Hi,
Always working in ventilated areas should take care of your workers with asthma and just everyone in general. Wear chemical resistant gloves when handling the chemicals.
The cracking ink issue is from the prints not being fully cured. The ink must reach curing temp, for plastisol that's usually 320 degrees through the entire depth of the print.
So for a thinner or limited number of color print or using higher mesh count, you will be laying less ink down and curing will be achieved in less time. You definitely want a infrared temp gun to test often. Also doing the stretch test on a few of your prints, you know, just taking them and stretching the print...if it cracks, it's not fully cured.
I highly suggest that you get the Ryonet silkscreening 101 dvd...packed full of info.
It will help you a lot.
Always working in ventilated areas should take care of your workers with asthma and just everyone in general. Wear chemical resistant gloves when handling the chemicals.
The cracking ink issue is from the prints not being fully cured. The ink must reach curing temp, for plastisol that's usually 320 degrees through the entire depth of the print.
So for a thinner or limited number of color print or using higher mesh count, you will be laying less ink down and curing will be achieved in less time. You definitely want a infrared temp gun to test often. Also doing the stretch test on a few of your prints, you know, just taking them and stretching the print...if it cracks, it's not fully cured.
I highly suggest that you get the Ryonet silkscreening 101 dvd...packed full of info.
It will help you a lot.