EP2369054B1 - Vorhangstabilisatoren für die Papierherstellung und -verarbeitung - Google Patents

Vorhangstabilisatoren für die Papierherstellung und -verarbeitung Download PDF

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Publication number
EP2369054B1
EP2369054B1 EP11154931A EP11154931A EP2369054B1 EP 2369054 B1 EP2369054 B1 EP 2369054B1 EP 11154931 A EP11154931 A EP 11154931A EP 11154931 A EP11154931 A EP 11154931A EP 2369054 B1 EP2369054 B1 EP 2369054B1
Authority
EP
European Patent Office
Prior art keywords
curtain
mass
coating
stabilization system
paper
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
EP11154931A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2369054A1 (de
Inventor
Hans-Leo Karminski
Pedro Cavaleiro
Annekathrin Hansen
Angela Classen
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.)
Evonik Operations GmbH
Original Assignee
Evonik Goldschmidt GmbH
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 Evonik Goldschmidt GmbH filed Critical Evonik Goldschmidt GmbH
Publication of EP2369054A1 publication Critical patent/EP2369054A1/de
Application granted granted Critical
Publication of EP2369054B1 publication Critical patent/EP2369054B1/de
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
    • 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
    • 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
    • D21H19/38—Coatings with pigments characterised by the 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
    • 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
    • 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
    • D21H21/22—Agents rendering paper porous, absorbent or bulky
    • D21H21/24—Surfactants
    • 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
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters

