EP0132668B1 - Metallbeschichtetes Papier und Verfahren zu seiner Herstellung - Google Patents

Metallbeschichtetes Papier und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0132668B1
EP0132668B1 EP84107963A EP84107963A EP0132668B1 EP 0132668 B1 EP0132668 B1 EP 0132668B1 EP 84107963 A EP84107963 A EP 84107963A EP 84107963 A EP84107963 A EP 84107963A EP 0132668 B1 EP0132668 B1 EP 0132668B1
Authority
EP
European Patent Office
Prior art keywords
coating
metal
process according
weight
binder
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
Application number
EP84107963A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0132668A1 (de
Inventor
Wolfgang Noack
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.)
Eckart Werk Standard Bronzepulver Werke Carl Eckart GmbH and Co
Original Assignee
Eckart Werk Standard Bronzepulver Werke Carl Eckart GmbH and Co
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 Eckart Werk Standard Bronzepulver Werke Carl Eckart GmbH and Co filed Critical Eckart Werk Standard Bronzepulver Werke Carl Eckart GmbH and Co
Priority to AT84107963T priority Critical patent/ATE23888T1/de
Publication of EP0132668A1 publication Critical patent/EP0132668A1/de
Application granted granted Critical
Publication of EP0132668B1 publication Critical patent/EP0132668B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • 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
    • D21H19/02—Metal coatings
    • D21H19/06—Metal coatings applied as liquid or powder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
    • Y10T428/24909—Free metal or mineral containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
    • Y10T428/277—Cellulosic substrate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper

Definitions

  • the invention relates to a process for the production of metal-coated paper by applying a coating composition to a paper support layer, the coating composition consisting of a metal pigment paste which contains metal particles dispersed in an organic solvent and having a flake structure, and a binder and prepared by gravure printing onto the paper support layer in such a way Is applied such that the thickness of the coating corresponds to a coating weight of 0.5-10 g / m 2 and the metal content in the coating is 5-90% by weight, based on the total weight of the coating.
  • Equipping a cigarette packaging with an aluminum-coated (wrapping) paper is a considerable cost factor.
  • the price per square meter of the paper is approximately DM 0.30. This price mainly includes the material costs due to the aluminum content, which depend on the amount of metal used. With a thickness of the aluminum foil of 7 ⁇ m, the consumption is approximately 20 g for one square meter.
  • the thickness of the aluminum coating in the known cigarette wrapping papers is between 6 and 15 ⁇ m.
  • a thin, uncoated paper with a square meter weight of 22-40 g is used as the carrier layer for the aluminum foil.
  • the coating composition is produced from a dispersion containing the metal powder, which has a very high water content.
  • Very thin papers such as those used especially for packaging films, are difficult to coat with such a mass due to the risk of tearing that occurs.
  • the passage of the paper carrier layer to be coated through the coating device would have to take place comparatively slowly, also because of the relatively long duration of the drying process.
  • US Pat. No. 4,233,195 describes the method for the production of metal-coated paper which is assumed to be known in the preamble of the main claim.
  • a metal pigment paste of leafing quality is used for the preparation of the coating compound to be applied to a paper carrier layer by gravure printing.
  • the leafing effect of the metal particles contained in the coating composition is essential for the formation of the surface of the metal coating. It consists in the fact that the metal particles migrate out of the coating towards its surface and finally concentrate there. The prerequisite for this is first of all that the metal particles are not wetted by the solvent and binder contained in the coating composition, which is why the paste should contain a certain proportion of stearic acid.
  • a cover layer consisting of the thermoplastic binder must be produced in the known method.
  • the coating applied to the paper carrier layer must be subjected to a special heat treatment, in such a way that the thermoplastic binder resin to over its softening point (approx. 100-200 ° C) is heated.
  • the invention is therefore based on the object to further develop the method specified in the preamble of the main claim in such a way that, compared to the prior art, metal-coated papers can be produced with a much lower coating thickness and overall thickness, so that the manufacturing costs become clear due to the lower metal consumption let reduce.
  • the abrasion resistance of the metal coating should remain guaranteed, so that the metal papers obtainable according to the invention can also be used with particular advantage on fast-running packaging machines because of their low thickness.
  • the metal pigment paste used for the preparation of the coating composition contains metal particles of non-leafing quality that are fully wettable by the binder and that the solvent has an evaporation number of less than 25.
  • non-aqueous solvents for the preparation of the coating composition enables the use of relatively low-viscosity printing inks with a correspondingly low metal pigment content. Due to the low viscosity of the printing ink and the high volatility of the solvents contained in the printing ink, it is possible to work at a higher coating (printing) speed (up to 350 m / min.) Than when using higher-viscosity coating compositions in which the metal particles are in a non-volatile, aqueous medium are distributed. In addition, the use of such highly viscous printing inks in the gravure printing process would cause problems, above all because the printing parts of the printing form clog up slightly and the result is unclean printing results. The printing process would have to be interrupted more frequently to clean the printing form. The use of higher-viscosity, aqueous pigment systems in a gravure printing process would therefore be uneconomical in comparison to the process operating according to the invention.
  • the method according to the invention in contrast to the method according to US Pat. No. 4,233,195, uses a metal paste which contains non-leafing quality metal particles, the metal particles are already prewetted by the volatile (organic) solvents contained in the paste , so that a favorable prerequisite for intensive wetting of the metal particles with the binder added later is created.
  • the method according to the invention can therefore be carried out with a comparatively high coating speed using very thin coating thicknesses and using very light paper support layers.
  • Coated papers are expediently coated according to the invention, the square meter weight of which is preferably 40-60 g.
  • the metal coating produced according to the invention preferably consists of aluminum, a copper-zinc alloy (gold bronze) or copper.
  • the coating weights used according to the invention are expediently between 0.5 and 2.5 g / m 2. In many cases the coating weight will be 1.5-2.5 g / m 2 .
  • the metal content in the coating is preferably between 40-90% by weight, based on the total weight of the coating. In comparison to the previously practiced method described at the outset, in which a metal foil is laminated onto a paper carrier layer, this results in considerable savings in metal.
  • the solvents contained in the metal paste used according to the invention for the preparation of the printing ink should preferably be free of aromatics.
  • Ethyl acetate and isopropanol may be mentioned as examples of the solvents to be considered in this connection.
  • Printing inks are preferably used based on resin-based binders (varnish). They too should preferably be free of aromatic compounds.
  • the state of the art can be used to select the diluents for the printing ink.
  • These are preferably (alcoholic) solvents combined under the name "Sprit”, such as. B. butanol and isopropanol.
  • the invention proposes that the still moist metal coating of the web of material pulled off from the impression cylinder by means of a tool pressed against the metal coating, e.g. B. a roll, and then dry.
  • a tool pressed against the metal coating e.g. B. a roll
  • This spreading in which printing ink deposited on elevations is pressed into the depressions present between them, eliminates any roughness or unevenness in the surface of the printing layer.
  • composition of a printing ink which can be used in the method according to the invention is given below.
  • Aluminum paste with 80% metal content (non-leafing quality; particle size ⁇ 40 ⁇ m)
  • the ink is received by the gravure cylinder 2 from the ink tray 1 and transferred to the paper web 3 to be printed, which is pressed against the surface of the printing cylinder 2 by means of the impression cylinder 4.
  • 5 denotes a doctor blade against the surface of the impression cylinder 2.
  • the contact pressure can form a uniform and smooth surface on the metal coating, so that after subsequent drying in the drying device 7, into which the coated material web runs after passing through the deflection roller 8, no unevenness (roughness) can be determined on the surface of the metal coating .

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Cartons (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP84107963A 1983-07-22 1984-07-07 Metallbeschichtetes Papier und Verfahren zu seiner Herstellung Expired EP0132668B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107963T ATE23888T1 (de) 1983-07-22 1984-07-07 Metallbeschichtetes papier und verfahren zu seiner herstellung.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3326457A DE3326457C2 (de) 1983-07-22 1983-07-22 Verfahren zur Herstellung von metallbeschichtetem Papier
DE3326457 1983-07-22
DE8321150U DE8321150U1 (de) 1983-07-22 1983-07-22 Zigarettenschachtel

Publications (2)

Publication Number Publication Date
EP0132668A1 EP0132668A1 (de) 1985-02-13
EP0132668B1 true EP0132668B1 (de) 1986-11-26

