EP0513452B1 - Überzogenes Druckpapier und Verfahren zur Herstellung davon - Google Patents

Überzogenes Druckpapier und Verfahren zur Herstellung davon Download PDF

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Publication number
EP0513452B1
EP0513452B1 EP91304439A EP91304439A EP0513452B1 EP 0513452 B1 EP0513452 B1 EP 0513452B1 EP 91304439 A EP91304439 A EP 91304439A EP 91304439 A EP91304439 A EP 91304439A EP 0513452 B1 EP0513452 B1 EP 0513452B1
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EP
European Patent Office
Prior art keywords
coated
layer
paper
latex
coating
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.)
Expired - Lifetime
Application number
EP91304439A
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English (en)
French (fr)
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EP0513452A1 (de
Inventor
Isao C/O Central Research Lab. Kano
Hideki C/O Central Research Lab. Fujiwara
Katsuhiko C/O Central Research Lab. Matsunaga
Kunio C/O Central Research Lab. Hata
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.)
Nippon Paper Industries Co Ltd
Original Assignee
Nippon Paper Industries Co Ltd
Jujo Paper Co Ltd
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Filing date
Publication date
Application filed by Nippon Paper Industries Co Ltd, Jujo Paper Co Ltd filed Critical Nippon Paper Industries Co Ltd
Priority to EP91304439A priority Critical patent/EP0513452B1/de
Publication of EP0513452A1 publication Critical patent/EP0513452A1/de
Application granted granted Critical
Publication of EP0513452B1 publication Critical patent/EP0513452B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • 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
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • 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
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • 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
    • D21H19/46—Non-macromolecular organic compounds
    • D21H19/48—Diolefins, e.g. butadiene; Aromatic vinyl monomers, e.g. styrene; Polymerisable unsaturated acids or derivatives thereof, e.g. acrylic acid
    • 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
    • D21H19/54—Starch
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • D21H25/14—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod the body being a casting drum, a heated roll or a calender