Definitions

  • the invention relates to curtain stabilizer systems that can be used in papermaking and processing, in particular stabilizer systems for paper coatings, in particular paper coatings, their preparation and use.
  • curtain stabilizers For this purpose, it has long been known to use special surfactants as so-called curtain stabilizers.
  • curtain stabilizer systems comprising 2,4,7,9-tetramethyldec-5-yne-4,7-diol is frequently described.
  • JP 2008-274465 For example, a paper coating is known which is curtain coated and which has 2,4,7,9-tetramethyldec-5-yne-4,7-diol (Surfynol) as a surfactant.
  • JP 2005-154912 describes the production of coated paper by means of a Curtain coating method using an acetylene glycol surfactant (Surfynol).
  • Stabilized coating curtains are to be understood as those which have a uniform width and no cracks, holes or indentations during the casting over the entire length.
  • the present invention therefore relates to curtain stabilization systems, their use in coating compositions or coating processes and products obtainable with these coating processes as described in the claims.
  • the use of the curtain stabilization system according to the invention has the advantage that even without the addition of defoamers the formation of a sufficiently stable curtain can be achieved by means of the addition of the curtain stabilization system according to the invention.
  • curtain stabilization system in curtain coating compositions and the resulting stable coating curtains can be very low or high processing speeds or low or high application rates, especially high processing speeds and low application rates set and still produce flawless coated papers.
  • the processing speeds z. B. from about 700 to 1,000 m / min.
  • this high substrate speed can be when using a relatively small order quantity of z. B. from 13 to 20 g / m 2 of anhydrous curtain coating agent can be obtained error-free coatings.
  • curtain stabilization systems according to the invention or the curtain stabilizers according to the invention, the coating compositions according to the invention, the coating substrate according to the invention and the coated substrate or paper obtained therewith and their use are described below by way of example, without the invention being restricted to these exemplary embodiments.
  • ranges, general formulas, or classes of compounds are intended to encompass not only the corresponding regions or groups of compounds explicitly mentioned, but also all sub-regions and sub-groups of compounds obtained by removing individual values (ranges) or compounds can be.
  • Cited documents, their content, in particular with regard to the facts referred to, should form part of the disclosure content of the present invention. If mean values are mentioned below, number means are meant without any indication to the contrary. If values are given below in percent, the percentages are in% by mass, unless stated otherwise.
  • the curtain stabilization system according to the invention are particularly suitable for the production of coating compositions, such as. Example, by doctoring or brushing or curtain to be applied as coating, in particular curtain coating, ie coating, which are used in coating processes by the curtain method (curtain coating).
  • Coating compositions according to the invention comprise a solvent, preferably water, at least one binder and a curtain stabilization system according to the invention.
  • the coating composition may contain all known compounds suitable as binders.
  • suitable binders can, for. For example, see the document Overview of the range "Paper adds value to life", BASF adds value to paper, BASF SE, 2008/02 be removed.
  • the coating composition according to the invention preferably comprises styrene acrylates or butadiene copolymers as binders, as described, for example, in US Pat. B. under the trade name Litex P 7100 from PolymerLatex are available.
  • the coating composition according to the invention in particular curtain coating composition, preferably has a proportion of the added curtain stabilization system, based on the total composition of the coating composition, of from 0.01 to 6% by mass, preferably from 0.05 to 3% by mass and more preferably from 0.5 to 1.5 Mass% on.
  • the coating composition according to the invention in particular curtain coating agent, can comprise pigments / fillers.
  • pigments / fillers may be all known or suitable for coating compositions pigments / fillers, in particular those as they are used for the coating of paper.
  • the curtain coating composition according to the invention comprises one or more pigments / fillers, in particular selected from TiO 2 , CaCO 3 and aluminum silicates.
  • the (curtain) coating composition according to the invention contains an antifoam component.
  • all substances which act as defoamers and which do not or only negligibly influence the effect of the curtain stabilization system can be used as a defoamer component. Examples of suitable defoamer components are found, for. B. in the writings US 5,804,099 . US 6,353,068 . US 6,858,663 . EP 2094761 or DE 102008043032 ,
  • the coating composition according to the invention contains an antifoam component, the fraction thereof is from 0.01 to 5, based on the total composition of the coating composition Mass%, preferably from 0.05 to 1.8% by mass, preferably from 0.5 to 1.0% by mass.
  • the (curtain) coating composition according to the invention preferably has a viscosity at 25 ° C. of 150 to 1200 mPas.
  • the viscosity can, for. B. be determined with a Brookfield viscometer.
  • the curtain coating composition according to the invention can be used, in particular, for coating paper, paper being also understood to mean cardboard.
  • films of plastics or metal such as those used for the production of specialty papers, can be coated.
  • all substrates are suitable, which can be coated by CurtainCoating technology, such. As wood, metal, plastic.
  • the inventive method for coating substrate in particular paper, wood, metal or plastic, preferably paper by means of curtain coating, is characterized in that the coating agent for curtain stabilization, a curtain stabilization system according to the invention is added.
  • the curtain stabilization system is preferably added in such an amount that the proportion of the curtain stabilization system based on the total composition of the coating agent is from 0.01 to 6% by mass, preferably from 0.05 to 3% by mass, more preferably from 0.5 to 1 , 5 is.
  • a defoamer component is added to the coating composition in addition to a curtain stabilization system, it is advantageous if the coating composition is only provided with a curtain stabilization system according to the invention after the addition of the antifoam component Stabilization of the curtain is added.
  • the antifoam component is preferably added in such an amount that the proportion of the antifoam component relative to the total composition of the coating agent is from 0.01 to 5 mass%, preferably from 0.05 to 0.8 mass%, preferably from 0.2 to 0.8 mass%.
  • a defoaming component is added to the coating agent in addition to a curtain stabilization system
  • the curtain stabilization system is added to the coating agent only after a defoaming process step.
  • the process step of the defoaming z. B. are performed so that first the defoaming component is added to the coating agent and evenly distributed and after this venting the stabilization system is added so that no (new) air is entered.
  • the addition of the stabilization system is carried out by slow addition with simultaneous slow stirring. Instead of using a stirrer, it may be advantageous if the addition and in particular the subsequent mixing takes place using static mixers.
  • the curtain coating can otherwise, as in the prior art, for.
  • the amount of curtain coating agent applied to the substrate, in particular paper is preferably from 0.1 to 800 g / m 2 , preferably from 5 to 400 g / m 2 and particularly preferably from 8 to 100 g / m 2 .
  • substrate or paper speeds of 100 to 1000 m / min, preferably from 200 to 950 m / min and more preferably from 300 to 800 m / min. be used.
  • curtain stabilization system By using the curtain stabilization system according to the invention, it is possible to carry out the coating process so that even at low application rates of 0.3 to 50 g / m 2 , in particular 5 to 15 g / m 2 and paper speeds of 100 to 1000 m / min, preferably from 200 to 950 from 300 to 800 m / min. stable coating curtains can be made.
  • Preferred processing speeds are from about 700 to 1,000 m / min. Preferably, this processing speed is achieved with the use of a water-based formulation which, after drying, provides an application rate of 13 to 20 g / m 2 of coating.
  • the curtain coating method can in particular also be carried out so that several layers are applied simultaneously.
  • One, several or all, preferably all coating curtains may comprise the curtain stabilization system according to the invention.
  • a substrate coated according to the invention which in particular can be paper, metal foil or plastic foil, preferably paper, is obtainable.
  • the coated substrate preferably paper, metal (foil) or plastic (foil), preferably paper, depending on the coating agent used z. B. be coated with a paint or adhesive or laminating adhesive.
  • the coated substrate according to the invention preferably paper
  • Example 1 Preparation of Inventive Curtain Stabilization Systems
  • the curtain behavior was determined on a laboratory system with a 17 cm wide casting head.
  • the ready-to-use coating color was conveyed by means of a pump to the casting head and passed there via a slot nozzle to a flow sheet, from which the (coating) curtain falls downwards.
  • the stability of the curtain was determined by measuring the curtain from the edge of the drain sheet to the appearance of defects in centimeters. Defects can be: for example, tearing of the curtain, speed cameras in the curtain, separation from the edge guide and contraction of the curtain.
  • the curtain stabilization systems shown in Tables 1a to 1c and the comparative systems W1 to W3 in the amounts indicated in Table 2 were initially used in an amount of 9 kg of a coating color consisting of 100 parts by weight of Pigment HC 90 ME from Omya , 15 parts by weight Litex ® from polymer latex and 0.75 parts by weight Mowiol ® PVA Kuraray was prepared by mixing the components of the self-7110 26-88, is added.
  • the components of the formulation ME 90, Litex ® 7110 and Mowiol ® PVA 26-88 are water-based polymer dispersions or water-based pigment slurries.
  • the recipe contains large amounts of water that comes from the raw materials used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP11154931A 2010-03-23 2011-02-18 Vorhangstabilisatoren für die Papierherstellung und -verarbeitung Not-in-force EP2369054B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010003134A DE102010003134A1 (de) 2010-03-23 2010-03-23 Vorhangstabilisatoren für die Papierherstellung und -verarbeitung

