Common Problems of Screen Printing Machines and Solutions

Check and double-check the screen printing machine before starting your printing business with it to prevent unequal gaps between repeats.

Ink film unevenness:

Bubble formation in the air

Screen printing machines found online may have some significant or minor issues. First, some machines may have severe problems, such as color bleeding, pinholes, unequal repeat gaps, and irregular screen placement. These problems can reduce your printing production and compromise the quality of your screen printing equipment, so you need to find a way to solve this type of screen printing issue.

You can solve the color bleeding problem by using a thick printing paste. Keep a clean screen in every registration. Ensure that the pigment of every registration is stuck to the fabric. Furthermore, you can use chalk to check the repeats. Calculate the screen registration so will unequal gaps will not occur between the repetitions.

Consequently, irregular placement of the screen is another issue. When you can’t start printing accurately on a screen printing machine, it often happens when you fail to check the repeats. If you find any leakage or soiling on the cloth of the screen, mask the edge of the screen with tape.

Additionally, if you apply the pigment unevenly on the screen, color patches will appear on the cloth. To address the color patch problem on the fabric, you can use a large amount of pigment to distribute the paste evenly.

While there are germs and dirt in the mesh, pin-holes may occur during printing on your screen printing equipment. Hence, the germs and dirt block the light from passing through the screen; the mesh should be washed before stretching. On the other hand, pinholes may sometimes occur due to insufficient exposure time on the screen and improper coating of the screen.

I want to propose a few suggestions for addressing other issues with the screen printing machine.

Ink film unevenness:

It occurs due to the bad deployment of the ink on the screen or the regular deployment of ink into the screen. The filter must be reused, and the old ink box and printing plate must be washed thoroughly before use. Sometimes, you may have a problem with the board.

The board may be damaged. To achieve a transparent screen printing result from your screen printing press, the ink needs to be. To prevent damage, you must protect the front side of the board, and the machine should be polished.

Bubble formation in the air:

Bubble formation in printing can occur for several reasons. If your printing process is not good, it may appear. The screen printer should mix the anti-foaming agent with the ink to avoid bubble formation in the air. On the other hand, they can use hot water to prevent bubbles in the air. If you use blue, red, and green color ink, as it is transparent, it will be a good protector for your bubbles.

In the case of a silk screen printing machine, a dirty event like clogging may occur during the drying process. It does occur during the oxidation of the ink. Desiccant cobalt is used to slow down the drying process.