Flexo and platemaking

As a relatively new domestic printing industry, flexographic printing has achieved considerable development in recent years. Flexographic printing using water-based inks is an environmentally friendly printing method, unlike gravure printing. Moreover, the cost of flexo printing is very low, and the amount of printing is surprisingly large. For a variety of special materials, it can be used to print sheets and webs, and it is most suitable for packaging printing and printing of various labels.
Compared with the flexographic products of Europe and the United States, the quality of flexographic printing in the country is much inferior. Why can't domestic companies print imprints that rival the quality of offset? It is not the quality of flexo presses. The main problem lies in the production of flexo plates.
The biggest problem with flexographic printing is that dot gains are too severe, so it is impossible to represent 5% or less of outlets, and the level of intermediate and dark segments is also seriously lost. At the same time, overprinting is also difficult due to the ductility of the flexographic plate.
In response to the above problems, the direct thermal flexo technology has brought the quality of flexo printing closer to offset printing through various technical means. The most important change is the plate itself.
The laser is exposed directly on the carbon mask layer so that no film is needed and no vacuum is applied during the printing. If you use the most advanced liquid photosensitive resin digital flexo plate can also do:
1) Dots from 2% to 98% can be reproduced during printing.
Large outlets have larger pressure bearing areas and fewer outlets have larger outlets than smaller outlets. In digital liquid flexo, because the height of small outlets is lower than that of large outlets, outlets of small outlets can be effectively controlled.
2) Stably reproduce the intermediate level network points.
3) Plate materials are cheaper.
4) Details in highlights and shadows are preserved, flat screens and gradient meshes are very compliant.
5) UV printers and plateetters are also required. Customers' existing equipment investment will not be wasted.
The digital flexo always touches the printing material at the center point when printing. The traditional flexo is that the edge of the dot first touches the printing material, so it is easy to cause a hollow dot. The digital flexo does not have this problem.
Another effective method to improve the quality of flexo printing is to use Hybrid flexo screening technology. Simply put, the Hybrid screening technology uses the FM screening technology to screen the high-light part of the image (10% to 15% of the outlets), while using the traditional in the midtones and shadowtones (over 15% of the outlets). AM screening technology screening. The size of the FM screening network site is about 50 microns. After the screen is screened using Hybrid technology, due to the dot diameter of only 50 microns, the tip will have a relatively large abrasion at the time of flushing, so it will be lower than the average height of the large dot network, and thus effective. Reduce the expansion of outlets.
Creo Canada and Israel Saturn have their own thermal flexo plate making equipment before the merger. After the merger of the two companies, they can provide a full range of thermal flexo platesetters ranging from open format to super large format (double full open) and seamless sleeve flexo.
We are looking forward to the rapid development of flexographic plate making and printing technologies in the country, and for the ultimate packaging and printing customers to provide lower-cost, higher-quality prints.

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