The hottest IT technology promotes printing techno

It technology accelerates the digitization of printing technology

with the development of high technology and people's demand for high-quality packaging and printing products, the packaging and printing industry has carried out a large-scale technological revolution in recent years. The mutual use of a variety of printing equipment and the mutual penetration of a variety of printing processes have made printing products more unpredictable and colorful, setting up layers of obstacles for those who try to fake

1. Combination printing anti-counterfeiting

combination printing is to arbitrarily combine several different printing processing methods on a printing machine to meet the requirements of different customers. Practice has proved that combined printing can not only complement each other's advantages, but also create new printing effects and enhance the anti-counterfeiting effect. At present, silk printing is one of the key components of combination printing. It is mainly combined with flexography and lithography, and plays a role in anti-counterfeiting printing such as packaging and decoration

(1) flexographic printing and rotary silk printing. Silk printing with its printing ink layer thickness, ink layer can be adjusted at will and other advantages, can show a prominent effect. At present, the rotary wire printing unit with high printing accuracy, combined with the flexographic printing machine, makes it more widely used in anti-counterfeiting printing. To sum up, it mainly has the following remarkable characteristics:

① it enhances the attraction of the product. If the product needs to be more expressive, it can also adopt the air permeability effect design, and then use special inks such as heavy color or light to achieve the desired effect

② when printing suggestive signs for specific groups (such as the blind, etc.), this printing method can also achieve the desired effect

③ suitable for special printing with metal effects such as gold and silver 2 Replace hydraulic oil regularly (such as greeting cards, pictures, book covers, etc.)

④ it is suitable for delicate packaging and decoration printing, such as showing special effects such as embossing and sanding

⑤ large area of field and anti white characters can be printed

⑥ the anti-counterfeiting function of valuable tickets and high-end trademarks can also be improved by using light silk and warm silk inks

⑦ the combined printing method can also be used for the printing of batteries, paint labels, etc

⑧ products that need to emphasize product brand and logo, such as drug description label, injection, etc. At present, more than 90% of EM Series flexographic printing machines, which are mainly used for packaging and printing, have been required to be equipped with rotary silk printing units by users

(2) lithography combined printing. Generally, high-end packaging and decoration prints are mostly designed with large areas of color blocks, continuous tones of multi-color sequences, and complex lines and patterns, which bring certain difficulties to a single printing means. However, if the combination of lithography and printing is used, this problem can be well solved. It fully enables the whole experimental process to achieve constant force value control. The silk printing machine inks thick and uniform long spots to print a large area of field color blocks, while using the advantages of lithography press to print four colors and complex lines, which significantly improves the quality of printed products and enhances the anti-counterfeiting effect. In addition, for some prints with higher requirements and more complex, multi process combined printing such as flat, convex and gravure printing can also be used, which not only has a good printing effect, but also has a significant anti-counterfeiting effect. In short, the more complex the printing process is, the more difficult the printing is, the better the anti-counterfeiting effect will be

2. Multi color serial printing anti-counterfeiting

multi color serial printing is also called serial color printing with certificate of conformity in the whole box. Its silk printing method is a printing process in which, according to the requirements, a partition is placed in the plate frame, and then a variety of hue inks are put into it. Under the force of the scraper, the inks of adjacent parts are mixed and then miss printing on the substrate. It can print a variety of colors at one time, and the intermediate transition level is soft. Because it is difficult to see the placement distance of the inner partition from the print, the experimental force resolution is 0.1kn, so it can also play an anti-counterfeiting role. If this technology is used on a large area of shading, its anti-counterfeiting effect will be more prominent

3. Manual engraving and typesetting anti-counterfeiting

the manual engraving plate making of silk printing is somewhat similar to the engraving plate making of gravure printing, and different engraving styles can achieve the purpose of anti-counterfeiting. Adopt the indirect plate making method, carve the film film first, and then transfer it to the silk plate. For example, when carving words, the center can be carved into a circle to form a shape outside the inner circle, and this shape can only be seen through close inspection or under a magnifying glass, so as to achieve anti-counterfeiting. The same purpose can be achieved by using revision technology for anti-counterfeiting, and the cost of plate making can be reduced

4. Special gloss anti-counterfeiting printing

Special gloss refers to the products printed by this process. The surface gloss effect is different from the gloss effect reflected by ordinary ink or printing paper. It is a popular new printing technology in the packaging and printing industry in recent years. At present, special gloss printing processes mainly include the following:

① metal gloss printing. Using aluminum foil metal composite paper, after printing transparent ink with silk, the printed products form a special metallic luster effect

② pearlescent printing. First lay silver paste on the surface of the print, and then apply extremely transparent ink. The silver paste flash shows pearlescent effect after refracting through the ink layer

③ pearl gloss printing. Using the ink mixed with mica particles to produce a pearl like and shellfish like gloss effect on the printed products

④ refraction printing. Using a refraction plate to produce a unique effect of glow refraction on the print through a certain pressure imprint

⑤ matte printing. It is printed with matte ink or ordinary ink and then covered with Matt Film to produce weak gloss characteristics

these packaging prints produced with special paper, ink or process not only improve the grade of goods, but also have a relatively safe anti-counterfeiting effect due to the particularity and confidentiality of their printing process

5. Laser holographic iris anti-counterfeiting printing

laser holographic iris printing uses laser holography to make a template in the shockproof chamber and transfer it to a carrier through a certain pressure. Its products are at 45. Under the irradiation of point light source, it can produce colorful and seven rainbow shaped unique effects and three-dimensional images with strong three-dimensional sense, which are favored by consumers. At present, cold press coating and hot stamping film direct hot stamping are used for printing. Because the plate making process of this technology is complex and difficult, during the plate making process, the subtle indoor air flow can lead to the change and difference of the color of the hologram, so it is impossible to make two identical holograms, which has excellent anti-counterfeiting effect

with the development of science and technology, anti-counterfeiting printing, a new printing process integrating a variety of high and new technologies, will play an increasingly important role with the progress of the times, and silk printing will also play a greater role in the field of anti-counterfeiting printing with its unique advantages