Summary of the technical essentials of color box hot stamping（一）

Summary of the technical essentials of color box hot stamping

Hot stamping process of color box

The color box adopts the hot stamping process for two purposes. One is to use it to increase the added value of the packaged products, and the other is to give the packaged products higher anti-counterfeiting properties. At the same time, hot stamping can express the individuality of product packaging and is safe and environmentally friendly. .

The hot stamping process of color box products involves all aspects of production. As long as we pay attention to the quality control and control from the layout design and the whole production process, not only can we effectively avoid quality problems, but also better ensure the hot stamping of color box products. Printing quality to meet customers' quality requirements for paper packaging products.

1. Understanding of hot stamping process and rational design of layout

Hot stamping a layer of colored foil film on the printed matter, also known as anodized aluminum process. In the post-press finishing process, the most widely used anodized aluminum process is hot stamping gold foil, followed by hot stamping silver foil. With the diversification and personalization of market commodities, the colors of anodized aluminum are also varied. Now, in addition to the common gold, silver, and copper colors, there are blue, green, yellow, orange, and other hot stamping colors of various products. Yellow, purple, brown, red, rose, white, gray, black and many other colors.

Almost all colors can now be hot stamped with the corresponding color of anodized aluminum. In addition, there are laser foils that can bloom with different color effects after hot stamping, which greatly expands the choice of colors. Since the printing area of color box products is generally relatively large, appropriately designing the area of hot stamping on the layout can play a role in highlighting the decorative effect of product packaging. Therefore, the rational design of the hot stamping layout and color of the color box products can not only effectively reduce the production cost, but also better take into account the quality effect of the product, so that the hot stamping part plays a good role in the finishing touch. Therefore, it is enough to design the product logo, product name, etc. of the important part of the color box as a hot stamping layout.

It is worth noting that the process design should be reminded that the color of the hot stamping foil should not be too close to the color of the backing paper and printing, otherwise the process effect of hot stamping cannot be highlighted. Only when the color of the hot stamping has a strong contrast with the bottom paper or the bottom color can the process effect of the hot stamping layout be better highlighted. For example, the background color of the color box is yellow. If gold is hot stamped on such a color, the colors of the two are similar, the hot stamping layout will not be eye-catching enough, and the elegant process of the anodized aluminum hot stamping picture will not be well highlighted. Effect. If silver, red or other anodized aluminum with a large contrast effect is hot stamped on the yellow background, the hot stamping layout will be more prominent, and the quality of the product will be greatly improved.

2. Pay attention to the control of printing process to prevent the disadvantages of hot stamping

The hot stamping layout of many color box products is hot stamped on the basis of the printing background color, so the quality of the printing ink color directly affects the hot stamping quality of the product. The ink used for the background color of the color box should be fine and dry to ensure that the ink layer is evenly coated and firmly attached. For hot stamping on the base color, try not to add excessive brighteners, diluents, detackifiers, desiccants, etc. During the hot stamping process, it is easy to tear off the ink layer and other quality defects.

For the printing of the background color layout, the thickness of the ink coating should not be too full, otherwise it is easy to produce hot stamping quality defects. If there is a design hot stamping layout on the background color of the spot color, it is best to adjust the hue of the background ink to be darker by implementing the "dark ink thin printing" process technology, so that the printing ink layer is relatively thinner, which can meet the printing hue. It can also make the printing ink layer easy to dry and firmly adhere to the cardboard or laser film, which is conducive to the realization of good hot stamping of anodized aluminum. In addition, it is also necessary to pay attention to selecting inks with good tinting strength and good temperature resistance for printing, and try not to use or use less powder during the printing process, and at the same time, the pressure used for printing should be slightly larger to avoid a large amount of ink coating. , It is easy to produce ink floating phenomenon, which affects the hot stamping quality of color box products.