Opting for a dual-mesh setup can enhance screen durability. The choice of emulsion is also critical; while brands like Murakami 6000, 8000, and 7000 are known for durability, the domestic market is rife with counterfeits. Consequently, Murakami 9500 is recommended as a reliable alternative; despite being a Japanese brand, its durability is trustworthy.
For solvent-based emulsions, Cort 1788 is an excellent choice, particularly for high-precision products and warm-color applications. However, if water-based inks are used, a water-resistant emulsion is required; domestic brands perform well in this category, with products from Beijing, Jiangshan, and Keqiang being worthy of consideration.
The use of a hardener is also vital; a two-component hardener is recommended to ensure optimal results. Since a dedicated exposure unit is unavailable, exposure must be performed outdoors; extending the exposure time can improve the emulsion's durability.
When exposing outdoors, choose clear weather to avoid uneven exposure caused by overcast or rainy conditions. Additionally, protect the emulsion from external factors such as dust and rain.
Regarding storage, emulsions should be kept in a cool, dry place away from high temperatures and humidity to help extend their shelf life.
Maintain a clean environment during screen printing operations to prevent dust and impurities from affecting print quality. Regular cleaning of the screen mesh with appropriate cleaning agents can also extend the screen's service life.
In summary, selecting the right mesh, emulsion, and hardener-while paying attention to exposure time and environmental factors-can effectively enhance the durability of screen printing stencils.
