Method and device for laminating layers of identification cards, or the like
AssigneeInterlock Corporation
InventorWerner Vogt
Life of this patent
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Abstract
For laminating layers consisting at least in part of thermoplastic films, in particular for producing identification cards, or the like, carrying information and/or data, a method is proposed where the blank, after having been introduced between pressing dies, is initially subjected to the pressure and heat required for complete lamination of the blank. Heat dissipation is prevented during heating by the fact that cooling components are kept at a predetermined distance from the heating surfaces. During a subsequent transition from heating to cooling, the heating effect is terminated and cooling bodies are brought into contact with the pressing and heating components, for reducing the temperature of the completely laminated product.
Claims10
Method for laminating layers consisting at least in part of thermoplastic films, for producing identification cards, check cards, identity cards, credit cards, or the like, carrying data, where an inserted blank is subjected to the action of pressure and heat by a pressing tool die arranged on at least one side and comprising heating and cooling means, wherein after insertion of the blank between the dies, the blank undergoes a heating phase in which the blank is subjected to the pressure and heat required for complete lamination of the blank, while heat dissipation is prevented by the fact that cooling components are kept at a predetermined distance from the pressing and heating components of the die or dies involved in the laminating step, whereafter the heating effect is switched off and the blank undergoes a cooling phase in which a cooling body is brought into contact with the assembly of pressing and heating components of a die involved in the laminating step whereby the temperature of the laminated product, which has been finished during the heating phase, is reduced to its proper removal temperature.
Method for laminating layers consisting at least in part of thermoplastic films, for producing identification cards, check cards, identity cards, credit cards, or the like, carrying data, where an inserted blank is subjected to the action of pressure and heat by a pressing tool die arranged on at least one side and comprising heating and cooling means, wherein after insertion of the blank between the dies, the blank undergoes a heating phase in which the blank is subjected to the pressure and heat required for complete lamination of the blank, a vacuum being produced in the space between the dies while the space is sealed from the outer atmosphere so that the assembly of pressing and heating components of a die involved in the laminating step are pressed against the blank by external air pressure in order to apply pressure and heat to the blank.
Method for laminating layers consisting at least in part of thermoplastic films, for producing identification cards, check cards, identity cards, credit cards, or the like, carrying data, where an inserted blank is subjected to the action of pressure and heat by a pressing tool die arranged on at least one side and comprising heating and cooling means, wherein after insertion of the blank between the dies, the assembly of pressing and heating components of a die is urged towards the blank so that the blank undergoes a heating phase in which the blank is subjected to the pressure and heat required for complete lamination of the blank, the heating effect being switched off and the blank thereafter undergoing a cooling phase in which a cooling body is urged towards the blank and into contact with the assembly of pressing and heating components, at least one of the assembly and the cooling body being urged towards the blank by directly applying positive air pressure, or positive air pressure and vacuum, thereto.
Dependencies are inferred from the claim text.