inkjet printer and screen printer Different analysis.

Inkjet printing is a non-contact, no pressure, no printing plate replication technology. It has a free version of the common characteristics of digital printing, enabling variable information printing.

Screen printing re-ticular plate, the ink on the printing plate in the printing squeegee pressing the substrates to the through hole portion of the drain from the layout, and then complete the printing of the print job.

1 Introduction to two kinds of printing
(1) ink jet printing Principle
(2) ink jet printing
There are many ways of inkjet printing, the basic principles are the graphic information stored in computer input to the first inkjet printer, and then through a special device, under the control computer, the mist sprayed from the nozzle to the substrate surface shaped drops, according to the substrate surface charge effects in direct imaging, become the ultimate print.
(3) Classification of the ink jet printing
(4) Classification by inkjet system
The basic principle of the ink jet printing ink droplets are generated first, and then guided to the set position. Different inkjet systems can be divided into two continuous and on-demand.
Continuous inkjet printing (CIJ), whether stamped or non-image-type formula is to produce a continuous flow of ink droplets, and then deflected by an electric field formed in the image transfer, the non-image areas of the final recovered or dispersed droplet .
On-demand ink jet printing (DOD), only part of the image area has generated droplet. Dedicated to excellent print quality images, suitable for packaging color, textile printing and large format billboard, is the ideal choice full-color, high-precision printing, printing quality is the most important consideration.
(5) Press printing color classification
Their printing color inkjet printing, inkjet printing can be divided into black and white and color inkjet printing two kinds. Black and white ink-jet printing with a single machine structure and corresponding ink system is relatively simple, and color inkjet printing is relatively more complicated.

2 Screen printing Principle
(1) screen printing
Modern screen printing technology is the use of photographic materials produced by photo lithography method of screen printing (screen printing to make holes in the screen version of the graphic part of the through-hole, the hole instead of the graphic part of the screen is blocked ). By squeezing the printing squeegee, the ink is transferred through the graphic part of the mesh to the substrate to form the same with the original graphic.
Composition and equipment characteristics

(2) screen printing
Screen printing consists of five elements that constitute that of screen printing, squeegee blades, ink, printing units and substrates. Screen printing equipment is simple, easy to operate, printing, plate making simple and low cost, adaptability. Screen printing wide range of applications, there are many common printing, such as color paintings, posters, business cards, binding covers, signage and printing products such as textiles.

Comparative analysis of three. Two printing methods

Inkjet printing is screen printing after another versatile new printing technology, printing and screen printing as extensive material, can be printed in different shapes, different surface materials, adaptability, is now extremely rapid technological development, market expanding new printing methods, showing great prospects for development.
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