Printers always hope that they can keep up with the printing needs of commodities as soon as possible and further expand their business scope; while customers need their own product packaging to stand out from the daily media promotion and information flow to give commodity buyers a kind of publicity Different feelings, this is one of the reasons for the continuous improvement of the status of post-press processing procedures in the printing process. More and more printers are working on post-press processing, such as glazing, hot stamping metal foil, 3D and hologram effects, embossing and die-cutting processes. Drupa 2004 will showcase a new surface finishing technology-a new die-cutting technology that enables printed materials to achieve a three-dimensional effect.
Many printers use obsolete relief plates or cylinders to achieve embossing, punching, or die cutting in very modern workshops, but many manufacturers have already adopted online processing. Sometimes the die-cutting method is combined with other post-press processes to obtain more personalized effects, such as metallic luster and pearlescent effect, or local glazing effect, etc. At the same time, the extended effect of cutting out part of the outline can also be used for consumers Impressed.
In the decoration of books and periodicals, the cut part will be used as the display window of the picture, and it will also receive a very strange effect. Readers will open this page to explore more charming things behind the window. You can also create suspense by using multi-layer folding to arouse readers' curiosity. This method can better highlight the theme of books and periodicals. In addition, the decoration around the window is also one of the highlights. Pasting the transparent film can make the die-cut part look like a complete glass window. This die-cutting method is suitable for many materials, such as paper, cardboard, corrugated cardboard, film and other plastics, cork, aluminum foil and fabrics.
Generally speaking, die cutting has high technical requirements, not only to provide customers with high-quality products, but also to provide customers with high-level technical support and information services. The key to ensuring quality lies in the correct matching of printing and die-cutting equipment. In the past, die cutting was often performed after printing, but it took too long, so more and more customers demanded die cutting while printing, that is, online die cutting, but this requires many improvements to the die cutting equipment.
Platform or rotary die cutting
There are online and offline die cutting methods. For short-run jobs, the existing round flat die-cutting machine is sufficient, but for large-volume repetitive jobs, the automatic die-cutting machine is an ideal choice. The most common die-cutting machines are platform type and rotary type. The flat die-cutting machine adopts flat die-cutting method, and the rotary die-cutting machine adopts round die-cutting method. Large die cutting machines are often equipped with pneumatic bottom rollers and hydraulic knife rollers, which can reduce the elongation of the material in the die cutting operation. Many manufacturers do not want to purchase a die-cutting machine separately, and online die-cutting can also be realized on a sheet-fed offset press. The die-cut plate is fixed on the rubber cylinder, and the bottom plate can be installed on the impression cylinder with a protective layer. Earlier this year, Heidelberg introduced an online die-cutting unit designed for single A3 format. This unit can be placed behind the last printing unit, and the die-cut plate is fixed with a magnet roller. In production, the operator can complete the overprint adjustment of the cylinder in the lateral, circumferential and diagonal directions through the computer. The die-cut version is manufactured by the manufacturer based on the data or film provided by the customer, and can be reused. This online die-cutting unit can also be converted into a glazing unit, that is, it can undertake new tasks through simple transformation.
In addition to mechanical die cutting, laser die cutting technology has also been promoted and applied in recent years. Laser die cutting is particularly suitable for post-press processing of small-format jobs, such as greeting cards and other products. Laser die cutting can even cut the surface layer of cardboard with a certain thickness to create a relief effect.
Printers expect a simple-to-use printing machine that combines printing, folding, creasing, punching, and even embossing. Manroland also has a similar news system. In short, all these various die-cutting processes have improved the quality of printed matter, and also provided a new direction and opportunity for the future printing and media industries.
Baking Pans,Round Baking Pan,Steel Pizza Pan,Non-Stick Pizza Pan
vchomy , https://www.vichenivchomy.com