EP1921207B1 - Auftragsverfahren von Nanopartikeln für Papierherstellung - Google Patents
Auftragsverfahren von Nanopartikeln für Papierherstellung Download PDFInfo
- Publication number
- EP1921207B1 EP1921207B1 EP20060025073 EP06025073A EP1921207B1 EP 1921207 B1 EP1921207 B1 EP 1921207B1 EP 20060025073 EP20060025073 EP 20060025073 EP 06025073 A EP06025073 A EP 06025073A EP 1921207 B1 EP1921207 B1 EP 1921207B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nano
- particles
- paper
- organic
- styrene
- 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.)
- Not-in-force
Links
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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
- D21H21/52—Additives of definite length or shape
-
- 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
- D21H17/35—Polyalkenes, e.g. polystyrene
-
- 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
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
Definitions
- the invention deals with a method for inline application of nano-hybrid particles during a papermaking process.
- EP-A 1 422 248 discloses an aqueous dispersion containing nano-particles which is used as a paper sizing composition to improve the surface characteristics of the paper or the like.
- Object of the invention is therefore a method of making a paper with improved surface properties, characterized in that that nano-hybrid particles consisting of organic nano particles and inorganic particles, the organic nano-particles being adhered to the surface of the inorganic particles wherein the nanohybrid particles contain 1-99% organic nano particles of polystyrene or a styrene copolymer having a size of 2 - 100 nm and 99-1% inorganic particles having a size of 50 nm - 20 ⁇ m are applied in the wet end of the paper making process by addition to the fiber suspension or applied onto the wet or dried paper fiber web.
- the nano-hybrid particles consist of an organic and an inorganic part.
- the organic part is nano sized having a particle size of about 2-100 nm.
- the organic part preferably is of spherical shape.
- the organic nano-particles are adhered to the surface of the inorganic particles, thus when applied in an aqueous solution on the surface of a porous substrate the nano-particles cannot disappear in the pores but are kept close to the surface.
- Organic part of the nano-hybrid particles may be a polymer or a copolymer preferably polystyrene or styrene copolymers. Especially preferred are styrene maleimid copolymers or other styrene containing copolymers e.g. with butadiene, acrylic acid and the like.
- the styrene part may also have functional groups such as sulfonic acid groups, carboxylic groups or pyridine groups.
- the nano-hybrid particles may be prepared for example by dissolving the polymer or a copolymer of maleic anhydride with a vinyl monomer in water, adding a RNH 2 compound, R being H, alkyl with 1 - 18 carbon atoms or aryl and heating the resultant mixture in the presence of larger particles to make the imides. The polymeric particles will settle down on the larger particles.
- Inorganic part can be CaCO 3 (ground or precipitated), TiO 2 , clay, aluminium oxide, aluminium hydroxide, talkum, zincoxide, zeolithe and the like.
- the hybrid particles contain 1-99 wt% organic and 99-1 wt% inorganic material. Preferably the hybrid particles contain 3-45% of organic material and 97-55 wt% of inorganic material.
- the nano-hybrid particles are preferably applied dry or preferably in an aqueous suspension with a solid content of 1-99%, preferably 10 - 80wt%, more preferably 35 - 70 wt% .
- the composition preferably contains 1- 20% of organic material and 99 - 80 wt% of inorganic material, for application on the dry or wet fiber web, the composition preferably contains 3 - 45 wt% of organic material and 97 - 55 wt% of inorganic material.
- the nano-hybrid particles can be applied in the wet end by addition to the fiber suspension or applied onto the wet or dried fiber web.
- the fiber content of the paper fiber suspension will be 0,6 to 1,5 wt%.
- the nano-hybrid particles suspension may be applied pure or mixed with different types of binders, eg. starch and starch derivates, PVOH, branched polymers, styrene acrylate latex, styrene butadiene latex, casein and/or several additives for brightness, shading and adjustment of the dielectrical properties, as NaCl, KCI, CaCl 2 , and the like.