Publications (2)

Publication Number Publication Date
EP2369054A1 EP2369054A1 (de) 2011-09-28
EP2369054B1 true EP2369054B1 (de) 2012-12-19

Family

ID=44279139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11154931A Not-in-force EP2369054B1 (de) 2010-03-23 2011-02-18 Vorhangstabilisatoren für die Papierherstellung und -verarbeitung

Country Status (5)

Country Link
EP (1) EP2369054B1 (ja)
JP (1) JP2011195838A (ja)
KR (1) KR20110106815A (ja)
CN (1) CN102199901B (ja)
DE (1) DE102010003134A1 (ja)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3636817B2 (ja) 1995-11-30 2005-04-06 ゴルトシュミット アクチエンゲゼルシャフト ポリシロキサン−ポリオキシエチレン−ポリオキシプロピレン−トリブロックコポリマーおよび該コポリマーを含有する消泡化合物
DE19841559A1 (de) 1998-09-11 2000-03-23 Goldschmidt Ag Th Polyacrylsäureester und ihre Verwendung als Entlüfter für Lacke und Farben
US6489037B1 (en) 1999-08-31 2002-12-03 Weyerhaeuser Company Coating for inhibiting stain formation in floor covering
DE10232115A1 (de) 2002-07-16 2004-02-05 Goldschmidt Ag Organopolysiloxane zur Entschäumung wässriger Systeme
JP2005154912A (ja) 2003-11-21 2005-06-16 Oji Paper Co Ltd 印刷用塗工紙
GB0416900D0 (en) * 2004-07-29 2004-09-01 Arjo Wiggins Fine Papers Ltd Curtain coating process using a high solids content composition
CN100358607C (zh) * 2005-10-09 2008-01-02 南京四新科技应用研究所有限公司 一种水相体系非有机硅消泡剂
JP5225073B2 (ja) * 2006-04-13 2013-07-03 関西ペイント株式会社 水性塗料組成物
DE102006056305A1 (de) 2006-11-29 2008-06-05 Evonik Goldschmidt Gmbh Polyoxyalkylen-Polysiloxan-Blockpolymerisate, ein Verfahren zu deren Herstellung und ihre Verwendung als Entschäumer in wässrigen Dispersionen
JP2008274465A (ja) 2007-04-27 2008-11-13 Oji Paper Co Ltd 剥離紙用基材およびそれを使用した粘着シート
ES2370564T3 (es) * 2007-10-15 2011-12-20 Basf Se Antiespumante para la industria de papel.
DE102008043032A1 (de) 2008-10-22 2010-04-29 Evonik Goldschmidt Gmbh Entschäumer zur Entschäumung von Lacken
CN101530759B (zh) * 2009-03-11 2011-02-09 南京四新科技应用研究所有限公司 一种分散高级脂肪醇混合物的方法

Also Published As

Publication number Publication date
CN102199901A (zh) 2011-09-28
EP2369054A1 (de) 2011-09-28
KR20110106815A (ko) 2011-09-29
JP2011195838A (ja) 2011-10-06
CN102199901B (zh) 2015-05-20
DE102010003134A1 (de) 2011-09-29

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