EP1518962A2 - Dispositif de préparation de sauces de couchage - Google Patents

Dispositif de préparation de sauces de couchage Download PDF

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Publication number
EP1518962A2
EP1518962A2 EP04104339A EP04104339A EP1518962A2 EP 1518962 A2 EP1518962 A2 EP 1518962A2 EP 04104339 A EP04104339 A EP 04104339A EP 04104339 A EP04104339 A EP 04104339A EP 1518962 A2 EP1518962 A2 EP 1518962A2
Authority
EP
European Patent Office
Prior art keywords
coating color
mixing
coating
degassing
color
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.)
Ceased
Application number
EP04104339A
Other languages
German (de)
English (en)
Other versions
EP1518962A3 (fr
Inventor
Christoph Henninger
Martin Dr. Tietz
Volker Fäthke
Stefan Reich
Uwe Fröhlich
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Voith Paper Patent 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 Voith Patent GmbH, Voith Paper Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1518962A2 publication Critical patent/EP1518962A2/fr
Publication of EP1518962A3 publication Critical patent/EP1518962A3/fr
Ceased legal-status Critical Current

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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
    • D21H23/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/80—After-treatment of the mixture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/80—After-treatment of the mixture
    • B01F23/803—Venting, degassing or ventilating of gases, fumes or toxic vapours from the mixture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel

Definitions

  • the invention relates to a device for coating color preparation one composed of several components Coating paint according to claim 1, consisting of a first Mixing stage, a degassing device and at least one second mixing stage. Furthermore, the invention relates to a Method for the production of coating color according to claim 7, wherein the coating color pigments in aqueous dispersion, binder and at least one thickener and other additives contains and a process for the preparation of coated Paper or board according to claim 12.
  • Coating paints contain water-dispersed, mostly inorganic Pigments.
  • the paint is added to the binder to the Apply pigments reliably and permanently to the paper.
  • As a further component contain the coating colors Thickener and various additives as additives to the for the respective coating process required chemical and physical properties.
  • coating colors and their processing are out the document WO 02/066739 A1. Also is from the Document a method for the preparation of coated To take paper or cardboard in which a coating color with a so-called curtain coater in a free falling Curtain applied to a running paper or board web becomes. Before the job, the finished coating color over several Mixing stages mixed from their components. Since the Apply the coating color without air or other gases is allowed, it is in an intermediate process step degassed.
  • the invention is based on the object, the color preparation through a suitable coordination of individual process sequences to flexibilize and thereby the overall process sequence regarding their economy and quality.
  • a device for coating color preparation one composed of several components Coating color provided, at least consisting of a first Mixing stage and a degassing device, being the first Mixing at least one continuous mixing unit for Mixing the coating components before the degassing is arranged.
  • the invention proposes, by continuous mixing units bring the gas mixture lower proportions of gas than in conventional methods. It depends on the viscosity of the paint and the design of the mixer achieved a complete homogenization of the coating color, being characterized by a small supply of color in the Mixed system the coating color losses are kept low and a quick color change is possible.
  • the color passes through the treatment device and passes without stocking directly into the machine container of the coating device.
  • a measuring and control unit provides the necessary Coordination of the individual processes with each other to the color flow and ensures an economically advantageous, high system integration and production performance.
  • the device according to the invention for color preparation requires only a small storage of coating color or their Components.
  • At least one other continuous mixing unit after the degassing to admix another Color components is arranged.
  • This will be the disconnected Mixing of different components and their dosing order adapted to the respective chemicals, preferred those components are dosed simultaneously, the do not react with each other.
  • the degassing device is a vacuum ventilator, who always in a certain amount in the coating color existing air removed.
  • a mixing turbine arranged to the mixing of improve several components composite color.
  • a cooling device hereby is heated by the mixing process in a mixing turbine Color cooled, for efficient ventilation or further processing to ensure or to cook in the vacuum fan to avoid.
  • At least one filter preferably at the output end, integrated into the device. This will at least Immediately before applying the paint in it Contaminants, such as particles and deposits the coating color, removed.
  • the device is for Coating treatment followed by a curtain coater, optionally with a pulsation damper.
  • the pulsation damper reduces the pressure surges in the mixing system and ensures one even color flow in the coater.
  • According to another aspect of the invention is a method for the production of coating color with a first mixing stage, a degassing device, at least a second mixing stage indicated, wherein the coating color pigments in aqueous Dispersion, binder and at least one thickener and containing further additives, using at least a continuous mixing unit as the first mixing stage an aqueous pigment dispersion with binder and more Additives is prepared, and then the dispersion is subjected to degassing.
  • the Degassing made under vacuum.
  • An advantageous embodiment of the invention provides that using at least one continuous mixing unit as second mixing stage thickener and further additives be added under exclusion of air of the pigment dispersion.
  • surfactants are used as further additives.
  • the invention provides that for the production of coated paper or cardboard using the paint the device according to the invention for coating color preparation by means of a curtain coater in a free falling Curtain applied to a running paper or board web becomes.
  • Fig. 1 shows schematically a device according to the invention for coating color preparation 1.
  • a first mixing stage 2 are via feed lines pigments 22, water 23 and binder 24 and as further components thickener 42 and more Additives 43 added.
  • a continuous Mixing unit 21 the components are mixed.
  • an additional Mixed turbine with a cooler 25 to increase the color Homogenize and increasing by the mixing process Reduce temperature.
  • the cooled dispersion is fed by means of a pump 8 to a degassing device 3, in which it is sprayed at reduced pressure.
  • a degassing device 3 in which it is sprayed at reduced pressure.
  • the gases emerging from the color mixture in particular air, are removed from the container.
  • the finished mixed color is conveyed on with a pump 8 and fed via a filter 5 and a pulsation damper 6 to a curtain coater 9, via which the coating color is applied to paper or board.
  • FIG. 2 shows a schematic representation of a device for coating color preparation with a coater with each a mixing stage before and after the degassing device 3.
  • first mixing stage 2 is using a continuous Mixing unit 21 an aqueous pigment dispersion made with binder and other additives. Thereon Following is the dispersion of degassing in device 3 subjected.
  • second mixing stage 4 is then Thickener and other additives added and turn over Filter 5 and a pulsation damper 6 a curtain coater. 9 fed.
  • a two-stage mixing process first the components are mixed, due to a low Allow the mixture to vent well. Substances which the viscosity increase or tend to foam, only in another Process stage attached.
  • Fig. 3 shows a schematic representation of a device for coating color preparation analogous to FIG. 1 with a Coater, in which a mixing turbine 25 with a subsequent Intermediate tank 7 integrated before the degassing device 3 is.
  • the intermediate container arranged immediately after the continuous mixing unit 21 and after the degassing device 3, a second Follow Mix 4.
  • Fig. 5 shows a schematic representation of a device for coating color preparation with a coater with each a continuous mixer 21 and 41 with additional Mixing turbine 25 and 44 both before and after the degassing 3. This will be a particularly homogeneous Mixing the color causes.
  • a curtain coater 9 is supplied.
  • measuring and control units ensure a regular process sequence.
  • On demand can also use other continuous mixing equipment separate admixture of other components and in particular the continuous admixture in the second mixing stage in the device are involved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Paints Or Removers (AREA)
EP04104339A 2003-09-16 2004-09-09 Dispositif de préparation de sauces de couchage Ceased EP1518962A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343022 2003-09-16
DE10343022A DE10343022A1 (de) 2003-09-16 2003-09-16 Kontinuierliche Streichfarbenaufbereitung

