Cum să îmbunătățiți eficiența de lucru a mașinii de serigrafie

Cum să îmbunătățiți eficiența de lucru a mașinii de serigrafie

When mixing ink, you should add as few inks of different colors as possible. Generally speaking, the fewer types of colored inks you use, the better the mixing effect will be. Some screen printing inks are dried by drying. Light colors are lighter than undried ones, and dark colors are darker after drying. In addition, whether there is any difference in the color tone of the ink before drying and after drying during printing is an issue that is easily overlooked. Generally speaking, through natural drying (solvent volatile ink), the color is difficult to change when the substrate is plastic, metal, paper, glass, etc.; however, if the color is used for ceramics, it will only appear after burning and oxidation. Color can only be adjusted based on experience. As for screen printing inks that are dried by heat setting or light setting, the color changes in shades, as mentioned above. When the amount of ink adjustment is large, you can choose an ink adjustment machine, which can complete the color adjustment in a short time. I will share here what you need to pay special attention to when adjusting ink color for the above screen printing machine. Printing workers who want to adjust the ink should immediately make recommendations on printing colors and process technology.

When printing with a screen printing machine or printing materials should be kept dry at room temperature, away from direct exposure to ultraviolet rays or strong light, and placed flat on a smooth surface. Before printing with the screen printing machine, the screen with the appropriate ink must be selected based on the performance of the ink. Before printing with the screen printing machine, the screen material should be selected according to the surface condition of the substrate. For curved or uneven surfaces, a nylon mesh with good elasticity should be used. For a highly absorptive surface, a screen with a large amount of ink should be selected; for smooth surfaces, it is better to use High-tension wire mesh; low-mesh wire mesh for rough surfaces; static-removing wire mesh for insulating surfaces, etc.

Before printing, the screen printing machine must determine the image resolution of the screen printing: thin wire diameter and high mesh number will result in high resolution. The thicker the wire diameter and the lower the mesh number, the lower the resolution. However, the higher the mesh number, the better. If it is too high, the ink output caused by screen printing will be insufficient, resulting in incomplete or damaged imprints. Or if the printed glue is thicker, we can use linear (commonly known as zebra crossing) or dotted (commonly known as checkered) printing.

The drying of screen printing glue and the drying of water-based screen printing glue are accelerated by the general increase in temperature. The following is a brief analysis of one of the screen printing equipment, the printing machine. The printing machine is a contact imaging equipment used in the production of printing plates. It is used The pressure (including atmospheric pressure and mechanical pressure) makes the film and the photosensitive plate closely fit, and under the special light source, the photosensitive film on the PS plate undergoes a chemical reaction, thereby accurately printing the image on the original plate on the photosensitive plate.

Generally speaking, when printing with a screen printer, if the screen opening is larger than the mesh diameter, a screen with a mesh opening smaller than the mesh diameter can reproduce a higher resolution. At present, the development momentum of fully automatic screen printing machines is very good, and more screen printing equipment companies have invested in this field. The market share of fully automatic screen printing machines is increasing rapidly. Many large companies have put them into use, and some small and medium-sized enterprises are also gradually introducing them. Fully automatic screen printing machines will definitely replace the currently widely used semi-automatic screen printing machines in the future. This is an inevitable trend in the development of the industry.