WO2003099586A1 - Procede pour preparer des films plastiques partiellement metallises et imprimes - Google Patents

Procede pour preparer des films plastiques partiellement metallises et imprimes Download PDF

Info

Publication number
WO2003099586A1
WO2003099586A1 PCT/EP2003/005553 EP0305553W WO03099586A1 WO 2003099586 A1 WO2003099586 A1 WO 2003099586A1 EP 0305553 W EP0305553 W EP 0305553W WO 03099586 A1 WO03099586 A1 WO 03099586A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
fact
varnish
process according
comprised
Prior art date
Application number
PCT/EP2003/005553
Other languages
English (en)
Inventor
Roberto Scrima
Original Assignee
Mipa S.P.A.
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 Mipa S.P.A. filed Critical Mipa S.P.A.
Priority to AU2003242582A priority Critical patent/AU2003242582A1/en
Priority to EP03755141A priority patent/EP1509406A1/fr
Publication of WO2003099586A1 publication Critical patent/WO2003099586A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1716—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/10—Applying flat materials, e.g. leaflets, pieces of fabrics
    • B44C1/14—Metallic leaves or foils, e.g. gold leaf
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2439/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers

Definitions

  • the metallisation process can be carried out after having applied on specific areas a detaching resin which, at the end of the process, is removed thus obtaining the partially metallised film (JP 59109529; AN 1984-
  • Another common method consists in the use of shaped templates which, by blocking the passage of the metal during the process of metallisation under vacuum, limit the deposition of the metal onto the areas of interest.
  • a system used to date for this aim consists in the zonal printing of a metallised film with materials resistant to chemical attack, and in the successive removal of the metal from the non protected areas by treatment with aqueous solutions containing acids or alkalis.
  • the process when carried out at high speed, does not guarantee the homogeneity of the product; in addition the process requires the heating of the washing solution to a temperature of 60-100°C in order to allow to reduce the concentration of chemical agents (for example NaOH) and, at the same time, to maintain the same solubilising capacity.
  • chemical agents for example NaOH
  • the process provides the use of inks resistant to the aggressive chemicals, in particular inks containing pigments with such characteristics; the use of these inks consequently limits graphic possibilities and the achievable tonalities.
  • the process requires particular attention during the washing step to protect both the various parts of the machine from the chemical agents and the individuals carrying out the process; in addition careful disposal of the chemical agents is required after neutralisation .
  • the invention relates to a process for the preparation of partially metallised and printed plastic film and to the monofilm and coupled wrappers obtained from it.
  • plastic films usable in the present invention comprise polypropylene, bioriented, co-extruded or lacquered polypropylene, polyesters and polyamides, preferably polypropylene and more preferably lacquered polypropylene.
  • the process comprises the following steps:
  • A) a hydrosoluble varnish is applied over the whole surface of a plastic film using a rotogravure printing machine;
  • the film is metallised under vacuum, depositing a thin layer of aluminium over the whole surface of the varnished side of the film;
  • the metallised film is printed with water-resistant inks using the rotogravure machine;
  • the process of the present invention allows to obtain printed wrappers having the characteristic of bearing a metallic layer under the inks and, at the same time, transparent areas which allow the viewing of the contents of the package.
  • the printed areas have particularly brilliant colours and exceptional metallic appearance, producing therefore graphics of a qualitative level never achieved with similar techniques known to date.
  • the hydrosoluble varnish used in step A) is preferably a varnish containing polyvinylpyrrolidone in an alcoholic solvent, having a dry residue comprised between 32 and 36 % and a viscosity comprised between 52" and 58" (#4 Ford cup).
  • the alcoholic solvent can be methanol, ethanol or isopropanol, preferably ethanol.
  • the varnish is adjusted to the viscosity necessary for the printing process by dilution with a low molecular weight alcohol such as methanol, ethanol or isopropanol, preferably ethanol.
  • the viscosity of the diluted product can vary between 14" and 22" (#4 Ford cup), preferably between 16" and 20", in particular between 17" and 19".
  • the varnish is applied at a machine speed comprised between 100 and 150 metres/minute and with a drying temperature comprised between 80 and 110°C;
  • the application takes place, preferably, at a speed comprised between 120 and