Publications (2)

Publication Number Publication Date
EP1518962A2 true EP1518962A2 (fr) 2005-03-30
EP1518962A3 EP1518962A3 (fr) 2009-08-05

Family

ID=34177798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104339A Ceased EP1518962A3 (fr) 2003-09-16 2004-09-09 Dispositif de préparation de sauces de couchage

Country Status (2)

Country Link
EP (1) EP1518962A3 (fr)
DE (2) DE20321832U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012010511A1 (fr) * 2010-07-20 2012-01-26 Voith Patent Gmbh Coucheuse rideau
WO2012041662A1 (fr) * 2010-09-30 2012-04-05 Voith Patent Gmbh Procédé de mise en œuvre d'un dispositif pour une application directe ou indirecte d'un milieu d'enduction liquide ou pâteux et dispositif
EP2811068A1 (fr) * 2013-06-06 2014-12-10 Valmet Technologies, Inc. Procédé et dispositif de dégazage d'une substance de traitement d'une bande de fibres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017952B4 (de) * 2005-04-18 2013-03-07 Voith Patent Gmbh Verfahren zum Entgasen von Streichfarbe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731213A2 (fr) * 1995-03-09 1996-09-11 DRAISWERKE GmbH Procédé et installation de traitement de couleur d'enduction sur une bande de papier
DE19602581A1 (de) * 1996-01-25 1997-07-31 Draiswerke Gmbh Verfahren und Mischer zum Herstellen von Papier-Streichffarbe
WO2002066739A1 (fr) * 2001-02-16 2002-08-29 Voith Paper Patent Gmbh Peinture de couchage et procede de fabrication de papier ou de carton couche
US20030131652A1 (en) * 2002-01-16 2003-07-17 Qingyuan Chen Determination of gas solubility, entrained gas content, and true liquid density in manufacturing processes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731213A2 (fr) * 1995-03-09 1996-09-11 DRAISWERKE GmbH Procédé et installation de traitement de couleur d'enduction sur une bande de papier
DE19602581A1 (de) * 1996-01-25 1997-07-31 Draiswerke Gmbh Verfahren und Mischer zum Herstellen von Papier-Streichffarbe
WO2002066739A1 (fr) * 2001-02-16 2002-08-29 Voith Paper Patent Gmbh Peinture de couchage et procede de fabrication de papier ou de carton couche
US20030131652A1 (en) * 2002-01-16 2003-07-17 Qingyuan Chen Determination of gas solubility, entrained gas content, and true liquid density in manufacturing processes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012010511A1 (fr) * 2010-07-20 2012-01-26 Voith Patent Gmbh Coucheuse rideau
WO2012041662A1 (fr) * 2010-09-30 2012-04-05 Voith Patent Gmbh Procédé de mise en œuvre d'un dispositif pour une application directe ou indirecte d'un milieu d'enduction liquide ou pâteux et dispositif
EP2811068A1 (fr) * 2013-06-06 2014-12-10 Valmet Technologies, Inc. Procédé et dispositif de dégazage d'une substance de traitement d'une bande de fibres

Also Published As

Publication number Publication date
EP1518962A3 (fr) 2009-08-05
DE10343022A1 (de) 2005-04-07
DE20321832U1 (de) 2010-12-30

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