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Cold foil takes the idea of hot foil stamping and makes it more convenient and cost-effective. The cold foil functions like an additional ink and is actually a UV-curable, very fast lamination adhesive and can be bonded in-line in a single run using a printing plate for either flexographic web printing or offset sheet-fed printing.
Adhesive is usually coated on a polypropylene or polyester film. Commonly 48 mm (1.9 in) or 72 mm (2.8 in) wide. Double-sided tape This tape has adhesive on both sides, and is used to stick two surfaces together. Duct tape Usually gray in color, this tape is backed with scrim, often coated with rubber or plastic. [1] Elastic therapeutic tape
Cold stamping, also known as press working, [1] is a manufacturing operation in which thermoplastics in sheet form are cold-formed using methods similar to those used in metalworking. [2] A precut thermoplastic sheet, possibly reinforced, is softened by heating to a temperature particular to the plastic in use.
Cold laminating processes are also used outside of the print industry, for example, coating sheet glass or stainless steel with protective films. Cold roll laminators are also used for laying down adhesive films in the sign-making industry, for example mounting a large print onto a board.
Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).
The aluminum foil allows the flame to stay even and continuously radiate heat, as well as retain heat to help melt the leftover wax. Ellie Martin Cliffe, executive editor at our sister site, Taste ...