- binders eg. starch and starch derivates, PVOH, branched polymers, styrene acrylate latex, styrene butadiene latex, casein and/or several additives for brightness, shading and adjustment of the dielectrical properties, as NaCl, KCI, CaCl 2 , and the like.
- Starch and starch derivatives may be added in an amount up to 10 wt%, preferably 1 - 2 wt%, PVOH may be added up to 10 wt%, preferably 0- 5 wt%, branched polymers up to 20 wt%, preferably 2-10 wt%, styrene acrylate latex, and styrene butadiene latex up to 20 wt%, preferably 5- 12 wt%.
- Additives for brightness may be present in an amount of 0 - 5 wt%, preferably 1- 2 wt%, shading additives may be present in an amount of 0 - 2 wt% preferably 0 - 1 wt%, additives for the adjustment of dielectric properties may be added 0 - 7 wt %, preferably 0 - 2 wt %.
- the nano particles may be applied inline or offline on the fiberweb.
- Inline application of the dry nano-hybrid particles or the suspension of the nano-hybrid particles may be carried out by conventional surface coating methods e.g. size press, film press, blade, roller bar, curtain coating, spray coating and the like.
- Offline application may be carried out by conventional surface coating methods e.g. size press, film press, blade, roller bar, curtain coating, spray coating and the like or by conventional printing techniques such as intaglio or gravure printing or flexographic printing or the like.
- conventional surface coating methods e.g. size press, film press, blade, roller bar, curtain coating, spray coating and the like or by conventional printing techniques such as intaglio or gravure printing or flexographic printing or the like.
- the paper produced shows improved surface appearance, as well as improved printing quality, especially in laser and digital printing processes.
- Product will be an uncoated, pigmented or coated office and communication paper. Depending on process parameters the resulting paper may be glossy ot have a matt glaze.
Landscapes
- Paper (AREA)
Claims (9)
- Verfahren zur Herstellung von Papier mit verbesserten Oberflächeneigenschaften, dadurch gekennzeichnet, dass Nano-Hybridpartikel, die aus organischen Nanopartikel und anorganischen Partikeln bestehen, wobei die organischen Nanopartikel haftend auf die Oberfläche der anorganischen Partikel aufgebracht werden, wobei die Nano-Hybridpartikel 1 bis 99 % organische Nanopartikeln aus Polystyrol oder einem Styrolcopolymer mit einer Größe von 2 bis 100 nm und 99 bis 1% anorganische Partikel mit einer Größe von 50 nm bis 20 µm enthalten, in der Nasspartie des Papierherstellungsvorgangs zur Anwendung kommen, indem sie der Fasersuspension zugesetzt werden, oder auf das nasse oder getrocknete Papierfaservlies aufgebracht werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Nano-Hybridpartikel 3 bis 45 % an organischem Material und 97 bis 55 % an anorganischem Material zum Aufbringen auf das nasse oder getrocknete Faservlies einbringen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Nano-Hybridpartikel 1 bis 20 % an organischem Material und 99 bis 80 % an anorganischem Material für das Aufbringen in der Nasspartie des Papierherstellungsvorgangs enthalten.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es sich bei den anorganischen Partikeln um CaCO3 (gemahlen oder gefällt), TiO2, Ton, Aluminiumoxid, Aluminiumhydroxid, Talkum, Zinkoxid oder Zeolith handelt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die organischen Partikel aus einem Copolymer von Styrol mit Maleinsäureimid oder Butadien oder Acrylsäure gebildet sind.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die aufgebrachte Lösung Bindemittel enthält, z.B. Stärke und Stärkederivate, PVOH, verzweigte Polymere, Styrol-Acrylat-Latex, Styrol-Butadien-Latex, Kasein und/oder mehrere Hilfsstoffe zur Aufhellung, zur Tönung und zur Einstellung dielektrischer Eigenschaften, wie etwa NaCl, KC1, CaCl2 und Ähnliches.
