Conventional screen printing of nonwovens

Part of the holes of the screen printing plate can penetrate the ink and leak onto the printing material; the mesh of the rest of the printing plate is blocked and cannot pass through the ink, blanks are formed on the printing material, and the screen is used as the supporting body. The screen is stretched tightly on the frame, and the sensitized film is coated on the screen to form a photographic plate. The positive plate is then sealed on the stencil. After exposure, development is performed. The printing plate does not need ink. The cured plate is formed by light, the mesh is sealed, the ink is impermeable during printing, the mesh of the portion of the plate that needs to be inked is not closed, the ink is transmitted during printing, and black marks are formed on the substrate.

Non-woven bag screen printing features:

1. Not subject to the size and shape of the substrate. In general, printing can only be carried out on a flat surface. Silk screen printing can not only be printed on a flat surface, but can also be printed on shapes and concave and convex surfaces of special shapes. It can also print a variety of large-scale advertisement paintings, curtains, and curtains.

2. The layout is soft and small. Silk screen printing plates are soft, flexible, and have a small press pressure, so they can be printed not only on soft substrates such as paper and textiles, but also on glass-ceramic vessels that are easily damaged by pressurization.

3 ink layer thick coverage. Screen printing ink thickness up to 30 ~ 100μm, therefore, the hiding power of ink is particularly strong, can be pure white printing on black paper.

The thickness of the screen printing ink is strong, and the three-dimensional printing image is strong, which is unmatched by other printing methods.

4. Applicable to various types of ink. The wide range of inks used in screen printing has exceeded the scope of the usual ink definition. Actually there are pastes, plastics, paints, adhesives, or solid powders. Therefore, screen printing inks are sometimes referred to as "printing materials."

5. Strong light resistance. The problem of ink classification in a broad sense should be classified according to the type of printing, namely, letterpress ink, lithographic ink, gravure ink, and filtered ink. However, this classification is too principled to express all realities. In recent years, due to the increasing variety of inks, new designs have appeared continuously.