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Bleeding on white underbase

6.8K views 6 replies 5 participants last post by  Tj Ryonet Tech  
#1 ·
I'm having issues with my cardinal and black inks when printing on a white underbase on a dark garment. I have an automatic machine and I print a white underbase and once flashed my next color bleeds and does not give me nice clean lines. The design is not covering the underbase but rather printing on top so u still have a white border. I have allowed a cooling station and tried a couple different inks too. Does anyone have a answer to my problem. I emulation my screens 1 shirt side, 1 squeege side in that order. Could it be a stencil issue? Could it be the white ink is still hot? Please help, it is ruining the quality of my designs. Nothing has clean lines. I really appreciate anything you can give me.
 
#2 ·
Hi,
Yes, first off, if you're ending up with a white border, you need to choke your white base a couple of pixels before you print your film.
I'm thinking for your ink issue, that :

1. could be that you're flashing too long and actually curing the white base.
2. ink could be too hot when you're printing your top colors.
3. Combination of # 1 and 2.
 
#3 ·
Thx, I'm still different combinations to use, the white border is suppose to be there it's like printing a name in a white circle I was just trying to get the point across. I am definately flashing a long time, shouldn't I flash until no white cones onto my fingers to touch.
 
#4 ·
It seems like you are saying that you're printing red words with a white outline/border and the red is going on top of an underbase that includes the white outline/border as well? Sort of like killing two birds with one underbase white?

Well if that is the case the underbase should have a gutter (negative outline) that separates the underbase from the outline/border so when the red is printed, it falls into the gutter and butt registers with the outline/border.

Currently you a doing a trap, you're trying to simulate the outline with the red on top and the red is smearing.

To lineup colors side by side when screen printing use butt registration.
 
#5 ·
I'm tring to print a logo that has a white rectangle with a 1/2 inch white border and the logo inside the white with a cardinal and gold logo butting up with each other. The white goes down, then cardinal then gold. White flash, cardinal flash, then gold. However after the white the cardinal Is bleeding into the gold butt, and on the opposite side where the white is it is ugly because it it bleeding maybe a pixel or 2 but it's not a sharp edge like I want it to be for quality control. It only happens once and a while on my designs.