EP0670386A1 - Folie, insbesondere zum Verpacken von fetthaltigen Produkten, und Verfahren zur Herstellung derselbe - Google Patents

Folie, insbesondere zum Verpacken von fetthaltigen Produkten, und Verfahren zur Herstellung derselbe Download PDF

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Publication number
EP0670386A1
EP0670386A1 EP95400484A EP95400484A EP0670386A1 EP 0670386 A1 EP0670386 A1 EP 0670386A1 EP 95400484 A EP95400484 A EP 95400484A EP 95400484 A EP95400484 A EP 95400484A EP 0670386 A1 EP0670386 A1 EP 0670386A1
Authority
EP
European Patent Office
Prior art keywords
paper
layer
coating
sheet
sheet according
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.)
Granted
Application number
EP95400484A
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English (en)
French (fr)
Other versions
EP0670386B1 (de
Inventor
Jean-Marie Sallaind
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.)
Ahlstrom Research And Competence Center SA
Original Assignee
C M B FLEXIBLE
CMB Flexible
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Publication date
Application filed by C M B FLEXIBLE, CMB Flexible filed Critical C M B FLEXIBLE
Publication of EP0670386A1 publication Critical patent/EP0670386A1/de
Application granted granted Critical
Publication of EP0670386B1 publication Critical patent/EP0670386B1/de
Anticipated expiration legal-status Critical
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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
    • D21H19/08—Metal coatings applied as vapour, e.g. in vacuum
    • 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
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

