Screen printing with silicone ink involves several steps and specific techniques. Here's an overview of the process:
Materials Needed
Silicone Ink: Comes in two parts (base and catalyst) that need mixing.
Screen: A mesh stencil that defines the design to be printed.
Squeegee: Used to push ink through the screen onto the substrate.
Substrate: Typically fabric, like sportswear or stretchy materials.
Curing Equipment: Usually a conveyor dryer or heat press.
Process
Design Preparation:
Create the design and transfer it onto the screen using a photo emulsion process.
Mixing Ink:
Mix the silicone base and catalyst according to the manufacturer's instructions.
Add pigments if color customization is needed.
Setting Up:
Secure the fabric onto the printing platen to prevent movement.
Position the screen over the fabric.
Printing:
Apply a generous amount of silicone ink at one end of the screen.
Use the squeegee to spread the ink across the screen, pressing it through the mesh onto the fabric.
Repeat if multiple layers or colors are needed, allowing for proper alignment.
Curing:
After printing, the fabric must be cured to set the ink.
Use a conveyor dryer or heat press at the recommended temperature and duration. Silicone inks typically cure at lower temperatures than plastisol.
Quality Check:
Inspect the print for consistency and adhesion.
Ensure the ink is fully cured to prevent peeling or cracking.
Benefits
Durability: Offers high resistance to washing and heat.
Flexibility: Ideal for stretchy fabrics, maintaining elasticity.
Eco-Friendly: Free from PVC and phthalates.
This process ensures high-quality, flexible prints suitable for performance and athletic wear.