The most popular and widespread method using of offset printing press in lahore with moisture , which is based on maintaining a certain balance between the ink and the moisturizing solution on aluminum form. The essence of this technology is that during the printing process, ink-wetted printing elements repel water, while blanks, on the contrary, repel ink. Sometimes this printing method is called “traditional offset”.
Another type of offset printing is dry offset. This technology appeared in the 80s of the XX century, and initially seemed very promising. As can be seen from the name of this method, this technology did not use a moisturizing solution, which is one of the most important components of traditional offset. Thanks to this factor, there is no need to constantly maintain a certain balance between paint and water. White space elements are coated with a special silicone layer that has the ability to repel ink this techniques is based on Dry Offset Printing Technology. There is no need for moisture. Initially, it seemed that this technology would simplify the printing process, and would also save resources required to constantly maintain a water-color balance But not everything turned out to be as simple as it seemed at the beginning. Each of these technologies has certain advantages and disadvantages.
Let’s take a closer look at the advantages and disadvantages of “dry offset” and traditional offset.
The undoubted advantage of the technology of “dry offset” are sharper and more contrast raster dots and, as a result, the ability to print with lineatures above 200 lines / inch. Print quality, color saturation and brightness, contrast, fidelity of fine details in this printing method are certainly better. However, in real life it turns out that in the presence of certain advantages, the “dry offset” has very serious shortcomings that prevent its wide distribution. The fact is that in this technology they use not ordinary offset inks and plates, but completely different consumables. Moreover, this applies to the manufacture of molds, and to the paints used in this technology. There are practically no manufacturers producing shaped materials for this printing method (only one manufacturer still produces shaped materials), the range of necessary inks available on the market is also significantly limited.
Therefore, the prices of consumables are sometimes 2-3 times higher than the prices of consumables for offset printing humidification, which, of course, affects the high cost of production, and accordingly, the prices for printing “dry offset” are very high. The disadvantages of “dry offset” can also be attributed to its greater “moodiness” in comparison with the traditional method of offset moisturizing. ” Dry offset ” it requires a certain temperature, given the importance of maintaining accurate value paint viscosity. Therefore, offset machines running on this technology are equipped with sophisticated mechanisms to prevent overheating.
The rejection of a water humidifier during the printing process in offset printing press in Lahore also increases the requirements for paper: it should be dense and as smooth as possible so that dust and fibers do not contaminate the offset rubber. If this happens, print quality deteriorates, and the printing machine itself soon fails. Also, the room should be absolutely clean, since dust can damage the silicone layer of an expensive printing form, which cannot immediately affect the requirements for paper: it should be dense and as smooth as possible so that dust and fibers do not contaminate the offset rubber.
If this happens, print quality deteriorates, and the printing machine itself soon fails. A traditional offset with humidification has a much lower cost, supplies for it are cheaper and their range is much wider. With all this, humidified offset provides excellent print quality. This method has long taken root in our country; it is the most familiar and popular, due to which there are a large number of qualified personnel who are fluent in this technology and able to work on various types of printing machines. From the foregoing, we can conclude that the market situation is, of course, in favor of traditional offset printing, since there are so far more disadvantages of “dry offset ” than advantages. Therefore, so far the share of “dry offset” in printing is very small – no more than 5%.