The non-drying label printing common abnormal analysis _ printing equipment problems

Self-adhesive label printing common anomaly analysis: 1: the non-drying label material smearing printed on paper product take back the ink on the label, stick on the back of another image, causing the back of the ceng dirty. The back to prevent smearing, generally in the paper section of the printer installation powder spraying device, between scatter fine particles of calcium carbonate in the image. In addition, accelerate the dry ink, reduce the image size crib height, between the image into the absorbency of smearing phenomenon have good paper, inhibition. 2: ink printing ink fully appear printing refers to the sticker on the back of the phenomenon that can see the positive impression. To prevent the printing ink, can choose the tightness of paper printing, also can increase the viscosity of the ink, appropriate to reduce printing pressure. 3: when the printing ink misting tiny droplets of ink, flying in the air phenomenon is called misting, also called ink mist scattered, the non-drying label is in high speed rotary letterpress printing machine of the most common fault. To slow misting phenomenon, can increase the humidity printing workshop, using the electrical conductivity of ink such as water-based ink. 4: in the process of electrostatic printing, the non-drying label is not easy to separate, paper on paper accept or losing paper on skewed and misregister, etc. , can be caused by static electricity. Eliminate electrostatic printing, the general electrostatic eliminator is installed on the printer, make the press surrounding air ionization, and the positive and negative on the paper electrostatic neutralization. Can also around the printer or impression cylinder above, after spraying the right amount of water mist to eliminate paper static electricity. In addition, increase printing workshop humidity, which is beneficial to eliminate static electricity.