Conventional screen printing of non-woven felt fabrics

The part of the holes of the screen printing plate can pass through the ink and leak printing onto the substrate; the remaining part of the mesh on the printing plate is blocked and cannot penetrate the ink, forming a blank on the substrate. The screen is used as a support to remove The silk screen is tightened on the screen frame, and then photosensitive glue is coated on the net to form a photosensitive plate film, and then the positive image base plate is tightly attached to the plate film for exposure. For developing, the part of the printing plate that does not need to be over-inked is exposed to light to form a cured plate film, and the mesh is sealed so that the ink is not penetrated during printing. The mesh of the part that needs to be over-inked is not closed, and the ink penetrates during printing. Black marks are formed on the substrate.

Features of non-woven bag screen printing:

1. Not limited by the size and shape of the substrate. General printing can only be done on a flat surface, and silk screen printing can not only print on a flat surface, but also on a special shape and a concave-convex surface. It can also print a variety of super large posters, curtains, and curtains.

2. The layout is soft and the printing pressure is small. The screen printing plate is soft and flexible, and the printing pressure is small, so it can not only print on soft substrates such as paper and textiles, but also on glass that is easily damaged by pressure. Printing on ceramic ware.

3. Thick ink layer has strong covering power. The thickness of the screen printing ink can reach 30-100μm. Therefore, the hiding power of the ink is particularly strong, and it can be used for pure white printing on all black paper.

The ink layer of screen printing is thick, and the printed images and texts have a strong three-dimensional effect, which is unmatched by other printing methods.

4. Suitable for various types of inks. The wide range of inks used in silk screen printing has exceeded the definition of ordinary inks. In fact, there are pastes, plastics, paints, adhesives or solid powders. Therefore, screen printing inks are sometimes collectively referred to as “printing materials.”

5. Strong light resistance. The broad ink classification problem should be divided according to the printing plate type, that is, it can be divided into letterpress ink, lithographic ink, intaglio ink and filter ink. However, this classification is too principled and cannot express all the reality. In recent years, due to the continuous increase of ink varieties and the continuous emergence of new designs, it is limited only by the type of printing.