is thermal inkjet waterproof


Is Thermal Inkjet Waterproof?

Thermal inkjet technology has revolutionized the way we print. It offers a high-quality, reliable and cost-effective way to print documents and images. One of the most commonly asked questions about thermal inkjet printers is whether their output is waterproof. In this article, we will explore the answer to this question and provide some crucial information on thermal inkjet technology.

How does thermal inkjet work?

Before we dive into the topic at hand, let's take a look at how thermal inkjet technology works. Thermal inkjet printers spray tiny droplets of ink onto the paper using a series of microscopic nozzles. The ink is heated and expelled onto the paper in controlled bursts, creating the image on the page.

This method of printing is incredibly precise and efficient, allowing printers to produce high-quality prints at a fast rate. Additionally, thermal inkjet printers are relatively inexpensive, making them accessible to a wide range of users.

Is thermal inkjet waterproof?

The short answer is no. Thermal inkjet prints are not waterproof, as the ink used in the printing process is typically water-soluble. While some manufacturers claim that their inkjet prints are waterproof or water-resistant, this is not always the case.

Why are thermal inkjet prints not waterproof?

The ink used in thermal inkjet printers is typically made up of water, glycol or glycerin, dye or pigment, and a small amount of surfactants. The ink is formulated to work with the specific printer mechanism, offering high-quality prints with accurate colors.

However, these inks are typically not designed for use in environments where they may come into contact with water. The ink is designed to absorb into the paper, creating a permanent bond that allows for sharp and vibrant colors.

When the ink comes into contact with water, it can reactivate, smudge, or even run. As a result, thermal inkjet prints are not waterproof, making them unsuitable for applications where they may come into contact with water or other liquids.

What are the options for waterproof printing?

There are several options available for printing waterproof documents or images. These include:

Pigment-based inkjet printing: Pigment-based inks are more resistant to water than dye-based inks. This type of ink is designed to bond with the paper fibers, creating a more permanent image that is less likely to smudge or run when exposed to water.

Laser printing: Laser printers use toner, which is a powder-based ink. The toner is melted onto the paper, creating a permanent bond that is resistant to water and other liquids.

Thermal transfer printing: Thermal transfer printing uses a ribbon that is heated to transfer ink onto the paper. The ink is typically more durable than inkjet ink, making it a suitable option for waterproof printing.

Lamination: Lamination is an excellent option for protecting prints from water damage. A protective film is applied to the surface of the print, creating a barrier that prevents water from penetrating the paper.


In summary, thermal inkjet prints are not waterproof. While some manufacturers claim that their inkjet prints are water-resistant, the reality is that most inks used in thermal inkjet printers are not designed to withstand exposure to water or other liquids.

If you require waterproof printing, there are several options available, including pigment-based inkjet printing, laser printing, thermal transfer printing, and lamination. By choosing the right printing method for your needs, you can ensure that your prints are protected from water damage, providing peace of mind and ensuring that your work looks great for years to come.


Professional Laser Marking Machine Manufacturer Since 2009. Correct Pack is a technology-based enterprise focusing on the design, development and production of marking and coding products, which are widely used in food, pharmaceutical, daily chemical, hardware and other industries.
Just tell us your requirements, we can do more than you can imagine.
Send your inquiry

Send your inquiry

Choose a different language
Current language:English