Removing ink from mesh, particularly in the context of screen printing, involves several steps. Depending on the severity of the ink residue, different methods and products may be necessary. Here's a detailed look at how to effectively remove ink from mesh:
Methods for Removing Ink from Mesh
Here's a breakdown of techniques for removing ink from mesh:
1. Initial Ink Removal Immediately After Printing
- Purpose: Removing the bulk of the ink right after use.
- Process:
- Use a spatula or squeegee to scrape off as much excess ink as possible.
- Apply a suitable screen wash or ink remover to a rag.
- Wipe both sides of the mesh, working until the ink is mostly gone.
- Rinse the screen thoroughly with water.
2. Deep Cleaning with Screen Wash/Degreaser
- Purpose: Eliminating the remaining ink and preparing the mesh for reuse.
- Process:
- Apply a screen wash or degreaser specifically designed for screen printing.
- Use a scrub brush to work the cleaner into the mesh.
- Rinse both sides of the screen thoroughly with water.
- Repeat the process if necessary, particularly for stubborn ink.
3. Using Haze Removers for Stubborn Ink
- Purpose: Tackling deeply embedded or "ghost" images in the mesh.
- Process:
- Apply a haze remover solution to both sides of the mesh.
- Allow the haze remover to soak for the recommended time as per the product instructions.
- Important Note: Haze removers are more caustic, therefore, pressure washing is required after this process.
- Thoroughly pressure wash the screen on both sides to remove the remover and any residual ink.
A Summary of Ink Removal Methods:
| Method | Purpose | Process |
|---|---|---|
| Immediate Ink Removal | To remove the bulk of the ink immediately after printing. | Use a squeegee/spatula, screen wash, wipe both sides of mesh, rinse. |
| Deep Cleaning | To remove any ink that remains and prepare the mesh. | Apply screen wash, use a scrub brush, rinse thoroughly, and repeat if necessary. |
| Soaking with Haze Remover | To remove stubborn and deeply embedded ink stains (ghost images). | Apply haze remover, soak, pressure wash after soaking. |
Important Considerations
- Type of Ink: Water-based inks are generally easier to clean than plastisol inks, which may require stronger solvents.
- Safety: Always wear gloves and eye protection when handling cleaning chemicals. Work in a well-ventilated area.
- Mesh Type: Different mesh types may require different cleaning methods or chemicals.
- Haze Removers: As noted in the reference, these are more caustic and require follow-up pressure washing.
By following these steps, you can effectively remove ink from mesh screens and prepare them for future use.
