The principle of digital t-shirt printing machine inkjet printing

Digital t-shirt printing machineOn-demand inkjet printing is to produce ink droplets according to the needs of the pattern. It is divided into different inkjet methods such as bubble type, piezoelectric type and valve type. All these inkjet methods have different characteristics, and the requirements for ink are also different.

The more common piezoelectric material of the print head is lead zirconate titanate (PZT) ceramics, and electrical contact equipment is adhered to the material. When high pressure is applied in a specific direction, the piezoelectric material will deform. Subsequently, a lower voltage (usually about 60-80V) is applied along or perpendicular to the direction of deformation, and the physical size of the ceramic sheet changes.Clothing digital printing machineIn some driving systems, positive and negative pulses may be applied, and the formation of a single droplet depends on the applied voltage and its limited duration. Otherwise, satellite ink droplets may be formed.

The working principle of the piezoelectric drop-on-demand inkjet of the digital direct-injection printing machine, the piezoelectric crystal in the nozzle expands according to the input electric signal, and squeezes the ink to eject ink droplets from the nozzle to form a pattern on the fabric. After the voltage signal disappears,T-shirt personalized custom printingThe piezoelectric crystal returns to its original normal size, and the ink chamber is refilled by capillary action. The frequency of action of the piezoelectric nozzle is about 14,000 times/s, that is, it can eject 14,000 ink drops per second, and the volume of each ink drop is about 150 pL.