EP0703009B1 - Metallisierte mehrschichtige Beschichtung und Verfahren zur Herstellung derselben - Google Patents

Metallisierte mehrschichtige Beschichtung und Verfahren zur Herstellung derselben Download PDF

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Publication number
EP0703009B1
EP0703009B1 EP95112469A EP95112469A EP0703009B1 EP 0703009 B1 EP0703009 B1 EP 0703009B1 EP 95112469 A EP95112469 A EP 95112469A EP 95112469 A EP95112469 A EP 95112469A EP 0703009 B1 EP0703009 B1 EP 0703009B1
Authority
EP
European Patent Office
Prior art keywords
metallising
primer
coat
base material
priming
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
EP95112469A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0703009A1 (de
Inventor
Wolfgang Dr. Brickenkamp
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.)
Novelis Deutschland GmbH
Original Assignee
Alcan Deutschland 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 Alcan Deutschland GmbH filed Critical Alcan Deutschland GmbH
Publication of EP0703009A1 publication Critical patent/EP0703009A1/de
Application granted granted Critical
Publication of EP0703009B1 publication Critical patent/EP0703009B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/02—Metal coatings
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/067—Metallic effect
    • B05D5/068—Metallic effect achieved by multilayers

Definitions

  • the present invention relates to a method for Manufacture of a metallized composite and one metallized composite.
  • certain goods such as cigarettes, coffee or the like, are usually packaged in a composite comprising aluminum and plastic films or also paper.
  • the aluminum foil which has a water vapor permeability of approximately 0 g / m 2 ⁇ d, acts as a barrier for gases and moisture.
  • the water vapor permeability of such a composite is around 40-100 g / m 2 d (measured in accordance with DIN 53122), which is, however, not sufficient for many applications, since for aroma packaging of cigarettes and coffee, for example, a water vapor permeability of ⁇ 2 g / m 2 ⁇ D is required.
  • barrier coatings include, for example, latex dispersions with additions of pigments and polymers with a weight per unit area of approximately 18-20 g / m 2 .
  • barrier coatings include, for example, latex dispersions with additions of pigments and polymers with a weight per unit area of approximately 18-20 g / m 2 .
  • barrier coatings as well as a primer layer, a metallization layer and a topcoat are then applied to this base paper, which is to ensure the required water vapor permeability of ⁇ 2 g / m 2 ⁇ d.
  • barrier coatings Due to the large number of operations, the high price and the major ecological disadvantages of barrier coatings are the composite materials with barrier coatings very expensive compared to the composites with aluminum foil.
  • the required low water vapor permeability of almost 0 g / m 2 ⁇ d is achieved in that the coating processes known per se, primer and metallization are carried out twice. As has been found, an excellent barrier effect is achieved by applying a second primer and a second metallization to the first primer layer.
  • From DE-OS 30 17 713 is a method for Coating of plastic films with metal layers known, in which an adhesive layer and a metal layer in succession are applied, after application of the adhesive layer at least one metal layer is evaporated.
  • an adhesive layer and a metal layer in succession are applied, after application of the adhesive layer at least one metal layer is evaporated.
  • the possibly several metal layers not after additionally provided priming or primer orders upset, but directly on top of each other.
  • the known metal layer should Be made of substances that do not diffuse in cause strange ions in the metal layer.
  • DE 39 13 014 describes a coating of objects known with two layers of metal that one of these objects gives decorative metallic appearance.
  • the first Metal layer is directly on the objects upset.
  • a paper is known from JP-52012311 is provided with an aluminum metallization.
  • the base paper with a 15 ⁇ m thick polyethylene film coated, which is rolled. Through a corona discharge increases the surface energy of the polyethylene film and then the film is metallized with aluminum.
  • the base material according to an advantageous embodiment of the invention be paper or plastic film. Because of the construction according to the invention the base material no special Barrier coatings needed can be common, inexpensive Paper or usual plastic film can be used.
  • the basis weights or layer thicknesses specified in claim 5 can be provided.
  • Such a composite results in a water vapor permeability ⁇ 2 g / m 2 ⁇ d.
  • the total amount of primer and top coat applied is less than 5 g / m 2 . This is a significant advantage over the total application quantity of 20-25 g / m 2 in the conventional solutions, since this makes the material easier to recycle.
  • the figure shows a partially sectioned cross section a composite according to the invention.
  • the composite material shown in the figure consists of a base material 10 in the form of conventional coated paper with a basis weight of 50 g / m 2 .
  • a first primer 12 in the form of a coating of primer varnish with a basis weight of 1.8 g / m 2 is applied to the base material 10.
  • a first metallization 14 with a layer thickness of 300 ⁇ is evaporated onto the first primer 12.
  • a second primer 16 is applied from a primer with a basis weight of 1.8 g / m 2 .
  • a cover layer 20 in the form of a top coat with a basis weight of 1.0 g / m 2 is applied to the second metallization 18.
  • the water vapor permeability of this composite is ⁇ 2 g / m 2 ⁇ d.
  • the material of the base coat and that of the top coat is a nitrocellulose paint.
  • the metallization consists of aluminum.

