Counting colorful post-printing stamping processes (1)

In the hot stamping process can be divided into the first hot after printing and printing after the first two kinds of hot, most hot stamping is the first hot after the printing, such as ordinary gold, laser gold hot stamping and holographic hot stamping. Widely used in the hot stamping of gold cards, silver cards, laser cards and glass cards, has been widely used in Western countries.

Holographic positioning bronzing adopts corresponding anti-counterfeiting patterns, has security and anti-counterfeiting features, and has reached a consensus in the world. Use holographic positioning probes for precise control of anodized aluminum. Bronzing high quality. Because it is difficult to manufacture holographic aluminum, the number of workers is small and the process is complex, so it is difficult to copy, and the cost is high. It is often favored in the security of high-grade cigarette cases, large cheques, retail gift certificates, identity cards and coins. , If used on the front page of a passport, the anti-counterfeiting is carried out by using the above-identified complex pattern as a distinguishing mark.

Most bronzing are also directly stamped on printed materials, but also on the surface of UV Varnish and foil stamping on the adhesive film material. The process of bronzing on the surface of UV varnish has a very high requirement for the UV varnish and bronzing of the galvanized aluminum. When bronzing, it is necessary to ensure that the two are closely attached and have good bronzing applicability. The bronzing on the adhesive material is further divided into direct bronzing on the film and bronzing on the surface of the ink layer. This process is to prevent the ink layer or gold foil from being detached and the bronzing is not implemented, so the surface of the film should be pretreated to ensure Bronzing quality.

The first hot stamping is the new idea of ​​the printing industry and the smoke label design. The first hot stamping is the first to stamp the silver foil on the white card paper, and then print the graphic on the surface of the hot stamping silver foil, which is a large area of ​​hot Indian technology. This processing method usually uses a round or flat round hot stamping machine. When the hot stamping, the pressure is the line contact method. In the large area hot stamping, unlike the flat stamping hot stamping, bubbles appear, and the hot stamping surface is very smooth. At the same time, full-size stamping does not increase the load on the machine.

Electro-aluminum foil stamping process principle

Aluminium hot stamping is a very important post-printing process in packaging and printing. It is mainly a hot stamping pattern. Text. Lines to highlight the product's name, trademark. Ang licensing, landscaping products, thereby improving the quality of packaging products. Electro-aluminum hot stamping is also often used in the post-press processing of hardcover book covers, greeting cards, calendars and other products.

The hot stamping process of anodized aluminum is as follows: the hot stamping plate heats the anodized aluminum, the peeling layer melts, and then the adhesive layer also melts, the adhesive layer adheres to the substrate at the time of imprinting, and the colored layer is separated from the base layer of the polyester sheet. Layers and colored layers remain on the substrate.

The stamping of electro-aluminum on the packaging can not only play a role in beautifying the product and improving the grade of the product, but also play a certain anti-counterfeiting effect.

Stamping after printing

One of the purposes of increasing the hot stamping process is to improve the product quality. However, in practical applications, only reasonable use can play a multiplier role. Conversely, not only does it fail to show the advantages of the product, but it also causes waste. The following points should be taken into account when using the electro-aluminum hot stamping process.

1. Product Design Considerations

1 should fully consider the hot stamping parts, that is, the matching of the color and the printing color of the hot stamping characters or patterns, and the effect of the hot stamping process on the hot stamping.

2 Consider the overall effect of hot stamping and the cost of hot stamping. For example, some products often only hot stamp the outline and text of the pattern, and do not directly stamp the pattern to achieve the effect of point lining; for certain aluminum-plated paper cigarette packs, the printing design can be achieved by first printing the transparent yellow and pressing the bumps. Replace hot stamping to reduce costs.

3 Hot stamping on a large area should also take into account the hot stamping site and the printing pattern of the paper, which need to be based on product overlay accuracy, generally set to 0.2-0.5mm. Of course, it is necessary to take into consideration the stamping adaptability of the aluminum foil itself.