How to solve the problem of fastness of thermosetting ink printing

1, with a round bottom, because the rounded hot solid ink is easily melted when the high temperature melting, so the ink flow penetrates into the gap inside the cloth, when the ink cools down with the fabric to form a whole, which firmly tied with the roots The same reason can not be pulled out in the mud, but the right angle will not flow due to the high temperature, so it is somewhat less fast, but because of the right angle of this performance, it can print a knife-like right angle effect, and round Corner ink can't do it.

2, according to the principle of the first article to analyze, if you dilute the ink or hard scraping with a thin plate, so that the ink is certainly easier to enter the gap in the cloth, so use a thin plate to force scratching or dilute the ink are beneficial to enhance The firmness between the ink and substrate.

3. The drying temperature and time directly determine the success or failure of thermosetting ink printing. Thermosetting inks are thermoplastic inks. It is difficult for resins and plasticizers to completely polymerize without reaching the required temperature and time. The ink system is not very compact, but loose. Fingers buckle will appear to be pinched down little by little, so let alone fastness. Some printing manufacturers dry the ink to the surface with brightness. It is considered to be fast, and it is completely wrong. It is very easy to light up the brightness. For example, using a firearm to blow a high temperature for ten seconds has good brightness, but this is the result of surface plasticization. In fact, it has no plastic inside. In other words, there is no fastness at all. In general, the high-temperature thermosetting ink plasticizing temperature is 180 degrees for 3 minutes, the medium temperature is 160 degrees for 3 minutes, and the low temperature is 135 degrees for 90 seconds. However, the drying ovens of different manufacturers may not be consistent, and The thickness of the pattern requires different barbecues, so this data is only for reference.