Definitions

  • the present invention relates to a sheet intended in particular for packaging fatty products, in particular for packaging fatty food products, of the type comprising a sheet of paper resistant to humidity and forming a barrier to grease.
  • a sheet commonly used consists of a sheet of parchment paper with, glued on a solid surface with a thin layer of wax, an aluminum sheet.
  • Such packaging sheets have a relatively high production cost.
  • the present invention therefore aims to provide a sheet intended in particular for the packaging of fatty products, the production cost of which is significantly lower.
  • the subject of the invention is a sheet intended in particular for packaging, of the aforementioned type, characterized in that one face of the sheet of paper is, in at least one region, coated and then covered with a layer of a material containing metal.
  • the invention may have one of the following characteristics:
  • the paper resistant to humidity and forming a barrier to grease is parchment paper or so-called greaseproof paper.
  • the invention also relates to two methods of manufacturing a sheet as defined above.
  • said treatment can consist in coating the second face of the paper, or in soaking the sheet in a bath.
  • the application of the layer of metallized inks is carried out by a printing technique.
  • the packaging sheet 1 comprises a sheet of paper 2 resistant to humidity and forming a barrier to grease.
  • This sheet can, for example, consist of a sheet of parchment paper or a sheet of so-called greaseproof paper, such as for example SERLALIT WS 40g paper from the Finnish company FINAPAR.
  • the sheet of paper 2 has on one of its faces a coating 3 produced according to conventional papermaking techniques.
  • the coating coating applied will advantageously have a surface density of between 10 and 12 g / m2 approximately.
  • it is customary to call "coating" the deposition on a raw paper of a layer based on fine mineral pigments.
  • the coating of the paper is used to give it the gloss, the color and the luster which then make it possible to obtain an excellent printing result.
  • coating plasters differ fundamentally from printing products based on inks.
  • Layer 4 also gives the sheet barrier properties with ultraviolet rays suitable for the conservation of packaged materials.
  • the aluminum or metallic layer 4 having a thickness of 300 to 500 Angström (10 ⁇ 10m) approximately, is represented by a single line in FIG. 3. It results from a metallization of the coated and prepainted surface of the sheet of paper 2, and is not thick enough to be compared to a thin sheet of metal. Indeed, the thickness is not sufficient to allow the metal to form a sheet having a compact and aggregated structure.
  • the thickness of the metal layer is such that its optical density is between 2.8 and 3 and its specific resistance is approximately 1 ⁇ / cm2.
  • the packaging sheet 1 shown in FIG. 1 has on its metallic layer 3 an imprint comprising a layer of bonding varnish 5, in flat on the metal layer 4.
  • imprint comprising a layer of bonding varnish 5, in flat on the metal layer 4.
  • inks 6a, 6b, 6c, 6d are deposited by zones identified to represent the patterns that one wishes to appear.
  • Each layer of ink is made up of a different color ink, allowing printing in full color.
  • the different layers of inks are of course applied successively, according to a conventional printing process.
  • the representation that is made is schematic to show the successive layers of ink, but we understand that in reality, the inks of different colors are arranged in contact with each other, with certain overlaps.
  • a transparent lacquer layer 7 in solid color on the inks 6a to 6d protects the printing from possible damage by mechanical contact and improves the visual appearance of the packaging sheet thus obtained.
  • a packaging sheet comprising only the sheet of paper 2, the layer resulting from the coating 3 and the metal layer 4 but comprising no printing.
  • layer 7 is optional.
  • Figures 2 to 4 illustrate the partial results obtained at the various stages of a first method of manufacturing a packaging sheet according to the invention such as sheet 1 described above.
  • Figure 2 is shown a basic sheet of paper 12 which is used for the implementation of this first method. It is a paper with moisture resistance and grease barrier properties.
  • the paper is coated on one side of said paper by coating with a coating coating, for example by a roller coating technique.
  • a layer 13 resulting from the flat coating on the sheet of paper 12 is the result presented in FIG. 2 of this step of the process.
  • the sheet of paper 12 with a flattened layer from its coating 13 then has a very smooth surface condition essential for subsequent quality metallization.
  • the next step in the process consists in covering this layer 13 resulting from the coating with a layer 13a of pre-lacquer varnish and then with a layer of aluminum 14, represented in FIG. 4 and resulting from a step of metallization.
  • This metallization could, for example, be carried out under vacuum.
  • the process can then be supplemented by the printing steps consisting in depositing the layers 5, 6a to 6d and optionally 7 in FIG. 1.
  • FIGS. 5 to 7 illustrate the partial results obtained at the different stages of a second method of manufacturing a packaging sheet according to the invention such as sheet 1 of FIG. 1.
  • FIG. 5 is shown a sheet of conventional coated paper 20 which is used as base paper for the implementation of this second method.
  • the coated sheet of paper 20 consists of a sheet of paper 22 and a layer 23 of coating plaster.
  • the coated paper 20 having a very smooth surface condition, is capable of receiving directly on its coated face a layer 23a of prepainting varnish and then a metal layer 24 deposited by metallization, for example under vacuum. These operations constitute the following stages of the second manufacturing process, and their result is shown in FIG. 6.
  • the coated prepainted and metallized sheet of paper then undergoes a treatment step giving the paper 22 moisture resistance and grease barrier properties.
  • This processing step can for example consist of soaking the packaging sheet in a bath containing agents 25 capable of impregnating the base paper 22 by giving it the desired properties. moisture resistance and grease barrier.
  • This treatment step can also consist in coating the non-metallized face of the paper with a coating giving the paper the desired properties. of greasability and resistance to humidity, as shown in 25a in broken lines in Figure 7.
  • FIGS. 5 to 7 can also be supplemented by the printing steps. In this case, these steps can be carried out in line with the step for processing the paper described above with reference to FIG. 7.
  • the metallic layer 4 obtained by a metallization technique can be replaced by a layer of metallized inks applied by conventional printing techniques.
  • a metallized inks applied by conventional printing techniques.
EP95400484A 1994-03-04 1995-03-06 Folie, insbesondere zum Verpacken von fetthaltigen Produkten, und Verfahren zur Herstellung derselben Expired - Lifetime EP0670386B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402549 1994-03-04
FR9402549A FR2716869B1 (fr) 1994-03-04 1994-03-04 Feuille d'emballage pour produits gras et procédés de fabrication associés.

