1. Introduction to Hot Stamping on Shopping Bags
Hot - stamping is a popular finishing technique used in the production of shopping bags. It is a process that adds a decorative and often luxurious metallic finish to the surface of the bag.
2. The Process of Hot Stamping
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Preparation:
- The shopping bag material needs to be prepared first. It should have a smooth and clean surface. Commonly used materials for shopping bags like paper, non - woven fabric, and some types of plastics can be hot - stamped. For example, kraft paper shopping bags are a good candidate for this process.
- The design to be hot stamped is usually prepared as a metal plate, called a die. The die has the pattern or text that will be transferred onto the bag. It is engraved or etched in a way that the raised parts of the die will carry the hot - stamping foil and transfer it to the bag.
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The actual hot stamping process:
- A hot stamping foil is used. This foil is a thin film that usually has a layer of metallic material (such as gold, silver, copper - colored material, etc.) sandwiched between a carrier film and a heat-activated adhesive layer.
- The die is heated to a specific temperature, usually between 100 - 200 degrees Celsius depending on the material of the bag and the foil used. When the heated die comes into contact with the foil and the shopping bag surface, the adhesive on the foil melts and bonds the metallic layer to the bag's surface, leaving behind the desired pattern or text.
- Pressure is also applied during this process to ensure a good transfer of the foil. The pressure can range from a few kilograms per square centimeter to more, depending on the complexity of the design and the material's thickness.
3. Advantages of Hot Stamping on Shopping Bags
- Aesthetic Appeal: It gives a high end and eye catching look. The metallic finish can make the shopping bag look more elegant and luxurious. For example, a simple paper shopping bag with a hot stamped logo in gold can instantly give a premium feel, making it more attractive to customers and suitable for high - end retail products.
- Durability: The hot - stamped design is relatively durable. The metallic layer adheres well to the bag surface and can withstand a reasonable amount of wear and tear. It won't easily fade or peel off like some printed inks, especially if high - quality foils and proper techniques are used.
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Versatility: A wide range of designs can be achieved. From simple logos and brand names to complex patterns such as floral designs, geometric shapes, and even detailed illustrations. This allows for creative customization to match different brand identities and marketing campaigns.