Landscapes

  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Physical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP95112469A 1994-09-16 1995-08-08 Metallisierte mehrschichtige Beschichtung und Verfahren zur Herstellung derselben Expired - Lifetime EP0703009B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433081 1994-09-16
DE4433081 1994-09-16

Publications (2)

Publication Number Publication Date
EP0703009A1 EP0703009A1 (de) 1996-03-27
EP0703009B1 true EP0703009B1 (de) 1999-10-27

Family

ID=6528430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112469A Expired - Lifetime EP0703009B1 (de) 1994-09-16 1995-08-08 Metallisierte mehrschichtige Beschichtung und Verfahren zur Herstellung derselben

Country Status (7)

Country Link
EP (1) EP0703009B1 (da)
AT (1) ATE185986T1 (da)
DE (1) DE59507132D1 (da)
DK (1) DK0703009T3 (da)
ES (1) ES2139793T3 (da)
GR (1) GR3032446T3 (da)
PT (1) PT703009E (da)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368140A (en) * 1941-02-05 1945-01-30 Reddir Inc Package and wrapper
DE1225939B (de) 1963-11-16 1966-09-29 Leybold Hochvakuum Anlagen Verfahren zur Herstellung einer aus mehreren Lagen zusammengesetzten duennen Schicht durch Hochvakuumbedampfung
US3480464A (en) * 1964-09-21 1969-11-25 Dow Chemical Co Laminate material and method of making
US3463659A (en) * 1965-10-22 1969-08-26 Oxford Paper Co Vacuum metallized paper
JPS5212311A (en) 1975-07-15 1977-01-29 Toppan Printing Co Ltd Alminium vapor deposited paper
US4349402A (en) * 1980-02-08 1982-09-14 Transfer Print Foils, Inc. Method for producing a bright metalized foil or board
DE3017713A1 (de) 1980-05-08 1981-11-12 Siemens AG, 1000 Berlin und 8000 München Verfahren zur fortlaufenden beschichtung von kunststoffolien mit metallschichten
US4911811A (en) * 1988-07-14 1990-03-27 The Stanley Works Method of making coated articles with metallic appearance
US5290625A (en) * 1992-05-22 1994-03-01 Davidson Textron Inc. System for making bright aluminum parts
US5284679A (en) * 1992-11-16 1994-02-08 Davidson Textron Inc. Method for making bright trim articles

Also Published As

Publication number Publication date
PT703009E (pt) 2000-04-28
DK0703009T3 (da) 1999-12-27
ATE185986T1 (de) 1999-11-15
DE59507132D1 (de) 1999-12-02
GR3032446T3 (en) 2000-05-31
EP0703009A1 (de) 1996-03-27
ES2139793T3 (es) 2000-02-16

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