  • the amount of varnish deposited onto the film can vary between 0.5 and 2.0 g/m 2 , preferably between 0.5 and 1.4 g/m 2 , more preferably between 0.5 and 1.1 g/m 2 .
  • a particularly preferred subject of the present invention is hence the process according to steps A), B),C) and D) applied onto lacquered polypropylene film as well as the simple or coupled film thus obtained.
  • the metallising process of step B) can be carried out according to the known plastic film metallising processes so as to obtain a metallic layer having optical density comprised between 1.2 and 2.0, preferably between 1.4 and 1.8 (Theimer Type DDM 4).
  • the inks used in step C) are nitrocellulosic type, inks for rotoflexographic use suited to the printing of metallised films without the use of primers and having high resistance to water; the inks can be added to by antiscouring or antiscratch additives to improve their resistance during the washing process.
  • the inks have a dry residue varying between 30 and 60 % according to the pigment bases used and are dilutable with ethyl acetate or mixtures of ethyl acetate and ethyl alcohol.
  • the amount of ink applied onto the metallised film can vary from 1.5 to 4.5 g/m 2 depending on the graphic to be realised.
  • the washing with water of step D) is carried out in a special machine which allows the removal of the hydrosoluble varnish and the metal deposited on it from the areas not protected by the inks; the washing process can be carried out at a speed comprised between 80 and 150 metres/minute and the drying of the washed film at a temperature comprised between 80 and 120 °C.
  • the washing is preferably carried out at a speed comprised between 100 and 130 metres/minute and with a drying temperature comprised between 90 and 110 °C.
  • the film thus obtained can be used as it is as wrapper for containers, for example such as external wrapper for food containers, or as it is as wrapper in direct contact with food; or can be used following coupling with one or more plastic films.
  • the coupling can be carried out both through the known technologies using solvent based adhesives and through the known technologies based on solvent free adhesives.
  • the single film or the coupled wrapper can then be subjected to further treatments used in the packaging sector, such as, for example, the application of welding lacquers or "release” varnishes.
  • plastic films which can be used for coupling with partially metallised and printed films are polypropylene, bioriented, co-extruded or lacquered polypropylene, polyester and polyethylene, preferably co-extruded or lacquered polypropylene and polyethylene.
  • the varnish is applied after dilution with ethyl alcohol so as to obtain a viscosity of 18" (#4 Ford cup).
  • the varnish is applied with a drying temperature varying between 95 and 105 °C so as to deposit onto the film a quantity of 1.0 gram per square meter of surface area.
  • the film is then dried at a temperature varying between 90 and 110 °C.
  • the plastic film thus obtained has an area printed with a design covering approx. 30% of the surface of the film.
  • the inks are particularly brilliant and have a pronounced metallic appearance due to the presence of the underlying thin layer of aluminium.
  • the remaining non-printed area of the film is perfectly transparent without any trace of the metal previously deposited.
  • the light transmission of the film (Haze 1.2% - ASTM D 1003) is substantially equivalent to the light transmission of the film prior to the process (Haze 1.0 % - ASTM D1003). This indicates that the process, despite the use of ethyl alcohol, is carried out in such a manner so as not to damage the lacquered surface of the original film.
  • a coextruded polypropylene film with a thickness of 30 microns is subjected to the process as described in Example 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé pour préparer des films partiellement métallisés et imprimés, ainsi que les films ainsi obtenus. Ce procédé consiste à appliquer un vernis hydrosoluble sur toute la surface d'un film plastique, à métalliser ce film, à imprimer le film avec des encres résistantes à l'eau, puis à laver le film avec de l'eau, ce qui induit l'élimination du vernis hydrosoluble et du métal déposé sur le vernis lui-même.
PCT/EP2003/005553 2002-05-28 2003-05-27 Procede pour preparer des films plastiques partiellement metallises et imprimes WO2003099586A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003242582A AU2003242582A1 (en) 2002-05-28 2003-05-27 A process for the preparation of partially metallised and printed plastic films
EP03755141A EP1509406A1 (fr) 2002-05-28 2003-05-27 Procede pour preparer des films plastiques partiellement metallises et imprimes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002MI001150A ITMI20021150A1 (it) 2002-05-28 2002-05-28 Processo per la preparazione di film plastici parzialmente metallizzati e stampati
ITMI02A001150 2002-05-28

