Tip of the Week: Avoiding Bubbles on Prints

February 12, 2013 at 2:32 pm Leave a comment

Screen-2Ever experienced that your print has ink bubbles?  In a recent printing tip segment published in Impressions, Kieth Stevens explains how to avoid it:

Bubbles can appear in a print for several reasons. They often develop when ink is too thick, or viscous. To resolve this issue, make the ink thinner by using a curable reducer.

Bubbles also may appear after inks are mixed with a high-speed mixer, in which case you should let the ink sit awhile to allow the bubbles to disperse.

Many types of ink contain a blowing agent to help it with texture, low-bleed properties, or body. Over time, the blowing agent may become activated, especially if the ink was stored at high temperatures, and create bubbles. To rid the ink of bubbles in this case, stir it by hand and allow them to disperse, and then add a little bit of curable reducer.

Bubbles also may appear simply because too much ink is deposited. To avoid this problem, use a harder squeegee to transfer less ink, or adjust the squeegee pressure.

Kieth Stevens is the Western regional sales manager for International Coatings. He has been teaching screen printing for more than 10 years and is a regular contributor to International Coatings’ blogs. For more information, visit iccink.com and read the company’s blog at internationalcoatingsblog.com.

For more info on curable reducers, please go to http://www.iccink.com/pdfs/Plastisol%20Reducers-10-06-10.pdf

International Coatings manufactures a complete line of phthalate-compliant screen printing inks, including a wide variety of whites, specialty inks, special effects inks, color matching systems, additives and reducers.  For more information on our products, please visit our website at www.iccink.com.

   International Coatings:     The Intelligent Choice

Advertisements

Entry filed under: General, Printing Tips. Tags: , , , , , , , , , , , , , , , , , , , , , .

Top 5 Considerations for Color Communication Combat Dye Migration

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Trackback this post  |  Subscribe to the comments via RSS Feed


Image of the Month

"Gellusion" Atom Print

"Gellusion" Atom Print

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 1,256 other followers

Recent Posts

Visit us on Facebook

Categories


%d bloggers like this: