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screen printing => Ink and Chemicals => Topic started by: Dottonedan on February 13, 2020, 08:55:11 AM

Title: HSA inks and Separations
Post by: Dottonedan on February 13, 2020, 08:55:11 AM

HSA inks and Separations

Are these inks just more opaque than regular water base? Do you treat them a little differently in the Separations than regular water base? For example do you let the top colors run over the under base to the shirt color like you might with plastisol inks

Title: Re: HSA inks and Separations
Post by: BP on February 13, 2020, 09:50:11 AM

Dan, the HSA's are a high solid acrylic that are more opaque they plan water based ink. And yes we do the seps just like plastisol.

Title: Re: HSA inks and Separations
Post by: ericheartsu on February 13, 2020, 10:16:45 AM

they tend to have less gain than plastisol, so you do need to change your seps to accomodate that.

Title: Re: HSA inks and Separations
Post by: Dottonedan on February 13, 2020, 02:41:06 PM

Thanks guys!   Good to know. I just did a job and found out they were using HSA. Didn't know exactly how to handle that one (haven't used them in our shop) but I think I'll make it.

Title: Re: HSA inks and Separations
Post by: Colin on February 13, 2020, 02:46:09 PM

Color blending on press can be different compared to plastisol.  Especially with color reduction.

These inks tend to "flash" while printing due to the heat from the platens evaporating the moisture content of the ink layer.

Title: Re: HSA inks and Separations
Post by: Dottonedan on February 13, 2020, 03:26:07 PM

Hmmm.   I do a ton of blending, so that could affect the outcome.  Good to know.