[Chinese Packaging Network News] The so-called hot stamping process, in essence, is the transfer, is a kind of pattern on the top of the aluminum through the role of heat and pressure transferred to the substrate above the process. The plate is continuously heated up with the attached electrothermal plate. When it reaches a certain degree, imprinting is performed across the electro-aluminum film and the paper, and the adhesive layer, metallic aluminum layer, and color layer attached to the polyester film are applied by the effect of temperature and pressure. Transfer to paper.
As the market competition becomes more and more fierce, in order to more effectively carry out package anti-counterfeiting and increase the added value of products, the hot stamping process has been applied more and more in cartons. Ordinary hot stamping, cold stamping, embossing hot stamping and holographic hot stamping are the basic methods of hot stamping technology.
1, ordinary hot stamping. Commonly used common hot stamping processes include flat stamping and hot stamping, and round stamping and stamping, because the stamping is a line contact. With hot stamping substrate factory pan, suitable for large-area hot stamping, high precision hot stamping, application is more extensive.
2, cold stamping. Cold stamping does not require the use of a heated metal plate, but uses a method of printing adhesives to transfer the metal foil. The cold stamping process has low cost, energy saving and high production efficiency, and is a promising new process.
3, bump hot stamping. Convex stamping, also known as three-dimensional hot stamping, is the use of modern engraving technology to make up and down with the negative and positive mold, hot stamping and embossing process once completed, improving production efficiency. The mold produced by electro-engraving can be curved to achieve a three-dimensional embossing effect that can hardly be achieved by a mold produced by a general etching method. The emergence of embossing and hot stamping enables the hot stamping and embossing process to be completed at the same time, reducing the number of waste products that are generated due to process inaccuracy and overprinting.
4, holographic hot stamping. The holographic logo uses computer technology to change the amplitude and frequency of the raster so that the effect is more brilliant and clearer than the color of the calculated pattern. If such a hologram is used as a copy of the original, a large number of holograms will be lost, thereby achieving the purpose of anti-counterfeiting. Holographic identification not only can have a very good anti-counterfeiting performance, but also can be a special number or text in the holographic identity according to customer needs, the application of high-grade carton packaging is more and more widely.
Of course, in the actual production, we must choose and appropriate hot stamping methods according to the actual situation so as to achieve the best carton packaging effect.