Screen printing is the process of stretching silk fabrics, synthetic fiber fabrics, or metal wires onto a mesh frame, and using manual coating or photochemical plate making methods to produce screen printing plates. Modern screen printing technology uses photosensitive materials to create screen printing plates through photographic plate making methods (making the screen holes in the graphic and textual parts of the screen printing plate through holes, rather than blocking the screen holes in the non graphic and textual parts). During printing, the ink is transferred to the substrate through the mesh holes of the graphic and text parts by the pressure of the scraper, forming the same graphic and text as the original. Screen printing equipment is simple and easy to operate, with simple printing and plate making, low cost, and strong adaptability. Screen printing has a wide range of applications, including color oil paintings, posters, business cards, binding covers, product labels, and printed textiles.
Screen printing is also the most common surface character process in our silicone products, among which silicone buttons and silicone toys use this process more widely. According to the character design, adjust the oil difference color, and then use the positioning fixture and screen to print the required characters.
Some parts may feel convex when touched by hand, which requires careful experience. Silk screen printing is a very important process in the silicone product industry. During the operation, it is necessary to pay attention to whether the surface of the silicone product is clean, the baking temperature and time after silk screen printing, and especially not to use low-quality silk screen ink or other materials to replace silk screen ink in order to save costs. This will lead to the occurrence of batch defects.
Strong printing adaptability, thick ink layer, strong three-dimensional sense, rich texture, strong light resistance, bright color, printing area, can be summarized as follows:
1. Screen printing can use various types of ink. Namely: oil-based, water-based, synthetic resin emulsion type, powder and other types of inks.
2. The layout is soft. The screen printing layout is soft and has a certain degree of elasticity, which is not only suitable for printing on soft items such as paper and fabric, but also suitable for printing on hard items such as glass, ceramics, etc.
3. Screen printing has low embossing force. Due to the low pressure used during printing, it is also suitable for printing on fragile objects.
4. The ink layer is thick and has strong coverage.
5. Not limited by the surface shape and area size of the substrate. As mentioned above, screen printing can not only print on flat surfaces, but also on curved or spherical surfaces; It is not only suitable for printing on small objects, but also for printing on larger objects. This printing method has great flexibility and wide applicability.
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