Ink printing machine tutorial video for beginners: Web Link
The printing machine (The printer) is a machine for printing text and images. Modern printing presses are generally composed of mechanisms for loading plates, applying ink, embossing, and delivering paper (including folding).
Its working principle is: First of all, the text and images to be printed to make the plate, mounted on the printing press, and then by hand or the printing press will be coated with ink on the plate where there are text and images, and then directly or indirectly to the transfer of the paper or other substrate (such as textiles, sheet metal, plastic, leather, wood, glass and ceramics) on.
Thus reproducing a print identical to the plate. The invention and development of printing machines play an important role in the spread of human civilization and culture. The world's printing machinery since the 1980s has made greater development. more than 20 years, the development of printing machinery has gone through three stages.
The first stage is the early 1980s to the early 1990s, this stage is the heyday of offset printing process development. This period of sheetfed offset presses maximum printing speed of 10,000 prints / hour. A four-color printing press before printing pre-adjustment preparation time is generally about 2 hours.
The automatic control of the printing press is mainly concentrated in the automatic paper knot, automatic paper collection, automatic cleaning, automatic detection of ink color and ink volume automatic adjustment and register remote control and so on. This period in addition to single-color, two-color machine, each sheetfed offset press manufacturers almost all also have four-color machine manufacturing capacity, most manufacturers are able to manufacture.
In 1439, Germany's Gutenberg made a wooden letterpress, this vertical spiral hand-triggered printing press, although the structure is simple, but it has been used for 300 years; 1812, Germany's Koenig made the first round press flat letterpress; 1847, the United States of America's Hoy invented the rotary printing press; in 1900, made of six-color rotary printing press; 1904, the United States of America Rubel invented offset printing press.
The twentieth century before the 1950s, the traditional letterpress process in the printing industry dominates, the development of printing presses to letterpress printing presses.
But the lead alloy letterpress process has the disadvantages of high labor intensity, long production cycle and pollution of the environment. From the 60's, with a short cycle, productivity and other characteristics of lithographic offset printing process began to rise and development, lead alloy letterpress printing gradually replaced by lithographic offset printing. Soft letterpress printing, hole printing, electrostatic printing, inkjet printing, etc., in packaging printing, advertising printing has also been developed.