DTG Pre-Treatment Guide: Perfect Results Every Time

If you’re printing on dark garments or using white ink, pre-treatment is one of the most important steps in the DTG (Direct-to-Garment) printing process. Done correctly, it ensures vibrant prints, crisp details, and long-lasting results. Done poorly? You’ll end up with faded, cracked, or uneven prints.

In this complete guide, you’ll learn everything you need to know about DTG pre-treatment—including best practices, equipment, and pro tips for getting perfect results every time.

What Is Pre-Treatment in DTG Printing?

Pre-treatment is a liquid solution applied to garments before printing with white ink. It allows the ink to:

● Sit on top of the fabric (instead of soaking in)

● Adhere better to the fibers

● Produce brighter, sharper colors—especially on dark fabrics

Without it, white ink prints will appear dull or won't stick at all.

When Do You Need Pre-Treatment?

✅ Required for:

● Black and dark-colored garments

● Any print that uses white ink underbase

 Not required for:

● White and light-colored shirts with no white ink

 Want a printer that handles both light and dark garments with ease? Check out theMTuTech DTG Printer.

Pre-Treatment Methods

1. Spray Bottle (Manual)

● Cheapest option for beginners

● Requires practice to get even coverage

● Prone to overspray and inconsistency

2. Pre-Treatment Machine (Recommended)

● Applies a smooth, consistent layer automatically

● Saves time and reduces waste

● Professional results for bulk or commercial use

If you're producing more than a few shirts per day, invest in a pre-treatment machine to improve quality and workflow.

Step-by-Step Pre-Treatment Process

Step 1: Shake and Mix

Shake the pre-treatment fluid well before pouring. Stir if using large containers.

Step 2: Apply Evenly

Use a spray or machine to apply a smooth, even coat—about 18–24 inches from the garment.

Step 3: Flatten the Fibers

Use a heat press to press the shirt at 160°C (320°F) for 30–45 seconds. This flattens the fibers and dries the pre-treatment.

 Tip: Use parchment or kraft paper to prevent sticking.

Step 4: Let It Cool

Allow the garment to cool completely before printing. This prevents steam from interfering with ink bonding.

How Much Pre-Treatment Should You Use?

The amount depends on:

● Garment type (cotton vs. blends)

● Color (darker shirts need more)

● Brand of pre-treatment solution

 Rule of thumb: Use 16–20 grams per shirt. Test and adjust for your fabric type.

Common Pre-Treatment Problems (and Fixes)

Choosing the Right Pre-Treatment Solution

There are many brands available. Choose one that:

● Matches your DTG ink brand

● Works well with your printer

● Doesn’t discolor after curing

✅ TheMTuTech DTG Printer is compatible with most major pre-treatment solutions and produces outstanding results with minimal effort.

Final Thoughts

Mastering DTG pre-treatment is essential for consistent, professional-quality prints—especially on dark apparel. With the right tools and techniques, you’ll get bright, long-lasting results every time.

Ready to take your DTG printing to the next level?

Explore the MTuTech DTG Printer – Built for Vibrant Prints and Easy Workflow.