Definitions

  • the present invention relates to a process for producing a coated high-gloss printing material, especially a coated paper, having a superior printability.
  • Coated papers having a coated-layer composed of pigment and binder are used as a high grade printing paper, wherein the gloss of the surface of a coated layer is an important factor besides a printability including ink-absorbency, coated-layer strength, etc.
  • the smoothing by a press on the surface of a coated layer causes the destruction of voids in the coated-layer, thereby lowering the ink-absorbency.
  • the use of a large amount of water-soluble or -dispersible polymer, such as polymeric latex, which is used as the binder for pigment increases a coated-layer strength and gloss, but lowers an ink-absorbency owing to the decreased voids in a coated-layer. Accordingly, the gloss and the printability have adverse tendency in this case.
  • the kinds and amounts of pigment and binder, the amount of coating material, the degree of smoothing treatment and the like are determined under the consideration of an appropriate balance of gloss and printability. Therefore, other techniques are required for the production of a high gloss paper having a superior printability.
  • the gloss value of the coated printing paper is generally increased in the following order: slightly coated paper, coated paper, art paper, superart paper and cast-coated paper.
  • "High gloss” of the present invention means a higher gloss value than that of superart papers.
  • "a high gloss paper” means a coated printing paper having a higher gloss value than that of superart paper.
  • a method using cast-coater is known as a method for the production of high gloss papers, wherein a wet coated-layer composed of pigment and binder is press-contacted with a cast-drum of mirror finishing and dried under heating. This method has a problem including a remarkably slower production speed compared with conventional art papers, coated papers or slightly coated papers.
  • Japanese Patent Laid-Open Application No.56-68188, Japanese Patent Publication Nos 64-10638 and 64-11758 disclose a method for coating a mixture of pigment and polymeric latex or water-soluble polymer, drying a resultant coated-layer and further treating the coated layer with a heated calender.
  • the polymeric latex having a glass transition temperature of at least 5°C or at least 38°C is selected as the used latex, and the temperature of a heated calender is set at a higher temperature than the glass transition temperature of the used latex.
  • this method selects a latex and calender treatment, it is simplified, superior in productivity, but it has as a defect an insufficient gloss, that is, this method does not provide a higher gloss than that of superart papers, and therefore it does not provide the same gloss as that of cast-coated papers.
  • this method comprises coating a combination of at least two polymeric latexes of various minimum film-forming temperatures on an uncoated sheet or on a casted sheet, drying the obtained sheet and optionally smoothing the sheet by a calender.
  • the drying of the combined lateces of various minimum film-forming temperatures causes fine crackings on the surface of the coated paper, thereby resulting in a superior ink-absorbency without impairing the gloss.
  • the important point of the above technique consists in causing fine cracks on the surface of the coated sheet, wherein the special care about the drying conditions must be exercised. That is, the drying conditions must be set so as to completely melt the latex of a lower minimum film-forming temperatuer and, partly melt the latex of a higher minimum film-forming temperature.
  • the drying conditions are easily varied by many factors. Considering industrial application of this technique, it is practically impossible to keep the drying conditions uniform and constant over an entire production system. Therefore, it is very difficult to maintain the constant stable quality.
  • the invention provides a coated printing material which comprises a substrate bearing on one or both sides a pigment layer and a surface layer of a thermoplastic latex polymer having a second-order transition temperature of at least 80°C, the or each surface layer having been treated by a calender at a temperature less than the second-order transition temperature of the thermoplastic latex polymer.
  • the invention also provides a process for producing a coated printing material which comprises forming a pigment layer on one or both sides of a substrate, coating thereon a latex of a thermoplastic polymer having a second-order transition temperature of at least 80°C to prepare a surface-layer on the or each pigment layer, drying the obtained material and then treating the or each surface layer with a calender at a temperature less than the second-order transition temperature of the thermoplastic polymer.
  • FIG. 1 shows an electron-microphotograph of the surface of the coated printing paper described in Example 1.
  • the substrate there are generally used papers, synthetic papers, plastic films and non-woven clothes.
  • papers are widely employed.
  • the papers can be classified into pigment-coated papers, such as art paper, coated paper, slightly coated paper and coated white board, and into non-coated papers, such as wood-free paper, wood-containing paper, newsprint paper, glazed paper and supergravure paper.
  • the substrate should be selected from those materials.
  • the pigment layer on the substrate can be prepared by a conventional process for producing a pigment-coated paper, but the pigment in the coating material, the kind of binder, the ratio of binder to pigment can be varied depending upon the desired quality.
  • One or both sides of the substrate can be coated (at a coating weight of 2 - 40 g/m2 per side).
  • a thermoplastic latex polymer is coated on the pigment layer to prepare a surface layer.
  • the pigment layer can be optionally smoothed, for example by means of a super calender or gloss calender.
