Why Use a Base?
A base (underbase) is essential when printing on dark garments, as it provides a foundation layer for colors to appear vibrant and accurate. Without an underbase, inks can become dull or shift in tone due to the garment color showing through.
Choosing the Right Mesh Count
Selecting the correct mesh count is critical for achieving the right balance between ink coverage and detail retention.
- For a standard white base, a 160-230 mesh count is commonly used.
- A lower mesh (160-180) allows more ink deposit, suitable for thicker inks or heavier coverage.
- A higher mesh (200-230) provides more detail and a softer hand feel while maintaining opacity.
Single Pass vs. Double Stroke
- In most cases, one pass with a sharp squeegee blade is sufficient.
- If additional coverage is needed, a double stroke can help as opposed to print flash, print flash.
- Avoid excessive ink buildup, as it can affect the top color layers, registration, and curing.
Read more on why a single pass is best here: How Many Passes Should You Use for a Base Print?
Ink Selection & Squeegee Setup
- Use an opaque white ink designed for underbases, ensuring proper print opacity.
- A 70 durometer squeegee at an angle of 65-75 is ideal for controlling ink deposits.
- Maintaining a consistent off-contact distance helps with ink release and prevents excessive ink flooding into the fabric.
- Properly related to having tight screens (25 newtons or higher) Learn more...
Flash Curing the Underbase
- A quick flash helps gel the base before printing additional colors.
- Flashing to cure, flash to gel, tack, dry, will not transfer ink on other screens during production.
Final Thoughts
A properly executed base ensures bright, vibrant colors and a smooth printing process. Optimizing mesh count, squeegee setup, and stroke technique will lead to efficient prints with minimal ink waste and a great final result.
Comments
Article is closed for comments.