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WO2007017896A2 - Stratifies a effet de barriere eleve revetus de vernis - Google Patents

Stratifies a effet de barriere eleve revetus de vernis Download PDF

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Publication number
WO2007017896A2
WO2007017896A2 PCT/IN2006/000166 IN2006000166W WO2007017896A2 WO 2007017896 A2 WO2007017896 A2 WO 2007017896A2 IN 2006000166 W IN2006000166 W IN 2006000166W WO 2007017896 A2 WO2007017896 A2 WO 2007017896A2
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WO
WIPO (PCT)
Prior art keywords
lacquer
coating
ply
laminate
film
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.)
Ceased
Application number
PCT/IN2006/000166
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English (en)
Other versions
WO2007017896A3 (fr
Inventor
Bhardia Rahul Gopikisan
Tilak Ammanabrolu Balgangadhar
Naik Praful Ramchandra
Jyoti Dr. Baliga
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Individual
Original Assignee
Individual
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Filing date
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Application filed by Individual filed Critical Individual
Publication of WO2007017896A2 publication Critical patent/WO2007017896A2/fr
Publication of WO2007017896A3 publication Critical patent/WO2007017896A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/042—Directing or stopping the fluid to be coated with air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/04—Laminate
    • 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
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers

Definitions

  • Lacquer coated high-barrier laminates Lacquer coated high-barrier laminates.
  • This invention relates to laminates.
  • This invention envisages color lacquer coated four ply high-barrier laminates and processes for Lacquer coating.
  • Metallic substrates are covered with lacquers for protection against rust and other chemical as well as physical influences.
  • the coating which may have one or several lacquer layers and further layers, if necessary, it is intended to protect the metallic substrate against these influences, and to reduce and/or slow down the effect of these influences on the coated metallic substrate.
  • Foods have been packaged not only by using rigid containers made up of metals, glasses and plastic materials but also by using flexible materials.
  • Flexible packaging has an advantage in that it is lightweight and that the packaging container after used can be easily disposed of.
  • the flexible packaging When used in the form of a laminate by adhering a variety of flexible films, the flexible packaging, despite of its thin film-like or sheet-like form, exhibits a variety of functions to a sufficient degree such as excellent gas barrier property, sealing reliability, strength and heat-sealability.
  • a metal foil or a gas-barrier resin that imparts gas-barrier property against oxygen and the like, an olefin resin for imparting heat- sealability, and a biaxially oriented polyester film or a nylon film for imparting mechanical strength.
  • Industrial lacquer coating is distinguished by efforts to optimise lacquering processes in terms of environmental friendliness and energy consumption.
  • Ways of moving towards this objective are, for example, the use of powder coating systems and economising on energy-intensive processing stages, such as for example reducing the number of baking stages. It is customary in this connection, in order not to expose the lower lacquer layers to excessive temperatures, when baking the individual layers for the baking temperatures of subsequent layers to be less than those of the preceding layers.
  • United States Patent 5507928 discloses a process for the production of a multi-layer lacquer coating by dry-on-wet application of a powder coating composition onto a substantially uncrosslinked, previously electrophoretically deposited lacquer layer, followed by the joint baking of these lacquer layers.
  • the object of the invention was thus to provide a process for the production of a multi-layer lacquer coating with application of a powder coating composition onto an electrocoated lacquer layer, which process gives rise to non-yellowing coatings with good interlayer adhesion and good mechanical properties, such as good resilience, good stone impact resistance and impact resistance and a good, defect-free surface structure. It should furthermore be possible to perform the process with powder coating compositions having binders, which are simple to produce, or are commercially available. However this process is not suitable for application to laminates or plastic films and more suitable for articles with hard surfaces.
  • microcapsules are added to one and/or a plurality of layers, which are filled in part by inhibitors, and in another part with moisture-hardening isocyanates and/or polymers reactive to radiation and/or oxygen. If the coating according to this invention is at least partially damaged, the microcapsules release the substances in them. The release may occur by the microcapsules positioned in the region of the damaged location bursting open or tearing open. The substances sourced in the microcapsules, and issuing from them, cover the damaged location.