  • thermoplastic latex polymer on an uncoated substrate (as base-material) provides good printability, but not high gloss.
  • thermoplastic latex polymer on a synthetic paper or plastic film (as substrate or base-material) provides worse printability (an unsuitable effect) owing to insufficient dryability.
  • thermoplastic latex polymer is applied as an emulsion (hereinafter referred to as "polymer latex") of a thermoplastic polymer or copolymer having a second-order transition temperature of at least 80°C.
  • polymer latex emulsion
  • the shell part should have a second-order transition temperature of at least 80°C.
  • Latex polymers having a second-order transition temperature of at least 80°C are used in the present invention regardless of the monomer species and the production process.
  • preferable monomers include, for example, styrene, derivatives thereof, vinylidene chloride and acrylates or methacrylates.
  • the upper limit of the second-order transition temperature is not otherwise limited, but is substantially determined depending upon the monomer species, and the additives such as plastisizer for producing the polymeric latex. In general, this upper limit is about 130°C.
  • a latex polymer having a second-order transition temperature below 80°C causes adhesion to the calender roll in the calender treatment, and it provides a coated material with insufficient gloss, low surface strength and worse printability.
  • the particle size of the polymer latex used for coating the substrate is smaller than that of a latex used in other fields such as paints when an average particle size is 100 - 500 nm.
  • a polymer latex having an average particle size of less than 100 nm is preferable in the present invention.
  • the polymer latex is coated on a pigment coating layer.
  • Various additives can be provided that the purpose of the present invention is not harmed. These additives are as follows: natural or synthetic coating-binders, fluidity-adjusting agents for the control of coating suitability, antifoamers, lubricants for avoiding adhesion to calender rolls, coloring agents for the coloration of a coating layer surface and a small amount of pigments. The above additives may be mixed appropriately to prepare a coating material for a surface-layer.
  • the resultant coating material for the surface-layer is coated on a pigment-coated layer to produce a surface-layer.
  • the coating amount can be suitably adjusted to obtain a desired quality. With the large amount of the coating, the costs are increased, the ink absorbency is reduced, the ink set is insufficient, and the strength of the surface -layer is lowered. Accordingly, the large amount of the coating is disadvantageous. In ordinary cases, it is suitable to use a coating amount of at least 0.1 g/m2 , preferably 0.3 - 3 g/m2 on one side of a coated substrate.
  • the coating material for the surface-layer is applied by means of a conventional coater used in paper coating, for example, blade coater, roll coater, air-knife coater, bar coater, gravure coater or flexo coater. Drying after the coating requires no specific equipment, and can be carried out by the conventional drying systems used for the production of coated papers.
  • a conventional coater used in paper coating for example, blade coater, roll coater, air-knife coater, bar coater, gravure coater or flexo coater. Drying after the coating requires no specific equipment, and can be carried out by the conventional drying systems used for the production of coated papers.
  • the obtained surface-layer is treated by a calender to prepare a high gloss-layer.
  • the kind of calender is not limited, and super-calender and/or gloss-calender used for smoothing a coated paper are generally employed.
  • the calender-treatment, of which the conditions are important, must be made at below the second-order transition temperature of the latex polymer used for the surface-layer. Any temperature below the second-order transition temperature can be used. However, the temperature is preferably at least 5°C, more preferably 10° - 30°C lower, than the second-order transition temperature.
  • the coated printing material of the present invention has both superior printability and high gloss.
  • Fig. 1 shows an electron-microscopic photograph of the surface-layer of a coated printing paper of the present invention.
  • the surface-layer does not consist of a continuously uniform film formed by melting a latex polymer, but constitutes a structure in which the polymer particles of several ten nanometer in size are separated from each other.
  • the latex polymer owing to its high second-order transition temperature of at least 80 °C, is fixed while maintaining the form and size of the polymer particles without melting and without forming a continuous film, under the conventional drying conditions and the subsequent calender treatment, which is made below the second-order transition temperature. Accordingly, there are many voids between the polymer particles, so that printing inks fill the voids and pass through the capillary tubes among the particles. The ink then reaches the pigment layer, where it is absorbed.
  • a layer in which the form and size of polymer particles is maintained without melting as shown in Fig. 1 would have no film strength.
  • the glazed surface layer of the present invention has practically sufficient strength.
  • the reason for the sufficient strength is now unknown, but it is assumed that the latex polymer having a second-order transition temperature of at least 80 °C has a certain hardness in a calender treatment.
  • a calender treatment after the coating of this latex polymer on the pigment layer causes complicated actions of the properties, such as packing and elasticity, of a pigment layer, the properties of the latex polymer determined by hardness, particle size and coating amount, and the mutual chemical affinities of latex polymer and pigment under a high pressure of the calender treatment. That is, it is assumed that the increase of the surface strength, is due to the above complicated actions, i.e. the so-called mechanochemical effects.
