EP1921207B1 - Procédé d'application des nanoparticules dans une procédé de fabrication de papier - Google Patents

Procédé d'application des nanoparticules dans une procédé de fabrication de papier Download PDF

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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
Application number
EP20060025073
Other languages
German (de)
English (en)
Other versions
EP1921207A1 (fr
Inventor
Gisela Goldhalm
Gerhard Drexler
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.)
Mondi AG
Original Assignee
Mondi AG
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 Mondi AG filed Critical Mondi AG
Priority to EP20060025073 priority Critical patent/EP1921207B1/fr
Priority to PCT/EP2007/009621 priority patent/WO2008055661A1/fr
Publication of EP1921207A1 publication Critical patent/EP1921207A1/fr
Application granted granted Critical
Publication of EP1921207B1 publication Critical patent/EP1921207B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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)

  1. Procédé de préparation d'un papier ayant des propriétés de surface améliorées, caractérisé en ce que des particules nanohybrides se composant de particules nanométriques organiques et de particules inorganiques, les particules nanométriques organiques adhérant à la surface des particules inorganiques, les particules nanohybrides contenant de 1 à 99 % de particules nanométriques organiques de polystyrène ou d'un copolymère de styrène ayant une taille de 2 à 100 nm et de 99 à 1 % de particules inorganiques ayant une taille de 50 nm à 20 µm, sont appliquées dans la partie humide du procédé de préparation de papier par ajout à la suspension de fibres ou appliquées sur le réseau des fibres de papier humide ou sec.
  2. Procédé selon la revendication 1, caractérisé en ce que les particules nanohybrides comprennent de 3 à 45 % de matière organique et de 97 à 55 % de matière inorganique, pour une application sur le réseau de fibres humide ou sec.
  3. Procédé selon la revendication 1, caractérisé en ce que les particules nanohybrides comprennent de 1 à 20 % de matière organique et de 99 à 80 % de matière inorganique, pour une application dans la partie humide du procédé de préparation de papier.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les particules inorganiques sont CaCO3 (broyé ou précipité), TiO2, l'argile, l'oxyde d'aluminium, l'hydroxyde d'aluminium, le talc, l'oxyde de zinc ou une zéolithe.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les particules organiques sont formées à partir d'un copolymère de styrène avec un imide maléique ou un butadiène ou un acide acrylique.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la solution appliquée comprend des liants, par exemple de l'amidon et des dérivés d'amidon, un PVOH, des polymères ramifiés, un latex de styrène-acrylate, un latex de styrène-butadiène, de la caséine et/ou plusieurs additifs pour la brillance, la nuance et l'ajustement des propriétés diélectriques, tels que NaCl, KCl, CaCl2 et analogues.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les particules nanohybrides sont appliquées en continu par des procédés de revêtement de surface conventionnels, par exemple par revêtement par presse colleuse, presse à film, lame, barre de compression rotative, encollage en rideau ou atomisation.
  8. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les particules nanohybrides sont appliquées de manière discontinue par des procédés de revêtement de surface conventionnels, par exemple par revêtement par presse colleuse, presse à film, lame, barre de compression rotative, encollage en rideau, atomisation ou par des techniques d'impression conventionnelles telles que l'impression en relief ou par héliogravure ou l'impression flexographique.
  9. Utilisation du papier produit selon l'une quelconque des revendications 1 à 8, en tant que papier non couché, pigmenté ou couché.
EP20060025073 2006-11-10 2006-11-10 Procédé d'application des nanoparticules dans une procédé de fabrication de papier Not-in-force EP1921207B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20060025073 EP1921207B1 (fr) 2006-11-10 2006-11-10 Procédé d'application des nanoparticules dans une procédé de fabrication de papier
PCT/EP2007/009621 WO2008055661A1 (fr) 2006-11-10 2007-11-07 Procédé d'application de nanoparticules pendant un processus de fabrication de papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060025073 EP1921207B1 (fr) 2006-11-10 2006-11-10 Procédé d'application des nanoparticules dans une procédé de fabrication de papier

Publications (2)

Publication Number Publication Date
EP1921207A1 EP1921207A1 (fr) 2008-05-14
EP1921207B1 true EP1921207B1 (fr) 2013-01-02

Family

ID=38016987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060025073 Not-in-force EP1921207B1 (fr) 2006-11-10 2006-11-10 Procédé d'application des nanoparticules dans une procédé de fabrication de papier

Country Status (2)

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EP (1) EP1921207B1 (fr)
WO (1) WO2008055661A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010022410A2 (fr) * 2008-08-18 2010-02-25 Air Revolution Technologies (Proprietary) Limited Moyen de purification d'air
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)

* Cited by examiner, † Cited by third party
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
AU2003271659B2 (en) * 2002-10-01 2008-07-17 Sappi Netherlands Services B.V. Coated printing sheet and process for making same
EP1422248A1 (fr) 2002-10-04 2004-05-26 Raisio Chemicals Ltd. Pigments plastiques à base de dispersions aqueuses de particules de styrène et de maléimides
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

Also Published As

Publication number Publication date
EP1921207A1 (fr) 2008-05-14
WO2008055661A1 (fr) 2008-05-15

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