Exploration of Historical Development of Inkjet Printing Technology

There are more than 20 ink-jet printing methods, but the basic principle is to generate small ink droplets first, and then guide them to the set position. It can be roughly classified into two types, continuous and on-demand. The so-called continuous inkjet, regardless of the printed or non-printed type, the ink droplets are generated in a continuous manner, and then the non-printed ink droplets are recovered or dispersed; while the on-demand ink jet is only in the printed portion. Only produce ink drops. Inkjet printing can be divided into black and white inkjet and color inkjet according to the printing color. Black and white inkjet printing uses only a single ink, so the machine structure and the ink system are relatively simple, and color inkjet printing is relatively complicated. At present, the resolution of inkjet printing can reach 40 dots/mm, and the quality is close to that of a photographic image.

Digital inkjet printers have a wide range of uses. They have general-purpose models, but their speed, resolution, and color reproduction area differ greatly depending on the purpose of use. The number of suppliers of continuous inkjet digital printers is small. There are two main types of equipment, one is high speed printing and the other is high quality color proofing. The reason why the number of suppliers of continuous inkjet printers is limited is that inkjet heads must be manufactured by companies that can provide complete solutions. On-demand ink jetting is different. There are many OEMs of ink jet heads on the market. On-demand ink jet heads can be manufactured in large quantities, and continuous ink jet heads are relatively complex and difficult to mass produce.

Inkjet printing is a new non-contact, pressureless, non-printing printing technology that can be printed by inputting information stored in an electronic computer into an ink jet printer. It also has the common feature of digital printing without printing, which enables variable information printing.

The history of ink-jet printing can be traced back to 1884. The American C.H. Richard put water in the syringe and the droplets from the end of the squeezing needle flew out of the droplets. This was inspired. If the liquid was taken out of the jet, it was electrically controlled. Its placement, you can form a portrait on paper, this is called fog ink printing. The earliest development of Ink-jet Printing (inkjet printing) was in 1878. By 1951, Siemens patented the technology of converting liquid ink into ink droplets. It was not effective until 1960 because of defective needles and ink. Formally entered the practical stage.

In 1964, by using a special machine, it was possible to control the size of the ink droplets and the ejection rate. This was the prototype of the inkjet printer. Until 1967, Hertz developed a continuous inkjet printer, which is currently in the industry. continuousInk-jetPrinting used on. In 1972 Siemens introduced Piezoelectric (piezoelectric) dro-on-Demand Ink-jetPrinting. In 1979 Canon introduced Thermal's dro-on-Demand Ink-jetPrinting, but called BubbleInk-jetPrinting. In 1984 HP also introduced Thermal's dro-on. -DemandInk-jetPrinting, above is the development history of Ink-jetPrinting. Twenty years ago, this process began to be applied to the printing of barcodes and serial numbers of products, but the resolution was not satisfactory at that time. Until nearly 10 years, the quality of inkjet printing has made rapid progress.