- Verfahren nach den Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Nano-Hybridpartikel prozessintegriert mittels herkömmlicher Oberflächenbeschichtungsverfahren aufgebracht werden, z.B. mittels einer Leimpresse, einer Filmpresse, einer Rakel, eines Drehstabs, durch Vorhangstreichen oder durch Sprühstreichen.
- Verfahren nach den Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Nano-Hybridpartikel separat mittels herkömmlicher Oberflächenbeschichtungsverfahren aufgebracht werden, z.B. mittels einer Leimpresse, einer Filmpresse, einer Rakel, eines Drehstabs, durch Vorhangstreichen, durch Sprühstreichen oder mittels herkömmlicher Drucktechniken wie etwa im Stichtiefdruck- oder Rotationstiefdruckverfahren oder im Flexodruckverfahren.
- Verwendung des Papiers, das nach einem der Ansprüche 1 bis 9 hergestellt wurde, als unbeschichtetes, pigmentiertes oder beschichtetes Papier.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060025073 EP1921207B1 (de) | 2006-11-10 | 2006-11-10 | Auftragsverfahren von Nanopartikeln für Papierherstellung |
PCT/EP2007/009621 WO2008055661A1 (en) | 2006-11-10 | 2007-11-07 | Method for application of nano particles during a papermaking process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060025073 EP1921207B1 (de) | 2006-11-10 | 2006-11-10 | Auftragsverfahren von Nanopartikeln für Papierherstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1921207A1 EP1921207A1 (de) | 2008-05-14 |
EP1921207B1 true EP1921207B1 (de) | 2013-01-02 |
Family
ID=38016987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20060025073 Not-in-force EP1921207B1 (de) | 2006-11-10 | 2006-11-10 | Auftragsverfahren von Nanopartikeln für Papierherstellung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1921207B1 (de) |
WO (1) | WO2008055661A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010022410A2 (en) * | 2008-08-18 | 2010-02-25 | Air Revolution Technologies (Proprietary) Limited | Air purifying means |
CN105421142A (zh) * | 2015-11-03 | 2016-03-23 | 广东志造生物科技有限公司 | 一种含生物基淀粉胶黏剂的涂布纸组合物及涂布方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567099A (en) * | 1984-12-21 | 1986-01-28 | The Dow Chemical Company | High solids latexes for paper coatings |
DE3924846A1 (de) * | 1989-07-27 | 1991-02-14 | Basf Ag | Waessrige papierstreichmassen mit sehr hohen feststoffgehalten |
US20010036990A1 (en) * | 2000-03-30 | 2001-11-01 | Bobsein Barrett Richard | Waterborne paper or paperboard coating composition |
US6579816B2 (en) * | 2001-01-26 | 2003-06-17 | The Procter & Gamble Company | Multi-purpose absorbent and shred-resistant sheet material |
AU2002343275A1 (en) * | 2001-10-09 | 2003-04-22 | Fletcher Building Holdings Limited | Plasterboard liner |
US20060257593A1 (en) * | 2002-10-01 | 2006-11-16 | J P Haenen | Coated printing sheet and process for making same |
EP1422248A1 (de) | 2002-10-04 | 2004-05-26 | Raisio Chemicals Ltd. | Plastikpigmente aus wässrigen Dispersionen von Styrol-Maleinimide-Partikeln |
US6942897B2 (en) * | 2003-02-19 | 2005-09-13 | The Board Of Trustees Of Western Michigan University | Nanoparticle barrier-coated substrate and method for making the same |
-
2006
- 2006-11-10 EP EP20060025073 patent/EP1921207B1/de not_active Not-in-force
-
2007
- 2007-11-07 WO PCT/EP2007/009621 patent/WO2008055661A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2008055661A1 (en) | 2008-05-15 |
EP1921207A1 (de) | 2008-05-14 |
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