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Curing Nylon Ink

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Curing Nylon Ink

The most important aspect of screen printing is achieving a full cure. Listed below are some tips and bits of information that will help you identify problems and create solutions that work.

Determining Dryer Temperature

There are many methods of determining dryer temperature. Infrared guns, temperature probes, thermolabels, and temperature dots are the most common methods used today. The most important thing to understand is that curing ink is a time and temperature process. It does no good to measure the heat if you do not know how long it is heating. One Stroke Inks strongly recommends the temperature probe due to its accuracy and ability to read temperatures all the way through the conveyor dryer. Cure-Rite Temperature Dots work well but they usually require a little more heat than necessary to give a proper reading.

Curing Temperature

Most plastisol inks cure at 320 - 330 degrees fahrenheit. Nylon ink is no different. The entire ink film must reach this temperature to be fully cured. It is common for a screen printer to use an infrared gun and measure the ink temperature as it leaves the conveyor dryer. This temperature tells you nothing. The ink that is at the bottom of the print touching the garment will be a completely different temperature than the top surface of the ink that the gun is measuring. Also, due to the varying thicknesses of garments it is unable to determine a single dryer temperature for all garments.

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