Many industrial inks contain a form of wax – except those that are used in lamination or are going to be coated with something else. Wax provides the ink with an element that makes it resistant, whether it’s water, scratch or rub resistant. There are both natural and synthetic waxes available as additives for industrial ink, and they come in various forms. These range from varnish to a micronized powder. Let’s take a look at the effects of wax additives:
- Water Resistant: this is one of the most critical aspects of wax additives, and one of the main reasons why wax is used as an additive in the first place. If it’s temporarily water resistant, it can only be repellent for a certain amount of time, whereas completely waterproof means that the ink will be resistant infinitely.
- Abrasion Resistance: many things can cause the erosion of a material – wear and tear, scraping, rubbing or scratching. Abrasion resistance works to combat this actively and takes into account elements like hardness, toughness, strength, elasticity, and thickness. Ultimately, the goal is to prevent abrasion.
- Texturizer: wax additives can make a material resistant to slip. While this particular feature of a wax additive is usually only used in coatings, it can certainly be used in the industrial ink to create a rough, slip-free ink.
- Slip Aid: the opposite of this is making the surface smooth and slippery. This is sometimes required in an industrial ink, and it’s so that the surface can glide smoothly alongside other materials without causing any damage. The harder the wax, the smoother it will be.
- Anti-Blocking: anti-blocking is sort of like creating friction so that two surfaces remain resistant to one another and avoid getting stuck together. This kind of effect is used in products that are coated and dried and then immediately stacked in rows for shipment.
The wax that is used in inks comes in three categories: animal, mineral, and vegetable. Because it is used in the food industry, it is required to be food grade at times. Different types of waxes include paraffin, carnauba, amide, and PTFE.
Wax is a standard component of industrial ink and is used for a variety of purposes to create different outcomes in composition. It is an essential part of the ink production process.