Publications (2)

Publication Number Publication Date
EP0670386A1 true EP0670386A1 (de) 1995-09-06
EP0670386B1 EP0670386B1 (de) 2000-06-14

Family

ID=9460712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400484A Expired - Lifetime EP0670386B1 (de) 1994-03-04 1995-03-06 Folie, insbesondere zum Verpacken von fetthaltigen Produkten, und Verfahren zur Herstellung derselben

Country Status (8)

Country Link
EP (1) EP0670386B1 (de)
AT (1) ATE193916T1 (de)
DE (1) DE69517454T2 (de)
DK (1) DK0670386T3 (de)
ES (1) ES2149330T3 (de)
FR (1) FR2716869B1 (de)
GR (1) GR3034315T3 (de)
PT (1) PT670386E (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743257A1 (de) * 1995-05-15 1996-11-20 SIBILLE DALLE, SocietéAnonyme Lebensmittelverpackung, die ein fettbeständiges Papier enthält
EP0756036A2 (de) * 1995-07-24 1997-01-29 Sibille Dalle Beschichtetes Pergamentpapier und Verfahren zu seiner Herstellung
WO2000077300A1 (en) * 1999-06-16 2000-12-21 Vacumet Corp. Metallized paper with grease resistance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH366195A (de) * 1959-02-13 1962-12-15 Ziegler Papierveredlung Ag Her Verfahren zur Herstellung von beschichtetem Papier
AU2416867A (en) * 1968-07-08 1970-01-15 Wonthaggi Publishing Company Pty. Ltd Improvements in or relating to wrapping materials
GB2053283A (en) * 1979-06-29 1981-02-04 Mitsui Petrochemical Ind Metal-coated paper
WO1982003202A1 (en) * 1981-03-18 1982-09-30 Mfg Co Dennison Metallized film-paper
US4521492A (en) * 1982-04-05 1985-06-04 Champion International Corporation Light refractive coated paperboard

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH366195A (de) * 1959-02-13 1962-12-15 Ziegler Papierveredlung Ag Her Verfahren zur Herstellung von beschichtetem Papier
AU2416867A (en) * 1968-07-08 1970-01-15 Wonthaggi Publishing Company Pty. Ltd Improvements in or relating to wrapping materials
GB2053283A (en) * 1979-06-29 1981-02-04 Mitsui Petrochemical Ind Metal-coated paper
WO1982003202A1 (en) * 1981-03-18 1982-09-30 Mfg Co Dennison Metallized film-paper
US4521492A (en) * 1982-04-05 1985-06-04 Champion International Corporation Light refractive coated paperboard

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743257A1 (de) * 1995-05-15 1996-11-20 SIBILLE DALLE, SocietéAnonyme Lebensmittelverpackung, die ein fettbeständiges Papier enthält
EP0943557A1 (de) * 1995-05-15 1999-09-22 Ahlstrom Industries SA Nahrungsmittelbehälter aus Einschicht- oder Mehrschichtmaterial und Herstellungsverfahren
EP0756036A2 (de) * 1995-07-24 1997-01-29 Sibille Dalle Beschichtetes Pergamentpapier und Verfahren zu seiner Herstellung
FR2737228A1 (fr) * 1995-07-24 1997-01-31 Sibille Dalle Papier sulfurise couche et son procede de fabrication
EP0756036A3 (de) * 1995-07-24 1997-02-26 Sibille Dalle Beschichtetes Pergamentpapier und Verfahren zu seiner Herstellung
WO2000077300A1 (en) * 1999-06-16 2000-12-21 Vacumet Corp. Metallized paper with grease resistance

Also Published As

Publication number Publication date
GR3034315T3 (en) 2000-12-29
EP0670386B1 (de) 2000-06-14
DK0670386T3 (da) 2000-07-31
ATE193916T1 (de) 2000-06-15
DE69517454T2 (de) 2001-03-08
DE69517454D1 (de) 2000-07-20
PT670386E (pt) 2000-11-30
ES2149330T3 (es) 2000-11-01
FR2716869B1 (fr) 1996-05-24
FR2716869A1 (fr) 1995-09-08

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