  • a coating color of a 64 % solid content 70 parts of 1st class kaolin, 30 parts of fine ground calcium carbonate, 13 parts (solid content) of a styrene-butadiene latex copolymer and 5 parts (solid content) of a 35 % aqueous starch solution were mixed to produce a coating color of a 64 % solid content.
  • the coating color was coated on a wood-free base paper of a basis weight of 127 g/m2 in a coating amount of 14 g/m2 side (dry basis) by means of a blade coater with a coating speed of 500 m/min. After drying, a base material of a 5.5 % moisture content for upper-coating (a pigment-coated paper) having a pigment layer was obtained.
  • the resultant coated paper was treated under a nip pressure of 180 kg/cm through two nips of a supercalender consisting of chilled rolls and cotton rolls so as to contact the upper-coated surface with the metal roll.
  • a coated paper having a high gloss was obtained.
  • Examples 1 and 2 were made at chilled roll temperatures of 65°C and 82°C, respectively.
  • an upper-coated paper was treated under a nip pressre of 1000 kg/cm through two nips of a gloss calender consisting of chilled rolls and heat-resistant rolls so as to contact the upper-coated surface with the metal roll.
  • Example 3 was made at a chilled roll temperature of 95°C
  • Comparative Example 1 was made at a chilled roll temperature of 120°C, i.e. a higher temperature than the second-order transition temperature of latex copolymer.
  • Example 2 An upper-coated solution and base paper in Example 2 were used, and supercalendering conditions, including a roll temperature of 82°C, were made in the same manner as in Example 2, wherein one to several time coatings were made by means of a blade coater (manufactured by Kumagaya Riki Co,) to produce a paper having a high gloss.
  • Examples 4, 5 and 6 had upper-coated weights of 0.7 g/m2, 2,8 g/m2 and 5.5 g/m2,respectivity.
  • Examples 7 and 8, and Comparative Example 2 were carried out in the same manner as Examples 1 - 3, and Comparative Example 1, except for using a 20 % coating solution containing 80 parts (solid content) of the copolymer (B) having a second-order transition temperature of 85°C, 10 parts (solid content) of polyethylen wax-type lubricant and 10 parts (solid content) of calcium stearate-type lubricant and except for using a coating amount of 1.2 g/m2 side (dry basis). In this manner, upper-coating papers of high gloss were obtained.
  • Examples 7 and 8 were carried out at chilled roll temperatures of 65°C and 82°C, respectively, (lower temperatures than the second-order transition temperature of the copolymer (B), and Comparative Example 2 was carried out at a chilled roll temperature of 120°C, a higher temperature than the second-order transition temperature of copolymer (B).
  • Comparative Examples 3 and 4 were carried out in the same manner as Examples 1 and 3, except for using a latex copolymer having a second-order transition temperature of 72°C and a coating amount of 1.4 g/m2 side (dry basis), wherein high gloss papers were obtained. Comparative Example 3 was made at a chilled roll temperature of 65°C, a lower temperature than the second-order transition temperature. Comparative Example 4 was made at a chilled roll temperature of 95°C, a higher temperature than the second-order transition temperature.
  • Example 7 An upper-coating solution of Example 7 using the copolymer (B) was coated on an uncoated wood-free paper of 127 g/m2 basis weight in a coating amount of 2.6 g/m2 side and was treated in the same manner as in Example 7 by means of a super-calender consisting of chilled rolls and cotton rolls adjusted to a temperature of 82°C, wherein an upper-coated paper was obtained.
  • Example 3 On the base material having a pigment layer used in Examples 1 - 3, there was coated a 30 % upper-coating solution composed of 70 parts (solid content) of the copolymer (B), 25 parts (solid content) of the pigment-coated material used for application of the pigment-coated layer on the base material and 5 parts (solid content) of calcium stearate type lubricant in a coating amount of 8.7 g/m2 side.
  • the resultant upper-coated paper was treated in the same manner as in Example 8 by means of calender to prepare a high gloss paper.
  • test methods and evaluations are as follows.
  • Gloss is measured by adopting the reflectance at an angle of 60° using a Murakami type gloss meter, since the reflectance at an angle of 75° gives equal gloss-values in high gloss papers.
  • SA superart paper
  • CC cast-coated paper
  • a paper is printed by means of an RI-II type printing tester, and is measured by Murakami-type gloss meter under the use of a reflectance at 75°.
  • a paper is printed by means of an RI-II type printing tester. Then, an unprinted paper is contacted with the printed surface.
  • the ink-transfer degree onto an unprinted paper is evaluated visually as follows. ⁇ means no ink-transfer onto an unprinted paper ⁇ means partial ink-transfer X means remarkable ink-transfer
  • a paper was printed by a gravure printing tester (manufactured by Kumagaya Riki Co.) using a half tone gravure as plate. The percentage (%) of missing dots, based on the total number of dots, is indicated.
  • the coated printing papers of the present invention have a higher gloss than super-art papers. These coated printing papers are superior in terms of printability such as ink setting, dry picking resistance and dots. Further, their preparation is superior in terms of adhesion of the polymer latex to calender rolls, that is, an index of easy productivity.
  • the coated papers of the Comparative Examples have insufficient gloss, and are inferior or insufficient in some indexes of printability or adhesion to calender rolls, which means that the purpose of the present invention is not achieved.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)

