What is an offset press? And what are the machines for printing paper?
Press the input in different ways, can be divided into the sheetfed and web offset printing machine; according to the chromatic number of a complete paper can be divided into single color, double color, four-color and multicolor printing machine; according to the maximum printing paper format can be divided into small press, six open, four open, a piece of paper and printing machine, in addition to a paper double-sided printing machine can be completed at the same time printed on both sides of the. According to the distribution system can be divided into alcohol machine (ie alcohol dampening offset press, water wheel (that is wet plate offset press) and waterless offset press.
Offset printing press (offset press) is a lithographic printing machine, printing, printing graphics and printing from the printing plate first to the rubber cylinder, and then transferred to the paper by the rubber roller.
Sheet fed offset press is a lithographic press for printing high-grade printed matter and printed matter. It is the mainstream of modern paper printing.
Offset lithography is a very simple, means of speaking that is offset rubber (Pib) will plate transfer to the substrate of printing, it is also the existence of Pib, named after the printing mode. The blanket has played an irreplaceable role in the printing process, such as: it can make up for a good substrate surface is not flat, so that the full transfer of ink, it can reduce the plate of water (see water in the role in printing) to the substrate transfer etc.. The above is only a general concept, we usually say that now the offset may be more narrow in scope, namely the three roller (printing, lithographic printing, embossing blanket), in the south of our country to the printing mode called offset printing.