Family

ID=37776585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107963A Expired EP0132668B1 (de) 1983-07-22 1984-07-07 Metallbeschichtetes Papier und Verfahren zu seiner Herstellung

Country Status (10)

Country Link
US (1) US4729909A (da)
EP (1) EP0132668B1 (da)
JP (1) JPS6045694A (da)
CA (1) CA1210283A (da)
DE (2) DE3326457C2 (da)
DK (1) DK155957C (da)
ES (1) ES8603003A1 (da)
HK (1) HK87788A (da)
IE (1) IE55652B1 (da)
ZA (1) ZA845637B (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915943A1 (de) * 1999-04-09 2000-10-12 Ovd Kinegram Ag Zug Dekorationsfolie

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370976A (en) * 1992-05-22 1994-12-06 Williamson Printing Corporation Metallic color printing process
DE4333462A1 (de) * 1993-09-30 1995-04-06 Focke & Co Zigaretten-Packung sowie Materialbahn zum Herstellen einer Innenumhüllung für diese
DE4412019C2 (de) * 1994-04-07 1996-08-01 Alcan Gmbh Zigaretteninneneinschlag aus metallisiertem Papier sowie Verfahren zu seiner Herstellung
US5630363A (en) 1995-08-14 1997-05-20 Williamson Printing Corporation Combined lithographic/flexographic printing apparatus and process
CA2603118A1 (en) * 2005-03-29 2006-10-05 Symbol Technologies, Inc. Smart radio frequency identification (rfid) items
EP3093138A1 (en) * 2015-05-13 2016-11-16 Reemtsma Cigarettenfabriken GmbH Inner liner for a package for tobacco and/or smoking related articles with reverse printing on printable foil
CN106601873B (zh) * 2016-12-16 2018-06-29 苏州腾晖光伏技术有限公司 一种用于czts薄膜的旋涂装置及制备czts电池的方法
CN110510254A (zh) * 2018-05-22 2019-11-29 纷美(北京)贸易有限公司 包装片材
DE102019105926A1 (de) * 2019-03-08 2020-09-10 Progress Packaging Gmbh Isolierverpackung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233195A (en) * 1979-02-26 1980-11-11 Reynolds Metals Company Metallic printing inks and metallized papers printed therewith

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312927A (en) * 1938-09-22 1943-03-02 Murray Liquafilm Corp Coating of paper
US2362884A (en) * 1939-07-12 1944-11-14 Warren S D Co Process of making aluminum coated paper
US3053676A (en) * 1958-03-31 1962-09-11 Higbee William Edward Surface coating compositions
DE1233248B (de) * 1964-09-07 1967-01-26 Feldmuehle Ag Verfahren zum Herstellen metallfolienartiger Oberflaechen
JPS5386819A (en) * 1976-12-28 1978-07-31 Gojo Paper Mfg Production of paper for food container
US4321087A (en) * 1978-12-21 1982-03-23 Revlon, Inc. Process for making metallic leafing pigments
US4443256A (en) * 1982-04-02 1984-04-17 E. I. Du Pont De Nemours And Company Aluminum flake dispersions
US4521492A (en) * 1982-04-05 1985-06-04 Champion International Corporation Light refractive coated paperboard

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233195A (en) * 1979-02-26 1980-11-11 Reynolds Metals Company Metallic printing inks and metallized papers printed therewith

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915943A1 (de) * 1999-04-09 2000-10-12 Ovd Kinegram Ag Zug Dekorationsfolie

Also Published As

Publication number Publication date
JPS6348999B2 (da) 1988-10-03
CA1210283A (en) 1986-08-26
ZA845637B (en) 1985-02-27
HK87788A (en) 1988-11-04
DE3326457C2 (de) 1993-06-03
US4729909A (en) 1988-03-08
DE8321150U1 (de) 1983-10-27
DE3326457A1 (de) 1985-02-07
IE55652B1 (en) 1990-12-05
ES534522A0 (es) 1985-12-01
EP0132668A1 (de) 1985-02-13
JPS6045694A (ja) 1985-03-12
DK357984A (da) 1985-01-23
DK155957B (da) 1989-06-05
DK155957C (da) 1989-10-30
IE841750L (en) 1985-01-22
DK357984D0 (da) 1984-07-20
ES8603003A1 (es) 1985-12-01

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