  • the polymer hardens by reacting to moisture or radiation, as the case may be, and thereby additionally inhibits access of corrosion fostering media, whereby the progress of corrosion is at least delayed. This process is good for laminating on small parts e.g. automobile body but is expensive for use in packaging laminates.
  • United States Patent 5527616 have discovered that when an isocyanate- terminated polyurethane which is in a solid or semi-solid form at normal temperature is selectively used as a hot-melt adhesive agent, there is obtained an initial adhesive strength which is excellent to such a degree as to prevent the occurrence of tunneling even when the laminate is wound or unwound, and that the adhesive agent is sufficiently cured with the moisture in the air or substrates, making finally it possible to obtain interlayer adhesiveness which sufficiently withstands even the retort sterilization.
  • United States Patent 4642249 discloses a lacquer based upon polyvinylidene fluoride (PVDF), as well as with a process for coating metallic surfaces with this lacquer. Attempts have been made to improve the adhesive strength and the film formation of the PVDF by the formation of copolymers. Therefore, this patent provide a clear lacquer based upon polyvinylidene fluoride which, even without the help of a primer, makes possible a satisfactory adhesive strength on metallic surfaces and, at the same time, displays the valuable properties of the PVDF.
  • the coating of metal surfaces with the clear lacquer according to this patent can take place by the usual methods of application, such as painting, spraying or the like.
  • the clear lacquer is stoved at a temperature of from 250 degree C to 350 degree C. C and preferably at a temperature of from 280 degree C to 320 degree C. C. Depending upon the temperature used, the stoving time is from 1 to 10 minutes and especially from 3 to 5 minutes.
  • the clear lacquer according to this patent can be used for coating all metal surfaces and is especially suitable for coating steel, copper and aluminium but is not suitable for packaging film laminates due to high temperatures in staving.
  • the present invention substantially obviates one or more of the problems encountered due to limitations and disadvantages of the prior art.
  • the lacquer coatings are essentially based on resins, additives, pigments, fillers, and solvents or diluents to adjust the viscosity for convenient application.
  • Lacquer coating resins can be divided into 5 main groups:
  • the object of the invention is to provide laminates.
  • Another object of the invention is to provide color lacquer coated four ply high-barrier laminates.
  • Another object of the invention is to provide four ply high-barrier laminate structure consisting of 4 layers namely: a) Rigid Polyvinyl Chloride (PVC) Film, b) Aluminium Foil, c) Bi-axially Oriented Nylon Film and d) Lacquer.
  • PVC Polyvinyl Chloride
  • Yet another object of the invention is to provide processes for lacquer coating on Laminates.
  • Yet another object of the invention is to provide laminates with thickness range between 10 to 2000 microns.
  • Further object of the invention is to provide color lacquer coating with thickness range between 0.50 to 50 gsm.
  • Yet another object of the invention is to provide laminates with color range of All Standard Colours in different shades.
  • a four ply colored lacquer coated high-barrier laminate comprising a core layer of aluminium with the thickness of 4 to 100 microns, a Rigid Polyvinyl Chloride (PVC) Film with the thickness of 3 to 1990 microns on the inner side of the aluminium layer, a bi-axially oriented nylon film with thickness of 3 to 200 microns applied on outer side of the Aluminum core and a lacquer coating with thickness of 0.50 to 50.0 gsm applied on the nylon side of the laminate.
  • PVC Polyvinyl Chloride
  • the total thickness of said laminate is in the range of 10 to 2000 microns.
  • the color of the lacquer is in the color range of all standard colours in different shades.
  • the lacquer coating contains a plurality of lacquers of different colours.
  • the lacquer coating is selected from a group of lacquers consisting of polyurethanes, acid-curing alkyd/UF, acid-curing alkyd /NC lacquers, waterborne acrylic dispersion-type lacquers, UV-curable formulations and unsaturated polyesters (peroxide cured).
  • a process of making a four ply colored lacquer coated high-barrier laminate as claimed in claim 1 comprising the steps of; providing a 3-ply laminate consisting of a core layer of aluminium with Rigid Polyvinyl Chloride (PVC) Film on one surface and bi-axially oriented nylon film on other surface of Aluminum made by any one of the process selected from a group of processes consisting of coextrusion, hot lamination, cold lamination, dry lamination, solvent based lamination, solvent-less lamination, water based adhesive lamination, and extrusion coating; eliminating static charge from the nylon surface by passing through a first static eliminator; applying lacquer on the nylon surface by any one of the methods of coating selected from a group of methods consisting of Air- Knife coating process, Knife-Over-Roll coating process, Reverse- Roll coating process and Gravure coating process; drying the lacquer coated laminate by passing through a heating chamber maintained between 55 to 65 0 C; eliminating static charge from the
