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SCREEN PRINTING

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Find all the assembly guides, files, and general documentation related to our screen printing products.

Troubleshooting Guides


Identify your problem and find a solution to the most common questions we've been asked on our machines.

Stencil Issues

Identify the problem: 
You printer is leaving big stains on your transparent film or your stencil is not as precise as you would like it to be.

Possible origins:
Three possible origins:

- you are printing on the wrong side of your transparent film

- you're trying to use a laser transparent film into an inkjet printer or vice-versa

- your file isn't of good quality enough for the size of the stencil

Solution:
First, check your file. If it is a pixellized image, please verify that your resolution is big enough for what you're trying to achieve.

Second, try to turn your transparent film around and try printing on it again.

Last, check the transparent films you ordered and verify if they're supposed to be compatible with your printer. If it is the case, contact your supplier to find a solution or try sourcing your transparent films from another brand.

Identify the problem: 
You can't print your stencil on your transparent film.

Possible origins:
Two possible origins: one is that you are printing on the wrong side of your transparent film, the other is that you're trying to use a laser transparent film into an inkjet printer or vice-versa

Solution:
First, try to turn your transparent film around and try printing on it again.

Second, check the transparent films you ordered and verify if they're supposed to be compatible with your printer. If it is the case, contact your supplier to find a solution or try sourcing your transparent films from another brand.

Coating Issues


Identify the problem: 
You can recognize an irregular emulsion layer when you see waves on your screen. 

Possible origins:
It simply means that you didn't go all the way to the top of your screen with your scoop coater in one movement. The result is that your emulsion layer doesn't have the same thickness everywhere, which will mess with your exposition.

Solution:
Everything is in the gesture: it needs to be sharp and precise. Go check our tutorial if you need to see how to make it correctly.


Identify the problem: 
You can recognize a too thick emulsion layer if it makes bubbles while drying, if it is irregular or if your emulsion didn't stay after 4 minutes exposition with our exposure kit. 

Possible origins:
Two possible origins: one is that you didn't remove the black rubber parts of your scoop coater, which are only there to protect it during transport. The other is that you don't master the coating movement yet.


Solution:
If you didn't expose your screen yet, just clean it with water and a sponge. If you realized you have a problem after exposing it, you need to reclaim it. Then you can coat your screen again : 

If you forgot to remove the rubber parts, juste remove them and try again.

If not, go check our tutorial again. Everything is in the gesture: it needs to be sharp and precise. 

 


Identify the problem: 
After letting your screen dry, you can see bubbles of emulsion on the outline of your mesh or even in the middle of it.

Possible origins:
There's only one possible reason for this to happen: your emulsion layer is too thick.

Two possible origins: one is that you didn't remove the black rubber parts of your scoop coater, which are only there to protect it during transport. The other is that you don't master the coating movement yet.

Solution:
If you didn't expose your screen yet, just clean it with water and a sponge. If you realized you have a problem after exposing it, you need to reclaim it. Then you can coat your screen again : 

If you forgot to remove the rubber parts, juste remove them and try again.

If not, go check our tutorial again. Everything is in the gesture: it needs to be sharp and precise. 

Exposure Issues

95% of exposure issues are due to a bad coating. Please check if you recognize your screen in one of the situations above before going further.
If you're trying to print very fine details, you should definitely use an Exposure Calculator to calculate your exact exposure time.


Identify the problem: 
You can see a faded version of your stencil on the screen but it can't let ink pass through.

Possible origins:
Your screen is clearly overexposed. There are several possible reasons for that:
- you didn't respect the exposure timing and your emulsion is overcooked
- you didn't respect the exposure unit distance and your emulsion is overcooked
- your transparent film wasn't pressed enough against your screen and light went underneath it
- your screen was exposed to light while drying

Solution:
First, make sure your transparent film is well pressed on your screen by using a plexiglas plank or transparent scotch.
Then, verify the distance of your exposure unit to your screen. With our kit, it should be around 60 cm.
Last, make sure to follow the timing instruction precisely. Emulsion can be overcooked with not more than 15 seconds over timing.

 


Identify the problem: 
You can easily recognize this problem: the emulsion peals off your screen when you reveal it, damaging your stencil.

Possible origins:
This is typical of an underexposed screen. There are several possible reasons for that:
- you didn't respect the exposure timing and your emulsion is overcooked
- you didn't respect the exposure unit distance and your emulsion is overcooked
- your emulsion layer wasn't dry enough
- your emulsion layer was too thick

Solution:
95% of exposure issues are due to a bad coating. Please check if you recognize your screen in one of the situations above before going further.
First, make sure your screen is dry enough by touching it: it should not by sticky at all. Usual drying times goes from 3 to 12 hours depending on your room temperature and humidity.
Then, verify the distance of your exposure unit to your screen. With our kit, it should be around 60 cm.
Last, make sure to follow the timing instruction precisely. Emulsion can be undercooked with not more than 15 seconds over timing.


Identify the problem: 
You can recognize this pattern on your screen right after revealing it, or after it dryed.  

