How traditional screen printing combines digital printing
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
Many years ago, to be precise, in 1994-1995, many people believed that the emergence of digital printing was a threat, especially for screen printing, it was a terrible threat. Within five years, digital printing will engulf screen printing, and even Americans and Europeans believe this. Fortunately, in the face of this situation, there are other down-to-earth and far-sighted people, such as the European Screen Printing Association (FESPA) and the International Screen Printing Association (SGIA), the highest screen printing professional organizations that they identify and propose. The best solution, organizing and integrating large-format digital printing within their associations, and then combining digital printing in their own printing houses, so that digital printing does not take place in front of screen printing. competition. I remember that at some international technical seminars and exchanges, including the 1996 FESPA exhibition in Lyon, some digital printing practitioners have done statistics, they claim that the statistical results show that digital printing is in other printing processes (mainly There will be a breakthrough expansion in front of the position of the screen printing, but they have forgotten the following three points:
1. Due to mechanical and physical limitations such as the switching speed of the print head or the ejection speed of the ink droplets, digital printing technology will eventually reach its limit at some point or soon;
2. They often claim that digital printing can achieve high printing speeds, but forget that its actual printing resolution is only 50dpi or 72dpi. Suppose that to achieve the quality required for printing POP, ie 300dpi or 600dpi, the printing speed is slowed down by 6 to 12 times, and the speed of 600m2/h becomes 100m2/h or even 50m2/h. In screen printing, our customers demand a quality of 300L / inch (120L / cm), often 610dpi, we need photo-like quality, in contrast, digital printing is too slow;
3. Many digital printing processes require the use of pre-processed substrates, and after the printing is completed, special finishing operations are required to protect the printed matter mechanically and physically. These finishing processes are used. The inks or colorants are very expensive, and the finishing process increases the cost of the printed product. In addition, they also ignored the fact that the screen printing process can react in the following ways so quickly.
1). Screen printing, like offset printing and other printing processes, makes full use of the advantages of digitization, and its prepress process is quickly fully digitized.
2). Screen printing technology has developed graphic printing large format multicolor printing presses and computer direct web printing system systems, and has comprehensively improved and improved screen printing technology, products, equipment and productivity. As a result, in 1996, 100 copies of jobs were digitally printed, and by 1990, the economical printing of digital printing had dropped to 50, and screen printing quickly regained a lot. Part of the lost market. The current situation is not as optimistic as they predicted, and screen printing has reached relative stability in Europe and elsewhere in the world. For many screen printers, digital printing has become a necessary and complementary business. Digital printing has been accepted by screen printers, and its existence is no longer seen as a threat, but a very meaningful opportunity. This is why our screen printing companies have to enter the digital printing field. Let us now discuss the market for digital printing. For the digital printing market, my point is that some medium-sized screen printing companies or signage manufacturers have about 20 to 40 employees, equipped with semi-automatic and fully automatic screen printing production lines, suitable for their choice of digital The printing technology should be a piezoelectric inkjet printer, not a thermal inkjet. Thermal inkjets are too limited in their ability to print on some traditional substrates. However, 50% of piezoelectric inkjet printers use solvent inks and have environmental pollution problems.
I have suggested to my friends in Italy that it is best to purchase a platform piezoelectric printer with advanced UV technology. This system can print on a variety of substrates, pre-press and post-press materials do not need to be specially processed.
This is a major advancement in digital printing technology that is well adapted to the needs of screen printers, enabling them to offer more services to their customers without any environmental pollution problems. For a small-scale screen printing plant with an investment of $150,000, there is no pollution in production operations, no additional drying equipment is required, and only a UV curing system is required after the printing head. You must know that operating in a market with a large format (4 to 7 m wide) means that your investment will be at least $700,000. For some large companies with investment potential, this number is still very conservative. In this case, you need to do a lot of commercial operations. Need to print 30m2 or more prints, for most customers only once a year, only for your one-year production business, your sales staff will provide you with 200 to 300 new customers. On the contrary, if your digital technology investment is reduced to a minimum of 20,000 US dollars, in this case, you can only print jobs with a width of less than 135cm, the printing speed is not fast, the quality level is in the middle, the bottom, etc., however, This will help you serve your existing or new customers. Such digital presses can only use solvent inks (unfortunately more than 50% volatiles), and screen printing conventional infrared dryers (IR) or jet dryers behind digital presses. Of course, there are environmental pollution problems.