Check and double check the screen printing machine before starting your printing business with it to prevent unequal gaps between repeats.
Screen printing machine found in the online may have some big or small problems. First of all, Some machines may have serious problems like color bleeding, pin holes, unequal gaps of repeats, irregular placement of screens etc.As a result, it would reduce your printing production and quality of your screen printing equipment. So you must need to find a way out to solve this kind of screen printing problems.
You can solve the color bleeding problem if you use thick printing paste. Keep the screen clean make in every registration to make sure that the pigment of every registration is stick with the fabric. Furthermore, you can use a chalk to check the repeats. If you can’t calculate the registration of the screen, unequal gaps will occur between the repeats.
Consequently, irregular placement of the screen is another kind of problem. It is found when you can’t start printing on a screen printing machine accurately. It happens when you fail to check the repeats. If you find any leakage or soiling of the cloth of the screen, you must need to mask the edge of the screen with tape.
In addition, if you use the pigment unequally on the screen, color patches will happen on the cloth. To remove the color patch problem of the cloth, you may use a large amount of pigment to distribute the paste evenly.
while there are germ and dirt in the mesh, pin-holes may occur during printing on your screen printing equipment. Hence the germs and the dirt’s block the light to pass through the screen, the mesh should wash before stretching on the screen.On the other hand, sometimes pin-holes may occur for insufficient exposure time on the screen and coating of the screen.
I would like to place a few suggestions for some other problems in the use of screen printing machine.
Ink film unevenness:
It occurs for bad deployment of the ink on the screen or for normal deployment ink into the screen. To prevent this problem, the filter should re-use and must remove the old ink box. The printing plate needs to wash fully before use. Sometimes you may have the problem with the board. The board may be damaged. To get a transparent screen printing from your screen printing press, ink unevenness needs. To prevent the damage, you must have the protection of the front site of the board and the machine should be polished.
Bubble formation in the air:
Bubble formation in the printing may happen for many reasons. If your printing process is not good, it may occur. The screen printer should mix the anti-foaming agent with the ink to avoid the 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, green color ink as it is transparent, it will be a good protector for your bubbles.
In the case of silk screen printing machine, the dirty event like drying may happen. It does occur for oxidation of the ink. Desiccant cobalt can be used to reduce the speed of dryness.