TSB

screen printing => Screen Making => Topic started by: ZooCity on March 23, 2015, 01:53:58 PM

Title: Saati PHU Red on Starlight 3140
Post by: ZooCity on March 23, 2015, 01:53:58 PM

Anybody have some ballpark expo times?  Testing this week. 

Title: Re: Saati PHU Red on Starlight 3140
Post by: ericheartsu on March 23, 2015, 02:21:55 PM

Quote from: ZooCity on March 23, 2015, 01:53:58 PM

Anybody have some ballpark expo times?  Testing this week.

im pretty sure the starlight is on par with our back panel on the STE. We typically expose big blocky images between 6-8 seconds. Really fine halftones (65lpi) we are usually using our front LED bar, but we've also had some success doing it for 1 second.

All screens coated 1/1.

Title: Re: Saati PHU Red on Starlight 3140
Post by: 244 on March 23, 2015, 04:41:35 PM

Quote from: ZooCity on March 23, 2015, 01:53:58 PM

Anybody have some ballpark expo times?  Testing this week.

Photopolymer will be around 5 seconds

Title: Re: Saati PHU Red on Starlight 3140
Post by: ZooCity on March 23, 2015, 05:46:41 PM

I just looked at the first test and a 180/48 coated 2/1 thin/sharp edge resolves 7 solid steps on a Stouffer greyscale in about 20s.   Keep in mind this is with glass in the unit and film, not CTS style.

There must be something different in the PHU to a typical photopolymer though since it has such high reported water resistance.