Packaging printing and printing packaging
Since Drupa 2004, the demand for paper processing and post-press processing technology has increased significantly globally, especially in the commercial and packaging printing fields. Three years later, at the 2008 Drupa exhibition, more post-press processing solutions were presented to the world, and one of the most concerned was a traditional and novel process-screen printing.
Although silk screen printing has a history of thousands of years in China and is listed as one of the four major printing methods, it is considered difficult due to its large hand-workability, slow speed, low accuracy and stability, experience, and many people. The outdated printing process in Dengda Hall is not well developed in China. In recent years, people's increasing demands for printing quality and effect, coupled with the continuous increase in the price of printing consumables since last year and the sharp decline in profits, many small and medium-sized printing companies have begun to feel the pressure of survival, and large printing companies have also found more investment Expensive offset printing equipment can not bring corresponding profit growth for enterprises. In the face of the improvement and integration of the printing industry, everyone unanimously turned their attention to value-added printing, hoping to enhance the quality and application of the printed matter by highlighting the personality and characteristics of the printed matter, and then expand the printing business and increase profits. At this time, people realized that screen printing has already got rid of the traditional manual operation mode in the traditional impression and has developed into an industrial technology. It can not only print ordinary patterns, but also become the simplest and most capable of providing various value-added services. Economical way.
In fact, in advanced countries and regions such as Europe and the United States, screen printing has become an indispensable basic configuration for many offset printing factories, and users are increasingly looking for high-quality screen printing products, which undoubtedly gives domestic printing companies a good The revelation is that it is an inevitable development trend to use screen printing as a surface treatment method. For domestic printing companies, this is both a favorable opportunity and a great challenge. The opportunity comes from the increasing demand for value-added services in the domestic and foreign markets; the challenge comes from whether printing companies have the courage to invest in good equipment in the new round of printing industry integration, and have passed many domestic competitors. Quality stands out rather than being entangled in the price war from the beginning. At the same time, how to use this indispensable printing process and China's cost structure advantages to expand the domestic business while sharing a slice of the international market.
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Screen printing characteristics and its application in offset printing
Screen printing has unparalleled characteristics of other printing methods, such as: thicker ink layer and adjustable; rich color (including UV) effect, strong texture; large spot color or dot printing; wide range of substrates; suitable for a variety of different Ink (solvent, UV, water-based, etc.). These characteristics make the screen printing application range very wide. The offset printing industry mainly involves the screen printing business including:
★ Commercial printing ★ Packaging printing ★ Almanac greeting cards ★ Plastic cards (credit cards, smart cards, phone cards, etc.)
★ Lottery tickets, raffle tickets, banknotes
The applicable fields and effects of screen printing are more diverse, the following are the main ones:
★ Partial or window-type UV coating ★ Special UV or other ink effects (embossed, diffused, three-dimensional, yin and yang, diamond frosted, odor, luminous / temperature-sensitive color-changing ink, etc.)
★ Protection, anti-counterfeit printing ★ Braille printing ★ Heavy metal, highlighting of local patterns / fonts ★ Spot color printing
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advanced technology
In view of Germany's leading position in the manufacture of printing machinery and equipment, the German SPS® company has naturally become the leader in the production of this demanding screen printing equipment. SPS® was founded in 1953. In 1957, it invented the principle of original stop roller technology, and became a model for many screen printing equipment manufacturers to follow. For more than 50 years, SPS® has always taken the development of the cylinder screen printing line as its core business, providing the industry with an original SPS® one-stop solution (paper-printing-drying-receiving). As an international multinational company, all components of SPS® have passed strict quality control, design and assembly production, and some parts are derived from well-known brands. In addition, SPS® has established well-known offset printing machines in Germany and consumable production plants in Europe. Close relationship. For half a century, SPS® has been known as Heidelberg in the screen printing industry. The reason for this honor comes from its:
Unique roller design. SPS® original stop 360 ° cylinder screen printing technology principle, the only flattened cylinder design provides almost zero screen pitch, eliminates image distortion, achieves the highest registration accuracy, and the repeatability accuracy is up to ± 0.03mm Speed ​​effect; the built-in paper holder provides maximum protection and perfect printing quality for rubber squeegee and screen, etc .; the built-in suction and blowing function of the cylinder can make the paper close to the cylinder to improve the printing quality and can be quickly detached.
Advanced scraping bridge system. SPS® only adopts PEH, pneumatic, hydraulic and electric suspension rubber scraper cross bridge system to ensure that the pressure and ink layer are stable at any speed and printing volume, which greatly improves the printing accuracy.
When SPS is integrated with the original paper feeder, dryer and stacker in a unified configuration, the printing speed is up to 4000 sheets per hour (including UV drying). The optional C105 carbon fiber scraper can provide a constant angle to ensure printing clarity. At the same time, SPS® is easy to set up, maintain and repair, and its various scratch-resistant designs are more suitable for precision screen printing. Strict demand.
"Workers must sharpen their tools first if they want to do their best." Drupa 2008 made us clearly realize that screen printing will become an important means and inevitable trend of value-added printing, and the exquisite and high-end product packaging and printing, as well as the specialization of vision, smell and even touch will become the next step. The development direction and profit growth highlights of the printing and packaging industry, and good screen printing equipment will undoubtedly become a necessary condition for describing this magnificent blueprint.
(SL invincible diamond system production line exhibited by SPS at drupa exhibition)
(Configuration of automatic screen printing system of offset printing treasure)
(The running SPS Athlon system production line)
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