How to deal with the cracking of acrylic plate silk screen?

Acrylic screen printing is short for screen printing. The screen is a printing plate made of a silk fabric synthetic fiber fabric or a metal wire mesh stretched on the screen frame by hand engraving paint film or photochemical plate making. In the process of silk screen printing, acrylic sheet cracks are often encountered, so how to avoid it?

Possible problem areas

One of the cracks in the screen printed acrylic sheet may be a problem with the sheet, and the other may be a problem with the ink used in the screen printing.

If the crack is caused by the poor quality of the plate, we can find a piece of leftover material that has been screen-printed before and does not appear to be cracked. Use the same ink system to screen. If there is no crack, then the quality of the plate is not good.

It may also be that the sheet has too much moisture. You can try to bake the acrylic sheet at 60 degrees for 30 minutes and then print it on the silk screen.

If cracks still appear, it may be the cause of the ink.

Different processing methods of casting plate and extruded plate in silk printing

Acrylic sheets can be divided into casting sheets and extruded sheets in terms of technology. These two kinds of sheets have different precautions when screen printing.

The following points must be paid attention to in the extruded plate screen printing process

Laser cutting can not wipe 718 and other solvent chemicals, and the production process of the specification sheet must be changed, such as cutting directly or cutting after printing;

1. Different brands of chemical products and inks may have an impact, and testing before mass production can avoid such situations;

2. The printed product should be placed in a ventilated or forced ventilation environment to make the ink dry as soon as possible.

Casting plate silk screen burst

Under normal circumstances, this phenomenon will not occur in the cast plate, but it may happen to the screen printing mirror oil or gold oil and other toner powder inks. In principle, the screen printing plate cannot be used for fire polishing. After the fire polishing, the plate uses solvent chemicals Wiping may crack;

In case of high cost of thick plate cracking and large scrap loss, you can try to use industrial air ducts to lightly blow the plate surface to repair. Strictly follow the operation process to avoid the phenomenon of screen printing cracking of the cast plate.