Inkjet printing is a computer direct printing technology, that is, the ink is ejected through the nozzle, and the image is directly formed on the printing material. The characteristics of inkjet printing determine that it can realize the variable data processing function that traditional printing does not have, which can better complete the printing of two-dimensional codes, compared with the electrostatic transfer technology and the direct imaging technology of the printing machine that are the same as computer direct printing. In the two-dimensional code printing, inkjet printing has its unique advantages in the comprehensive embodiment of speed, cost and quality.
Since the unqualified QR code printing quality often results in product batch loss, the printing quality is one of the most concerned topics for QR code printing companies. The author puts forward some suggestions on the matters needing special attention in the process of QR code printing.
1. Pay attention to the distance between the paper and the nozzle
The distance between the paper and the inkjet head is usually about 2mm, but sometimes because the tension of the roll feed is unstable or the flatness of the paper cannot be controlled within a suitable range on the single-sheet paper feed platform, it is easy to cause paper and The distance between the nozzles changes during the printing process, resulting in the phenomenon that the barcode is false, broken, or scratched.
2. Parameter adjustment when material changes
For different printing production tasks, substrates will also change accordingly. When the materials of the substrates produced in the previous and subsequent productions are quite different, it is necessary to test before mass production or to judge based on experience how to adjust the technical parameters such as print resolution and print head temperature to meet the mass printing tasks.
3. Eliminate the lack of back space
The backspace of the two-dimensional code refers to the space left to the right of the last black bar of the two-dimensional code. Its main function is to prevent other color blocks from interfering with the scanning of the two-dimensional code. When designing and making plates, many operators often only pay attention to the black bars. When the layout position is not enough, they randomly occupy the back space of the QR code. I have not noticed that the back space of the QR code is also equally important. The QR code is scrapped.
4. Avoid wrong color combinations
The current national standard only lists the standard requirements for color combinations to be met. There is no specific description of which combinations are available and which are not. In actual production, we can only make proofs for the combinations that are difficult to grasp. Only after testing without problems, we can carry out mass production.
In addition, other frequently encountered problems in the printing of two-dimensional codes include position errors, low print quality, and improper selection of paper materials, which require special attention from the operator.
You can find at least one Steel File Cabinet in any office. Swing Door Cabinets are the most classic and practical product of the Steel Storage Cabinets. There are kinds of File Cupboard in different structure and appearance in this collection to meet any of your storage needs. The important feature of this Metal File Cabinet is the adjustable shelves. You can adjust the distance between the partitions according to the items you are storing, which makes the Storage Cabinets with Shelves very useful in a wide range of occasions. There is a Office File Cupboard that are seperated into two parts to let you sort the items you stored more clearly. Need extra space to sort out the small items and office supplies? The Metal Cabinet with Drawers are right for you. All the Metal Storage Cupboard you want are at Shidiu.
Steel File Cabinet,Metal Cabinet With Drawers,file cupboard
LUOYANG SHIDIU IMPORT AND EXPORT CO., LTD , https://www.shidiucabinet.com