Choose the right pad printing ink,We'll start with the creation of pad printing inks.Unlike general inks, inks do not include solvents that canYou get more ink per can, and instead of guessing how much solvent is already in the can, you can add as much as you want.
Now that we have such a way, the inks ready to print include:
pigment: Available in powder form - this gives the ink its color and opacity
solvent: Allows the resin and pigment mixture to be transferred to the substrate during the printing process
resin: Form finished ink
additive: Improve flexibility, fluidity and pigment stability
Knowing all of this, here are a few things to consider when choosing the right ink for your substrate:
1. Determine what your substrate is made of;
One, if not an important factor, in deciding what pad printing ink to use is that you need to understand what your substrate is made of.Different inks attach to different substrates, so skipping this step and ordering ink without doing your research may result in a failed print.Fortunately, most companies will ask you what you want to print right away, or have you send the substrate in for an adhesion test.
2. Resistance to chemical wear;
If you're going to use certain chemicals to clean your substrate, you'll need an ink that can withstand that wear and tear.For example, if your substrate is going to be cleaned with alcohol, you'll want an ink that will stick without peeling or discoloring.Also, if you are printing an item that needs to go in the dishwasher, you need to take this into account.Dishwasher is the harshest print because you are mixing detergent, lye and hot water.
3. Gloss;
Another component of choosing the right ink is deciding whether you want a glossy or matte look.
4. Drying speed;
Drying speed or evaporation rate is only one factor if you need your product packaged and shipped immediately or if the material needs to be stacked.
5. Special application - silica gel;
Inks for printing on silicone are tricky.Not only does it have to adhere well to the substrate, it also needs to pass a test for flexibility — being able to stretch and bend without cracking.These inks are usually cured to ensure better durability.
6. Medical grade;
For applications where the ink may be ingested, it is important to use inks that do not contain any heavy metals, and there are other limitations.All toxicity levels are strictly controlled.
