Cold foil stamping is a process where a layer of adhesive is applied onto the surface of the substrate using a specific printing method. The cold foil is then bonded under pressure, and after peeling, the aluminized layer of the cold foil transfers to the area where the adhesive was applied. This entire process is completed without the need for heat, distinguishing it from traditional hot stamping techniques. Pre-Printing Tips for Cold Foil Stamping When preparing for cold foil stamping, it's important to minimize the use of additives such as anti-blocking agents, dry oils, and powders in the ink. Avoid applying a glossy coating before the cold stamping process is complete. It's recommended to conduct small-scale trials before mass production to ensure the best results. Pay close attention to the compatibility between the cold stamping adhesive and the foil. Whether you're using a self-drying or UV adhesive, the coating amount should be higher than in standard offset printing. Choose a suitable cold foil that is a special aluminum foil without a heat-sensitive adhesive layer. Adjust the feeding speed and bonding pressure of the cold stamping equipment appropriately. Since the adhesion of cold stamping adhesive is weaker than that of hot melt adhesive, the stamped pattern may require a gloss coat for better visibility and durability. Important Considerations for First-Time Cold Foil Stamping Use a special cold foil designed for printing, and ensure the surface tension of the stamped area is above 30 mN/m. During printing, avoid ink smearing or loss of the aluminum layer on the cold foil. Be cautious with the ink formulation to prevent any damage to the delicate structure of the foil. Proper handling and precise application are essential for achieving a clean and sharp finish. In summary, achieving successful cold foil stamping requires more than just high-quality materials like specialized equipment, premium cold foils, and matching adhesives. It also demands the expertise and hands-on experience of skilled technicians and operators who understand the nuances of the process. With proper preparation and attention to detail, cold foil stamping can deliver stunning visual effects and enhance the overall appeal of printed products. 　 The above content is excerpted from the second edition of 2012, "Printing and Printing Technology," Packaging and Decoration, and more journal content, please pay attention to the journal channel. Make Up Spoon[USAGE]silver, gold, metal spatulas each, great for testing, mixing and applying lotion, cream, moisturizers, facial mask or other skincare products
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Sheet paper cold stamping process application notes
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