With the continuous maturity of digital printing technology, some merchants have improved the screen printing methods adopted by enterprises and enhanced the status of screen printing through digital printing technology.
The reproduction of image manuscripts with controllable ink layer thickness is the basis of the screen printing process. Using screen printing technology we can also achieve flexibility that cannot be achieved by other printing methods: the thickness of the ink layer can range from 1 μm to 300 μm The size of the object can range from a few microns to a few square meters, and the range of the substrate is wide. Even if it is liquid or suspended in liquid, it can be screen printed. The only limiting factor is that it must make a screen printing plate. To complete the printing.
Despite the many advantages of screen printing, the continuous impact of digital printing on screen printing has caused some companies to abandon the screen printing process, and even some experts believe that the prospect of extrusion jet inkjet printing is very bright. In fact, the change from screen printing to digital printing will make the company very vulnerable and extremely vulnerable.
With the development of digital technology, the operation of digital printing machines is simpler, the number of manufacturers producing digital printing equipment is also increasing, the market has become very open, and the dream of thinking that digital printing can bring great profits three to five years ago is also Then it shattered. The cost of always staying at the forefront of technology is high, and it must be sold and profited from to maintain it. It is not difficult to find that some inkjet printers that have just been used for five years have already faced obsolescence, and five years have just reached the peak of their work for screen printers. It is undeniable that screen printing is a low-profit area, but this is mainly because the market economy is in a downturn and excess production capacity, not because of the advancement of digital technology.
market situation
We cannot deny that inkjet printing is indeed a technology for the present and the future. This technology has strong competitiveness and vitality. You can imagine that nearly 200 patent rights are generated in this field every month. At what speed is this developing? However, the development of this technology has stabilized, and every time a new technology is born, counterfeit products will appear within a few months, and major manufacturing giants have to sell their large-format inkjet printers at half price. . Faced with such fierce competition, the big players in the market are bound to respond accordingly, or work hard on design or shift manufacturing to China to reduce costs.
According to the regular market law, when the investment and research and development, product improvement and other periods reach a stable state, the manufacturer will integrate funds to consolidate resources to prepare for the next round of development. Due to the introduction of inkjet products in China, the time of this integration period has been greatly shortened, and those manufacturers who have expected the integration period will find themselves in a dangerous situation.
From the user's point of view, should we buy now or wait for cheaper equipment? If you buy it now, once the lower price product comes out, will the current supplier still exist? Will the technical support and service be as good as before? Will you see the fusion of the digital equipment market, just like the prediction of the screen printing equipment market in the mid-1990s? These questions are still unable to give a definite answer, but in view of the current trend, the future development plan of the enterprise should be considered more carefully.
Screen printing and inkjet printing technology comparison
Dyes are traditional color formers used to make inkjet inks, and some lower-cost inkjet printers are still in use today. Dyes can be dissolved in liquid carriers-water or solvents, showing high saturation and bright colors, but their light resistance is poor. On the other hand, the new pigment ink has good light resistance, but it must be ground to match the particle size with the diameter of the nozzle of the inkjet head. The nozzle diameter range is between 20-80μm, depending on the process requirements and uses: the size of pigment particles used in industrial production should be less than 1μm; used in office areas should be less than 200nm. For screen printing, the size of the pigment particles is only limited by the size of the mesh, and should be fine-tuned according to the cost of the screen.
Although screen printing technology is not as attractive as digital printing technology, screen printing using digital technology will reflect its great advantages. The inherent adaptability of screen printing, combined with digital technology, will produce a printing press with super profit. It is not about giving up screen printing, but considering expanding its ability to generate profits. Think about what you can achieve with screen printing and digital printing can't do it, then you can continue this way.
What problems can't be solved by squeeze jet (now stop using the word)? For example, changing the type of ink using the same inkjet nozzle system and using any type of ink not specifically made for this production system can cause trouble. The screen printing has great flexibility in the type of ink or the use of media, and is widely used.
Digital printing does have a great impact on screen printing in terms of image reproduction, because customers have too high requirements for screen printing. In the same edition, they no longer accept golf-like dots and from blush to wax yellow. Meat tone, but want to get bright and consistent colors, which is what high-end digital printing can achieve.
At present, through the application of direct screen printing technology, the combination of digital technology and screen printing is a feasible practical exploration. In the application of imaging technology, the application of hot wax screen imaging and direct printing technology has replaced the large-format positive film of traditional photographic imaging. As for which of these two technologies is better, it is still a matter of opinion-direct imaging plate-making technology is superior in speed and economy, while hot wax technology is more advantageous in quality and flexibility. All plate-making systems must have the best performance in the final application. If the effect is not good in the actual application, the best process technology is also a waste. Lucky people will use these two to complement each other to achieve satisfactory results.
If you have such skills, please share your experience with customers. The salesperson has a bad habit of saying: "All you do is ...". You have to consider how the choice of technology affects your operation.
Direct printing technology requires control of environmental humidity, which is crucial. In addition, the fast photosensitive emulsion materials used in the direct plate-making technology cannot use water-based inks, and the photosensitive images used in this process cannot tolerate a little pinholes and defects. When the screen line number is 40lpi, the optimal tone reproduction range is 2 -98%. The thermal wax screen imaging equipment is increasing its speed, and the routine maintenance of the nozzle can also maintain the quality and reliability of the image.
For these two technologies, the stability of the frame is the key. The deformed screen frame will shift the focus of the direct image light source. In the hot wax plate making process, even with the new equipment, the image will be deformed following the curved screen frame. .
Screen printing combined with digital technology
The greatest possible success of combining screen printing with digital printing is to use a digital printing machine to do proofing for screen printing. Traditionally, we use screen printing machines for proofing, which is costly. Other options include digital proofing and Chromalin proofing, which uses DuPont's mixed dye toner to match the color of Pantone chromatography, put the toner into the solution, and then apply them to the substrate. This technique cannot truly show the final effect obtained by screen printing.
However, the sophisticated digital proofing technology provides us with an opportunity to simulate screen-printed images more realistically. RIP outputs the actual dot shape at a certain angle, and then reproduces the density and hue that can be achieved by the ink used for screen printing. This method can also adapt the screen printing machine or synthetic material with different performance through the calibration curve, so that the proofing is closer to the image effect of screen printing. Further improvement of the method can also feed back the characteristics of the personalized screen printing machine to the system. Of course, this should be done under the control of the printing staff and the template technician.
The precise proofing process should follow the scientific principle, and this principle should also be applied to the prepress department that can see the image effect before printing.
As screen printers use digital technology more effectively, they will be able to reduce costs and increase profits. In this way, the printer will be convinced that the screen printing technology still has its viability, and will pose greater challenges to digital printing. All of these results will expand the market for imaging technology. Here the printers are brainstorming to propose a more comprehensive solution, not only for screen printing or digital printing, but any printing technology that satisfies customers will create profits for merchants. This is exactly the perfect combination we seek.
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