What's the difference between screen printing and offset printing in specifications?

Screen printing features: not limited by the size and shape of the substrate. Generally, printing can only be carried out on the plane, while screen printing can not only be printed on the plane, but also on objects with special shapes and concave and convex surfaces, and can also print all kinds of super-large soft clothes and curtains. Soft layout and low printing pressure. Screen printing plates are soft and elastic, and the printing pressure is small. They can be printed not only on soft substrates such as paper and textiles, but also on glass and ceramics that are easily damaged by pressure. The ink layer has strong coverage. The thickness of screen printing ink can reach 30 ~ 100 micron, so the hiding power of ink is particularly strong, and pure white printing can be carried out on all-black paper. Screen printing ink layer is thick, and the printed graphics and texts have a strong three-dimensional sense, which is unmatched by other printing methods. Suitable for all types of inks. The range of ink used in screen printing has exceeded the definition of ordinary ink. In fact, there are some kinds of pastes, plastics, paints, adhesives or solid powders. Therefore, screen printing ink is sometimes called "printing material". Strong light resistance. In a broad sense, the classification of ink should be classified according to the type of printing plate, that is, relief ink, lithographic ink, gravure ink and filter ink. However, this classification is too principled to express the whole reality. In recent years, due to more and more varieties of ink, new colors appear constantly, which are limited to the division by version only.

The characteristics of offset printing, offset printing is a kind of lithography. Simply put, offset printing is a printing method that transfers the graphics and text on the printing plate to the substrate with the help of a blanket. Offset printing has three main characteristics: offset printing uses the intermediate roller of elastic blanket to form a unique rolling mode of indirect printing; Offset printing uses the selective adsorption law of solid surfaces with different properties to make the solid surfaces meet the needs of plane printing through technical treatment; Offset printing uses the natural law that oil and water are immiscible. In the process of offset printing, ink and water are transported.

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