Claims (9)

  1. Beschichtetes Druckmaterial, daß ein Substrat enthält, das auf einer oder auf beiden Seiten eine Pigmentschicht und eine Oberflächenschicht aus einem thermoplastischen Latexpolymer mit einem Glasumwandlungspunkt von wenigstens 80 °C trägt, die oder jede Oberflächenschicht ist mit einer Satiniermaschine bei einer geringeren Temperatur als dem Glasumwandlungspunkt des thermoplastischen Latexpolymers behandelt worden.
  2. Material nach Anspruch 1, bei dem die oder jede Oberflächenschicht durch Überziehen der oder jeder Pigmentschicht mit einem Latex eines thermoplastischen Latexpolymers mit einer Beschichtungsrate von 0,3-3 g/m² erhalten wird.
  3. Material nach Anspruch 1 oder 2, bei dem das Substrat Papier ist.
  4. Material nach irgendeinem der vorhergehenden Ansprüche, bei dem die Beschichtungsrate des Pigments auf das Substrat 2-40 g/m² in der oder jeder Pigmentschicht ist.
  5. Verfahren zur Herstellung eines beschichteten Druckmaterials, daß die Bildung einer Pigmentschicht auf einer oder beiden Seiten eines Substrates, das Beschichten dessen mit einem Latex eines thermoplastischen Polymers mit einem Glasumwandlungspunkt von wenigstens 80 °C, um eine Oberflächenschicht auf der oder auf jeder Pigmentschicht herzustellen, das Trocknen des erhaltenen Materials und dann die Behandlung der oder jeder Oberflächenschicht mit einer Satiniermaschine bei einer geringeren Temperatur als dem Glasumwandlungspunkt des thermoplastischen Polymers, umfaßt.
  6. Verfahren nach Anspruch 5, bei dem die oder jede Oberflächenschicht durch Beschichten mit besagtem Latex mit einer Beschichtungsrate von 0,3-3 g/m² hergestellt wird.
  7. Verfahren nach Anspruch 5 oder 6, bei dem das Substrat Papier ist.
  8. Verfahren nach irgendeinem der vorhergehenden Ansprüche 5 bis 7, bei dem die Beschichtungsrate des Pigments auf das Substrat 2-40 g/m² in der oder jeder Pigmentschicht ist.
  9. Verfahren nach irgendeinem der Ansprüche 5 bis 8, bei dem die oder jede Oberflächenschicht mit einer Satiniermaschine bei einer 10-30 °C niedrigeren Temperatur als dem Glasumwandlungspunkt des thermoplastischen Latex behandelt wird.
EP91304439A 1991-05-17 1991-05-17 Überzogenes Druckpapier und Verfahren zur Herstellung davon Expired - Lifetime EP0513452B1 (de)

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EP91304439A EP0513452B1 (de) 1991-05-17 1991-05-17 Überzogenes Druckpapier und Verfahren zur Herstellung davon

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EP91304439A EP0513452B1 (de) 1991-05-17 1991-05-17 Überzogenes Druckpapier und Verfahren zur Herstellung davon

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EP0513452B1 true EP0513452B1 (de) 1994-11-09

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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
CA2601958C (en) * 2006-10-03 2011-07-12 Rohm And Haas Company Hollow organic pigment core binder coated paper and paperboard articles and methods for making the same
BRPI0811749A2 (pt) * 2007-05-18 2014-11-11 Topchim N V Composição para o tratamento da superfície de papel, papelão ou semelhante, e, aplicação de composições substrato celulósico.

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JP2856285B2 (ja) * 1989-11-27 1999-02-10 日本製紙株式会社 印刷用塗被紙およびその製造方法

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* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY,vol 47,no08,Feb 1977, p. 899, Abstract no 8759u,Appleton, Wisconsin, US & JP-A-49132305 (KANZAKI PAPER) 19-12-1974 *

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