  • the coating is done at a line speed of 50 meter/minute.
  • a polyester film backing is provided on the PVC surface side to carry excess lacquer.
  • the lacquer is applied by an Air Knife coating process comprising the steps of applying the lacquer by means of an air knife, levelling the lacquer applied and removing the excess liquid by means of infrared heaters and hot air to form a continuous lacquer film of uniform thickness on the nylon surface of laminate.
  • the lacquer is applied by a Knife-Over-Roll coating process comprising the steps of applying the lacquer by means of Knife-Over-Roll casting apparatus, removing the excess liquid by means of infrared heaters and hot air to form a continuous lacquer film of uniform thickness on the nylon surface of laminate.
  • the lacquer is applied by Reverse-Roll coating process comprising the steps of applying the lacquer by means of Reverse-Roll coating apparatus, removing the excess liquid by means of infrared heaters and hot air to form a continuous lacquer film of uniform thickness on the nylon surface of laminate.
  • the lacquer is applied by Gravure coating process comprising the steps of applying the lacquer by means of Gravure coating apparatus, removing the excess liquid by means of infrared heaters and hot air to form a continuous lacquer film of uniform thickness on the nylon surface of laminate, laminate.
  • Figure 1 is a Process Flow Chart of Color Lacquer Coating and is self explanatory.
  • Figure 2 is a drawing showing the Air Knife Coating Process including base web 3 passes over diofan coated roller 4 and carries the coating with itself, further base web passing over second roller is treated with air knife
  • Figure 3 is a drawing showing how a typical air knife coating Plant looks.
  • the film to be coated is unwound from roll 5, passes thru corona 6 before primer application system 7, drying the primer in tunnel 8 the film is chilled on chill roll 9, passed thru latex application system 10 before going under infra red lamps 11 and goes in latex drying tunnels 12, finally is cooled with chill rolls 13 and rewound on roll 14.
  • Figure 4 is a drawing showing the Knife Over Roll Coating process wherein film to be coated is passed between backing roll 17 and coating knife 15 and the coating liquid 16 applied at the edge of coating knife 15.
  • Figure 5 is a drawing showing the Reverse Roll Coating process wherein lacquer to be coated is held in end dame 21 and is carried on metering roll
  • Figure 6 is a drawing showing the Gravure Coating process wherein the the coating substance from a container is carried on a engraved roll 27, the amount of coating is doctored by doctor blade 24 which is then applied on the film running between rubber backing roll 25 and engraved roll 27 and is further smoothed with smoothing roll 26.
  • the principle of air knife coating process of laminates with coating liquids is simple.
  • the coating is applied by means of an air knife coater in a continuous process, the excess is 'blown off' by a powerful jet from the air knife and then the coating is leveled out.
  • Liquid in freshly applied coating is removed by means of infrared heaters and hot air in order to form a continuous polymer film on the surface of the laminate. This procedure is typically used for aqueous coatings and is particularly noisy.
  • This process relies on a coating being applied to the substrate, which then passes through a 'gap' between a 'knife' and a support roller.
  • the Lacquer is applied to the roller and the thickness of the Lacquer on the roller is controlled by the position of a knife that scrapes off the excess.
  • the roller then applies the Lacquer to a laminate.
  • the Laminate passes through an oven that causes the Lacquer to dry.
  • This process can be used for high viscosity coatings and very high coat weights. There are innumerable variants of the relatively simple process, which is rugged and hard working.
  • the liquid composition is applied to the receiving surface by means of a roll, which is rotated in a direction opposite to, that in which the receiving surface is moved.
  • the reverse roll coater typically employs at least two rolls, one of which is an applicator roll, that is, the roll which carries and applies the liquid composition to the receiving surface.
  • the other roll is termed the metering roll and is positioned relative to the applicator roll in a manner such that a space is provided between the two rolls to permit the liquid composition to flow therethrough at a desired rate.
  • the metering roll rotates in a direction opposite the direction of the applicator roll.
  • the liquid composition is fed to the nip between the metering roll and applicator roll in a manner such that a pool of the liquid composition builds up in the nip.
  • the applicator roll carries composition from the pool to the receiving surface.
  • the applicator and metering rolls are typically made from elastomeric materials such as synthetic rubbers.
  • Coating thickness tolerance is maintained regardless of substrate thickness or gauge variation.