Possible origins:
This is typical of an underexposed screen. There are several possible reasons for that:
- you didn't respect the exposure timing and your emulsion is overcooked
- you didn't respect the exposure unit distance and your emulsion is overcooked
- your emulsion layer wasn't dry enough
- your emulsion layer was too thick

Solution:
95% of exposure issues are due to a bad coating. Please check if you recognize your screen in one of the situations above before going further.
First, make sure your screen is dry enough by touching it: it should not by sticky at all. Usual drying times goes from 3 to 12 hours depending on your room temperature and humidity.
Then, verify the distance of your exposure unit to your screen. With our kit, it should be around 60 cm.
Last, make sure to follow the timing instruction precisely. Emulsion can be undercooked with not more than 15 seconds over timing. 


Identify the problem: 
Some of your details are missing on your exposed stencil, or the remaining emulsion seems thick or fragile.

Possible origins:
The most probable reason for this is that your emulsion coating is too thick. Two possible origins: one is that you didn't remove the black rubber parts of your scoop coater, which are only there to protect it during transport. The other is that you don't master the coating movement yet.

Solution:
If you forgot to remove the rubber parts, juste remove them and try again.
If not, go check our tutorial again. Everything is in the gesture: it needs to be sharp and precise.  

Printing Issues


Identify the problem: 
Your stencil seems fine but the ink can't go through and only a part of your image is printed. 

Possible origins:
There are three main possibilities here :
- you didn't coat your screen with ink before printing
- your ink dryed into your mesh
- a thin layer of emuslion is still staying on your screen and you didn't notice it 

Solution:
If you didn't check the ideal printing process, please go see our tutorial here to understand why you need to print in two times. 
If you're using the right printing process, the first thing to do is to clean your screen entirely with water, to remove possible dryed ink. You can then analyze your screen through light to see if something is stuck on the parts where the printing didn't work. If the problem was coming from dryed ink, it means you need to work in a more rapid way without leaving ink in your screen without touching it for too long.
If you can't see anything, there's a good probability that the problem comes from the revealing. Reclaim your screen and start the all process again, but this time use a sponge and make sure there's no residual emulsion on your stencil. 

Identify the problem: 
Your white ink went through your screen but the result isn't opaque. 

Possible origins:
That's totally normal, printing white on dark fabric is the most technical type of one color printing. 

Solution:
Make sure you're using a well-covering white ink (like our white ink for dark materials, as opposed to our white ink for mixing purposes).
If so, you'll need to print in two or three times: make one pass, move your screen up, use hot pulsed air to dry your ink while making sure that the screen and the fabric don't move, than print a second pass or even a third if you still see some transparency. 

Identify the problem:  
Your previous prints were successful but now your stencil seems fine but the ink can't go through and only a part of your image is printed. 

Possible origins:
Only one possibility: the ink dryed in your mesh.

Solution:
Clean your screen entirely with water, to remove possible dryed ink. You can then analyze your screen through light to see if something is stuck on the parts where the printing didn't work. When you start again, it simply means you need to work in a more rapid way without leaving ink in your screen without touching it for too long.                      

Identify the problem:  
You ink seems way more thick than the consitence you usually observe on screen printing videos. 

Possible origins:
It means you need to work it before using it.

Solution:
To work an ink, stir it with a mixing stick for 3 to 5 minutes. If it still seems too thick, you can add a bit of water and mix again (only in water-based ink like the one we sell).                      

Screen Reclaiming Issues


Identify the problem:  
You can't remove the emulsion from your screen.

Possible origins:
Two possible reasons:
- you didn't humidify the screen before applying your emulsion remover
- your water jet hasn't enough pressure

Solution:
It is crucial to humidify your screen before applying your emulsion remover. If you don't and you wait long enough for the emulsion remover to dry on your screen, it will have the opposite effect and fix the emulsion. Only one solution here: a high pressure washer and a lot of patience, reclaiming your screen bit by bit.
If however you did humidify your screen and left the emulsion remover to act for at least a minute on both side, it means you need to access a water jet with more pressure.


Identify the problem: 
You can still see some of your images on the screen, even after reclaiming it successfully. 

Possible origins:
It's totally normal, it's called "ghost images": it's actually the mesh itself that got colored by your ink, but it won't prevent the ink to go through. 

Solution:
There's nothing to do about it. If at some point you realize that after several different images your screen starts to be harder to use, you can use a "ghost images remover", which is a very corosive product but works perfectly to remove anything from your screen. 

Press Issues

Identify the problem:  
Your screen goes down by itself without managing to stay in "up" position.

Possible origins:
There are several possible origins here :
- your springs are not tightened enough

- you're using a heavy screen

- you're leaving your squeegee on the screen without putting it against the head of the press

Solution:
First, try to fasten the screws of your springs to make sure they are are their maximum tension. You can even rotate the springs to add or remove tension. Then check if the screen can stay up by modifying your squeegee position on it. Finally, try to hold only your screen on the press. If it doesn't work, it probably means it is too heavy for this press.
 


Identify the problem: 
While printing on hoddies or thick fabrics, you can get your screen down to touch your fabric.  

Possible origins:
It's totally normal, that's why we made the press modular :-)

Solution:
There are two parameters you can work on here :
- there's a notch below the printing plate to leave some space for extra fabrics
- you can slide your printing plate along the aluminium profium to leave more space between the head of the press and the printing plate, allowing more spare for extra fabrics as well.

Contact The Support Team


Still need help?
Send us a message using the form below and give us a detailed explanation of your problem, ideally including pictures, so we can assist you the best way possible.