Briefly summarize the production and characteristics of magnetic printing

Briefly summarize the production and characteristics of magnetic printing

What is Magnetic Printing? I believe that it is an unfamiliar term for the masses. In fact, magnetic printing has many lofty functions, the most basic, can enhance the style of the print, giving people a feeling of high quality. It is also important to note that magnetic printing has a very high anti-counterfeiting function! Next, Biyin Bazaar is ready to briefly summarize magnetic printing, let's explore magnetic printing together. Magnetic printing is a method of printing using magnetic ink mixed with iron oxide powder. Magnetic printing is a unique recording medium produced by the combination of recording technology and printing technology, which is characterized by the fact that data can be written and read on magnetic cards, and words, patterns and photos can be seen visually. Magnetic printing is a printing layer that is coated with a magnetic layer on a paper or plastic sheet base, printed with words or patterns on other parts, and a printing layer that is used to display visual information corresponding to the usage status, and is molded. The sheet base of magnetic printing is required to have moderate toughness, uniform thickness, smooth surface, not easy to expand or curl when temperature and humidity change, good water and corrosion resistance, good printing and processing adaptability, and low price. Commonly used materials include offset paper, coated paper, impregnated resin paper and plastic sheet bases such as polyvinyl chloride (PVC), polyethylene terephthalate (PET) and their composite materials, with a thickness of 150~800 microns. The requirements for magnetic particles are large magnetic saturation, uniform particle size, good dispersion, stability and long aging. Commonly used are magnetite, iron monoxide with diamond iron attached. Magnetic inks are composed of magnetic powder pigments, binders, desiccant, antioxidants, wetting agents, and other additives. Carbon black is added to the black ink, and other color pigments are added to the color ink to obtain the color. Magnetic printing uses silk screen printing or offset printing methods to obtain a ribbon or graphic magnetic layer, which can form a tape in the necessary places of the card, thereby reducing the cost, and the content of magnetic pigments in magnetic inks, the magnetism of color and the thickness of the ink film layer after printing affect magnetism. After printing, the magnetic print is laminated with transparent PVC sheets on both sides, pressed with a hot press, and die-cut according to the specified size. In order to prevent forgery and tampering, magnetic printing has become more and more secure and confidential, so special materials or technologies are used in magnetic materials, printing, and processing methods. For example, special plate-making technology and inks are used in printing, including fluorescent inks, thermal color-changing inks, and infrared inks for printing, as well as ground pattern printing, miniature printing, rainbow holography and other measures to prevent counterfeiting.