INDEX >> NEWS >> Technical of Sceen Print of Steel Barrel

In the photographic plate method, the manufacture of highly resistant plates can be printed direct method. Work at the plate topics covered are: how to accurately choose the plate manipulation Chuan materials, such as wire mesh, mesh boxes, photographic materials, as well as how to grasp the bottom plate making, stretching, coating, copy, developing, light, etc. . If you need a large amount and when required to achieve a certain quality, you need to use the printing press.

When printing on one end of the screen version of the pour ink, ink in the absence of external force does not leak through the mesh itself on the drums surface.

The initial process of steel drum screen printing drums the whole draft.

Screen printing plate is the basis for the screen printing, if the plate quality is not good, it is difficult to print out good quality products. These requirements are based on the quality of the printed pattern to set the accuracy of the image. Then select the plate method.

The basic principle of the screen printing drums are: screen printing mesh sector can transmit ink, printed on the drain surface of the drums; mesh on the remaining sectors of the blocked plate, not through the ink, the drums formed on the surface vacancies. Not too close to the accuracy of the former is capable of drawing a pattern; require high accuracy, and exaggerated tone gradation printing pattern, the photosensitive plate-making method is necessary. Therefore, in order to make a good quality wire mesh panels, plate-making process in accordance with the requirements necessary to accurately grasp plate technology, strict selection of the plate material plate. To the screen as an example, it is now much more expensive than having the material ideal elasticity and recovery of nylon net, it's an uneven surface can be printed. Printed materials for different textures> (and some in the film print, some in galvanized plate direct printing, etc.), different ink adhesion function, when used to pay attention to select the appropriate drying methods. Printing processes and determine what printed materials should be used. When the wiper plate with a certain inclination angle and scraping pressure of ink to the ink transferred through the stencil drums under a screen, in order to achieve the replication pattern.

For a small print run, less demanding print quality steel drums, hand-printed using the most convenient. The failure is often thrown printing and platemaking technology and plate-making in the choice of materials related to inappropriate. You need a higher quality image, the best use of indirect-plate method.

Now the plate method is more commonly used photochemical the plate method. Because screen printing materials, quality, appearance vary widely, so also many types of presses. Because in this method the bottom plate close to the positive-proofing screen of the photosensitive film, and therefore poor image quality. This plate-making method to screen for support, the tension on the mesh screen box, then sensitive adhesive coated on the Internet, forming a photosensitive version of the film, and then the bottom plate in close contact with the male version of the film copy, upon exposure, developing, no ink on the plate over the light department, to form a cured film version will mesh sealed, impervious ink printing; department needs ink mesh over the plate is not sealed by the time of printing inks, in ink on drums forming surface. Platemaking methods generally have cut plate and photographic plate are two ways to manually dig. At this point, you want to clear the size of the printing drums, shape, location, number of copies, etc..

Screen printing is based on the original basis. For drums concerned, because the multi outdoor use, so the choice of ink in particular should face its weather resistance.