What's the difference between pad printing ink and screen printing ink?
The nature of the process of ink transfer and printing plastic head are closely linked, the surface tension of the printing rubber head is controlled in the range of similar and printing ink, it is a system engineering, the essence is to improve the ink transfer efficiency. Japanese from another angle to solve this problem, they in the printing machine with plastic head cleaning device, however, with plastic head cleaning device is the main control of the transfer amount of ink, and the transfer efficiency is not improved. MARABU 6 (actually 8) printing inks are available: GL, mainly used on the surface of metal, ceramic, glass, basic is a two-component ink, you need to add GLH hardening Qi, TPR, is improved based on SR series of printing ink screen printing ink on the SR that can be used the material can make the TPR in the printing process; similarly, TPY is improved in PY printing ink series screen printing ink on the basis; for the surface material is very difficult to print can be used TPU TPT ink; printing ink is mainly used in the cup printing machine; the better stability of TPL, can be in the friction state long time under good uniformity. The other two are TPP and TPS. It is worth noting that the screen printing ink and pad printing ink is completely universal, just need to add additives to change the printability. Therefore, there is no special pad printing ink, you can use screen printing ink instead.
The first screen printing ink is replaced by silk screen ink, and the practice proves that there is nothing absolutely not suitable for it. But the printing ink in different environments, there must be suitable different, such as printing ink, the user does not require it to have a screen printing ink through, but thixotropy and dry phenomenon is required to ensure the better, from the plate to transfer plastic head, the substrate is more accurate. The use of special pad printing ink will no doubt improve the amount of printing easier. MARABU pioneered the development of a dedicated pad printing ink. The surface tension of the ink is kept within a constant range by the action of the additive, so that the ink transfer in the printing process remains absolutely consistent.
In the substrate adaptability, screen printing has great superiority, especially in the amorphous plastic hardware electronics and consumer goods industry, screen printing has been widely praised. However, there is no universal printing method in the world, and screen printing is no exception. In the field of industrialization printing of small area and irregular substrate surface, screen printing has encountered real trouble. This kind of trouble has spawned the birth of printing technology. It can be said that despite the great difference between pad printing and screen printing, the industrial areas involved are very similar.