  • plastisols or dispersions For application of medium to high viscosity solvent or water-based coatings, plastisols or dispersions.
  • the lower limit of coating weights is in the range of 3 to 4 lbs/ream.
  • a web is considered to be any material in laminar form capable of being fed from a roll or other source of supply, subjected to a processing treatment, and subsequently rewound in roll-form, or cut into sheets or otherwise converted for use by a consumer.
  • Typical webs include paper, and plastic films.
  • coating is used throughout this specification to describe both the process of depositing a liquid or flowable material, including printing inks, in a controlled manner on to a surface of a moving web, and the layer of material so deposited on that surface either in the wet state or in a subsequently dried condition.
  • Coating of a web is commonly achieved by means of a gravure coater which utilizes a rotating roll having on the surface thereof a knurled or engraved pattern of depressions or cells which pick up coating material from an appropriately positioned receptacle, and deposit the coating material on a surface of a web moving in contact with the surface of the gravure roll.
  • a gravure coater which utilizes a rotating roll having on the surface thereof a knurled or engraved pattern of depressions or cells which pick up coating material from an appropriately positioned receptacle, and deposit the coating material on a surface of a web moving in contact with the surface of the gravure roll.
  • the coating material picked up on the cellular surface of the gravure roll may first be transferred to the resilient surface of a cooperating transfer roll, and thence to the surface of the web, this technique being commonly described as indirect, or off-set, gravure coating.
  • An auxiliary smoothing roll can assist in flow-out.
  • Color lacquer coating consists of applying colored lacquer in liquid form onto the metallised PVC film using a gravure roll coating process and subsequently drying the film to remove the liquids present in the coating formulation. These colored lacquers are formulated in complete range of colors.
  • Process flow for preparation of color lacquer coating on four ply laminates in accordance with this invention comprises following steps.
  • the jumbo roll of 3-ply laminate is unwound.
  • the roll of 3-ply laminate is rewound with polyester film as a connecting threading material on PVC side.
  • the rewound roll is then run on the unwinder at a line speed of 50 meter/minute.
  • 3-ply laminate passes through the first static eliminator, which removes static charge developed during the passage and improves coating efficiency.
  • a controlled application of lacquer of specified color in liquid form is applied onto the 3-ply laminate surface on nylon side; using at least one of the methods of coating selected from a group of methods consisting of Air-Knife coating process, Knife-Over-Roll coating process, Reverse-Roll coating process and Gravure coating process.
  • Coated four ply laminate passes through a heating chamber (6O 0 C) to undergo the drying process.
  • the color lacquer coated four ply laminate passes through the second static eliminator.
  • the coated laminate passes over chill rolls and thus is cooled.
  • the colored lacquer coated four ply laminate is rewound on the rewinder.
  • a 3-ply laminate film is used that is preferably 150 ⁇ m thick and on which a Lacquer layer consisting of Gold colored lacquer in liquid form applied by Air-Knife process. Coated four ply laminate passes through a heating , chamber at 60 0 C and undergoes the drying process and then passes through the second static eliminator. The coated laminate passes over chill rolls and thus is cooled and rewound on the rewinder. Final finished product is tested for following properties:
  • a 3-ply laminate film is used that is preferably 110 ⁇ m thick and on which a Lacquer layer consisting of Peach colored lacquer in liquid form applied by Knife-Over-Roll process. Coated four ply laminate passes through a heating chamber at 60 0 C and undergoes the drying process and then passes through the second static eliminator. The coated laminate passes over chill rolls and thus is cooled and rewound on the rewinder. Final finished product is tested for following properties:
  • a 3-ply laminate film is used that is preferably 175 ⁇ m thick and on which a lacquer layer consisting of Green colored lacquer in liquid form applied by Reverse-Roll coating process. Coated four ply laminate passes through a heating chamber at 60 0 C and undergoes the drying process and then passes through the second static eliminator. The coated laminate passes over chill rolls and thus is cooled and rewound on the rewinder. Final finished product is tested for following properties:
  • a 3-ply laminate film is used that is preferably 200 ⁇ m thick and on which a Lacquer layer consisting of Blue colored lacquer in liquid form applied by Gravure coating process. Coated four ply laminate passes through a heating chamber at 60 0 C and undergoes the drying process and then passes through the second static eliminator. The coated laminate passes over chill rolls and thus is cooled and rewound on the rewinder. Final finished product is tested for following properties:

Landscapes

  • Laminated Bodies (AREA)

Abstract

La présente invention a trait à des stratifiés à effet de barrière élevée de quatre couches revêtus de vernis coloré présentant une structure constituée de quatre couches notamment de pellicule rigide de polychlorure de vinyle, de feuille d'aluminium, de film de nylon d'orientation biaxiale, et de revêtement de vernis coloré.
PCT/IN2006/000166 2005-07-11 2006-05-17 Stratifies a effet de barriere eleve revetus de vernis Ceased WO2007017896A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN825/MUM/2005 2005-07-11
IN825MU2005 2005-07-11

Publications (2)

Publication Number Publication Date
WO2007017896A2 true WO2007017896A2 (fr) 2007-02-15
WO2007017896A3 WO2007017896A3 (fr) 2007-06-07

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PCT/IN2006/000166 Ceased WO2007017896A2 (fr) 2005-07-11 2006-05-17 Stratifies a effet de barriere eleve revetus de vernis

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AR (1) AR059943A1 (fr)
SG (1) SG129380A1 (fr)
TW (1) TW200711833A (fr)
WO (1) WO2007017896A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9073287B2 (en) 2008-12-15 2015-07-07 Industrial Technology Research Insititute Organic/inorganic multi-layered gas barrier film

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Publication number Priority date Publication date Assignee Title
JP2000042470A (ja) * 1998-07-31 2000-02-15 Teijin Ltd プラスチックフィルムの製造方法及びその装置
US6270869B1 (en) * 1998-12-02 2001-08-07 Alusuisse Technology & Management Ltd. Cold formable laminate films
EP1086800A1 (fr) * 1999-09-21 2001-03-28 Alusuisse Technology & Management AG Procédé de production de produits pour emballages
EP1488921A1 (fr) * 2003-06-17 2004-12-22 Alcan Technology & Management Ltd. Laminé déformable à froid

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SG129380A1 (en) 2007-02-26
TW200711833A (en) 2007-04-01
AR059943A1 (es) 2008-05-14

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