[Blacksheepdesign]

I have a quick question pon the simulated process do you flash the white under base before doing wet on wet?

 

[macmiller]

yes you do

 

[Celtic]

agreed. You need to flash you white and then do you following colors wet on wet.

 

[PhilR]

I'm curious, is there any advantage to printing wet on wet other than saving time?

 

[sben763]

Printing wet on wet with simulated process mixes the inks to create other colors. This is the advantage of simulated process. I will sometimes flash between colors that don't mix and a lot of times I flash before black depending on the design.

 

[foot print]

Always flash the white under.. Also print order is very important because printing colors out of sequence will give you different results. Best way to take the guess work out of the print order is to write down what order your separation software put it in. Also screen mesh comes into play. I prefer white under on a 140/160 mesh and the rest of the colors usually on a 200 depending on the detail but for me 200 is usually a pretty safe bet.


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[TableSyrup]

I've never done this, but am about to with my studio/label logo

So, with Wet on Wet on these, don't your screens build up and start 'bleeding'???

How many prints can you do before having to clean up the screen???

 

[sben763]

A single flood and 1 or 2 strokes is important just enough to clear screen when doing wet on wet or you can end up with mud. Build up is not much an issue unless your overflooding screen. I've run 100 at a time without issue. Most our simulated jobs are smaller usually not more than a 100.

I separate manually most the time and usual print order will be light to dark.

 

[hazeremover]

So, with Wet on Wet on these, don't your screens build up and start 'bleeding'???

A little ink build up on the screens is ok, especially when printing detail heavy sim pro art that requires 7 or more inks. In addition to the actual wet on wet blending and mixing of colors - the core physics of simulated process - some print sequences can be engineered, at the color separation stage, to intentionally have a given screen "step" on certain areas to assist in achieving a desired result.

Successful wet on wet sim pro (as well as basic spot color artwork) relies heavily on proper screen tension. When nice and tight medium/high mesh counts are used, stopping to wipe the bottoms of the screens will be kept to an absolute minimum, even on high volume auto print runs. Keeping an eagle eye on your print for changes in detail crispyness will alert you as well. Like sben763 says, single floods and minimal strokes will also guarantee success. Of course the usual suspects also come into play such as proper off contact, level boards, squeegee durometer, ink viscosity, etc. so every design will have it's own reproduction/color sep parameters.

Ink mucking and bleeding can result from a low tension screen, excessive squeegee pressure, improper off-contact and again, overflooding. The inks gotta go somewhere. Smash and flash is no way to screen print!