Publications (1)

Publication Number Publication Date
WO2003099586A1 true WO2003099586A1 (fr) 2003-12-04

Family

ID=11449990

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005553 WO2003099586A1 (fr) 2002-05-28 2003-05-27 Procede pour preparer des films plastiques partiellement metallises et imprimes

Country Status (4)

Country Link
EP (1) EP1509406A1 (fr)
AU (1) AU2003242582A1 (fr)
IT (1) ITMI20021150A1 (fr)
WO (1) WO2003099586A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221037A1 (en) * 2013-10-30 2016-08-04 San Diego Gas & Electric Company Nonconductive films for lighter than air balloons
US11738537B2 (en) 2013-10-30 2023-08-29 San Diego Gas & Electric Company, c/o Sempra Energy Nonconductive films for lighter than air balloons

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242378A (en) * 1979-03-29 1980-12-30 Reiko Co., Ltd. Method of making a decorated film with a metal layer in the form of a given pattern
US4507352A (en) * 1981-10-15 1985-03-26 Sony Corporation Overwrapping film
US4552614A (en) * 1984-06-18 1985-11-12 Beckett Packaging Limited Demetallizing method and apparatus
US4610755A (en) * 1985-04-16 1986-09-09 Beckett Donald E Demetallizing method
US4687680A (en) * 1983-12-28 1987-08-18 Oike Industrial Co., Ltd. Stamping foil
EP0413819A1 (fr) * 1988-09-30 1991-02-27 Nissha Printing Co., Ltd. Materiau de transfert pourvu d'un motif de brillant metallique et procede de production
WO2000066653A1 (fr) * 1999-04-30 2000-11-09 E.I. Du Pont De Nemours And Company Feuille composite
WO2002044439A1 (fr) * 2000-11-29 2002-06-06 Mipa S.P.A. Procede de preparation de films plastiques imprimes et partiellement metallises

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242378A (en) * 1979-03-29 1980-12-30 Reiko Co., Ltd. Method of making a decorated film with a metal layer in the form of a given pattern
US4507352A (en) * 1981-10-15 1985-03-26 Sony Corporation Overwrapping film
US4687680A (en) * 1983-12-28 1987-08-18 Oike Industrial Co., Ltd. Stamping foil
US4552614A (en) * 1984-06-18 1985-11-12 Beckett Packaging Limited Demetallizing method and apparatus
US4610755A (en) * 1985-04-16 1986-09-09 Beckett Donald E Demetallizing method
EP0413819A1 (fr) * 1988-09-30 1991-02-27 Nissha Printing Co., Ltd. Materiau de transfert pourvu d'un motif de brillant metallique et procede de production
WO2000066653A1 (fr) * 1999-04-30 2000-11-09 E.I. Du Pont De Nemours And Company Feuille composite
WO2002044439A1 (fr) * 2000-11-29 2002-06-06 Mipa S.P.A. Procede de preparation de films plastiques imprimes et partiellement metallises

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160221037A1 (en) * 2013-10-30 2016-08-04 San Diego Gas & Electric Company Nonconductive films for lighter than air balloons
US20160221035A1 (en) * 2013-10-30 2016-08-04 San Diego Gas & Electric Company Nonconductive films for lighter than air balloons
US10434540B2 (en) * 2013-10-30 2019-10-08 San Diego Gas & Electric company c/o Sempra Energy Nonconductive films for lighter than air balloons
US10576497B2 (en) * 2013-10-30 2020-03-03 San Diego Gas & Electrical Company Nonconductive films for lighter than air balloons
US11738537B2 (en) 2013-10-30 2023-08-29 San Diego Gas & Electric Company, c/o Sempra Energy Nonconductive films for lighter than air balloons
US11806745B2 (en) 2013-10-30 2023-11-07 San Diego Gas & Electric Company Nonconductive films for lighter than air balloons

Also Published As

Publication number Publication date
EP1509406A1 (fr) 2005-03-02
AU2003242582A1 (en) 2003-12-12
ITMI20021150A0 (it) 2002-05-28
ITMI20021150A1 (it) 2003-11-28

Similar Documents

Publication Publication Date Title
DE69700672T2 (de) Etikett mit einer metallischen Schicht kontrollierter Dicke
US3809568A (en) Decorative plastic finish
JP2002523606A (ja) 二つの異なる色の間でカラーシフトを示す光学的可変性顔料、その顔料を含む被覆用組成物、その顔料を製造する方法およびその被覆用組成物で被覆された基材
JP2000506793A (ja) 容器に除去可能な印刷マークを施す方法
CN102975461B (zh) 一种新型环保真空反光材料纸张的制作方法
EP0996663B1 (fr) Films polyester composites a proprietes barriere
JP2024519798A (ja) リサイクル可能な容器用のリサイクル可能な熱収縮フィルム
WO2003099586A1 (fr) Procede pour preparer des films plastiques partiellement metallises et imprimes
US20040076761A1 (en) Process for the preparation of printed and partially metalized plastic films
JP5482100B2 (ja) 金属缶用印刷フィルム、その製造方法及び製造装置
CN216761313U (zh) 一种烫金膜
MX2008014131A (es) Metodo de recubrimiento de etiquetas en recipientes.
WO2016156408A2 (fr) Encre métallique pour l'impression
WO2017066779A1 (fr) Revêtements métalliques et coextrusions
JP2017094501A (ja) 遮光性積層体
JPH0327999A (ja) 転写材料の製造方法
JPH0326540A (ja) 絶縁性金属薄膜を部分的に有する基材及び絶縁性金属薄膜を部分的に付与する方法
EP3393786B1 (fr) Substrats métallisés
JPH0313080B2 (fr)
JP3521788B2 (ja) ラベル
JP3114511B2 (ja) 包装用積層体
JP2022176512A (ja) 遮光性積層体
FR2643641A1 (fr) Procede pour former un film de copolymere ethylene-acetate de vinyle hydrolyse
KR20240149409A (ko) 포장재 및 그 생산 방법
JP2024084138A (ja) 転写フィルム、転写フィルムの製造方法および転写フィルムのリサイクル方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003755141

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003755141

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2003755141

Country of ref document: EP