Solvent-based and silicone-based screen printing inks have significant differences in composition, performance, application scenarios, environmental protection and operation process. The following is a specific analysis:
1. Composition and curing principle
Solvent-based screen printing ink
Silicone-based screen printing ink
Composition: Silicone is the main film-forming substance, with silicone resin, curing agent and pigment.
Curing principle: It is necessary to cross-link and cure the silicone molecules by heating (100 degree -250 degree ) or ultraviolet irradiation to form a highly elastic and high-temperature resistant film layer.
2. Performance characteristics
Solvent-based screen printing ink
Silicone-based screen printing ink
Advantages: high elasticity, high temperature resistance (above 200 degree ), chemical corrosion resistance, good flexibility, environmental protection and non-toxic (some products meet ROHS standards).
3. Application scenarios
Solvent-based screen printing ink
Silicone-based screen printing ink
4. Environmental protection and safety
Solvent-based screen printing ink
Safety: Solvents are flammable and explosive, and need to be kept away from fire sources; long-term contact may harm the respiratory system and nervous system.
Silicone-based screen printing ink
Environmental protection: Some products are halogen-free and heavy metal-free, and comply with environmental regulations.
Safety: Non-toxic and harmless after curing, but skin contact and inhalation of volatile substances should be avoided before curing.
5. Operation process
Solvent-based screen printing ink
Silicone-based screen printing ink
Process requirements: The curing temperature and time (thermal curing) or UV light intensity (UV curing) need to be precisely controlled; the surface of the substrate needs to be clean and oil-free.