INK REMOVAL. On-Press. Not something we generally like to do, but a necessary step when a color change or ink smear has to be corrected. Here’s the 411 on how-to finesse the ink off the screen frame for an on-press ink change and a demo on the easiest way to remove ink from the screen at the conclusion of printing.
FIRST UP. ON-PRESS Ink Removal Steps
Start with PWG122 Press Wash that has been designed to rapidly flash off the screen so that you can quickly and easily make an ON-PRESS ink change.
Next, lift the printer arm holding the screen frame that you want to make the color change on so that you are looking at the underside of the screen frame.
Using a paper or cloth towel, squirt some press wash onto the cloth. Working from the underside of the screen, wipe the targeted spot until the ink is removed.
Then, lift the screen and if it still seems to need a little more work, use a cloth to carefully finish wiping from the squeegee side.
Before you start to print, spray the platen with RBA2, a Screenprinting Aerosol Adhesive Spray Mist to help ensure that the t-shirt will remain stable on the platen. For fleece and heavier fabrics, a good choice is RBA3 Adhesive Web.
Now, flood the screen and continue printing.
Once you’ve completed printing the project, card off the ink and head to the washout booth to clean the ink off the screen. The next part of the video will take place at the RhinoClean Washout Booth for an Ink Removal demo using SWG14C-citrus-scented Screen Wash.
Squirt the screenwash onto the screen and begin scrubbing. Scrub on both sides. Very quickly, the ink will begin to emulsify.
With a pressure washer, like the amazing RS1500A, rinse the screen on both sides. To get rid of any residue, apply a bit more SWG145C, scrub and rinse. If you prefer a soy-based product, choose SWG305.
EQUIPMENT AND PRODUCTS SUMMARY:
The manual, textile printer used in the demo is a SureCure 5-4/2 combo Conveyor Dryer/Textile Screen Printer from RhinoTech with a 110V.
The RhinoClean Washout Booth is made of Polypro with an aluminum stand.
Soy-based, SWG305 Screen Wash and SWG145C are excellent options for the final screen wash.
On-Press Wash: PWG122. And, PWG125 is a multi-purpose Press Wash that will also work on card stock, U.V. and Plastisol inks.
Stay tuned for the next in the series that is How-To REMOVE A STENCIL.
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