du papier de soie au moyen d'un polyelectrolyte anionique

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9725599B2 (en) 2007-12-12 2017-08-08 Omya International Ag Surface-mineralized organic fibers
DE102007059736A1 (de) * 2007-12-12 2009-06-18 Omya Development Ag Oberflächenmineralisierte organische Fasern
WO2009074491A1 (fr) * 2007-12-12 2009-06-18 Omya Development Ag Fibres organiques a surface mineralisee
DE102009019666A1 (de) * 2009-04-30 2010-11-04 Voith Patent Gmbh Faserstoffaufbereitung
WO2014105647A1 (fr) * 2012-12-24 2014-07-03 Nanopaper, Llc Papier bouffant et à résistance élevée amélioré
EP3087223A4 (fr) * 2013-12-25 2017-08-02 Ecolab USA Inc. Procédé pour améliorer l'efficacité de collage d'une émulsion asa émulsifiée par un émulsifiant polymère
JP2017500454A (ja) * 2013-12-25 2017-01-05 エコラブ ユーエスエイ インク ポリマー乳化剤によって乳化されたａｓａエマルションのサイズ効率を改善する方法
US11319673B2 (en) 2016-08-24 2022-05-03 Organoclick Ab Bio-based PEC compositions as binders for fiber based materials, textiles, woven and nonwoven materials
US11525211B2 (en) 2016-08-24 2022-12-13 Organoclick Ab Bio-based polyelectrolyte complex compositions comprising non-water soluble particles
US11685820B2 (en) 2016-08-24 2023-06-27 Organoclick Ab Bio-based polyelectrolyte complex compositions with increased hydrophobicity comprising fatty compounds
CN109251549A (zh) * 2018-08-31 2019-01-22 安徽省新兴纸业有限责任公司 一种耐撕裂纸盘的制备方法
SE1951246A1 (en) * 2019-10-31 2021-05-01 Organoclick Ab Flourocarbon free and biobased oil and and water barrier materials
WO2021086247A1 (fr) * 2019-10-31 2021-05-06 Organoclick Ab Matériaux formant barrière à l'huile et à l'eau à base biologique et sans fluorocarbone comprenant des complexes polyélectrolytiques
SE544664C2 (en) * 2019-10-31 2022-10-11 Organoclick Ab Flourocarbon free and biobased oil and water barrier materials
CN113461998A (zh) * 2021-06-07 2021-10-01 安徽久吾天虹环保科技有限公司 一种填料的改性方法及其组分以及应用

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