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Mistakes New DTG Printers Make (and How to Avoid Them)

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DTG (Direct-to-Garment) printing has opened the door for small businesses, print-on-demand brands, and creators to produce high-detail, full-color apparel without screens or lengthy setup times. But as simple as “print and press” sounds, DTG is a science involving fabric behavior, fluid dynamics, machine calibration, and polymer curing.

Many beginners struggle during the first few weeks: prints appear faded, white ink starves or clogs, edges blur, or designs crack after a single wash. Most of these beginner issues stem directly from three root causes:inadequate fabric pretreatment,skipped daily printhead cleaning, and incorrect heat-press curing parameters.

DTG Pretreatment

1. Skipping Pretreatment or Applying It Incorrectly

Pretreatment is one of the biggest learning curves in DTG. It helps prevent ink absorption and keeps white ink sitting on top of the fabric rather than sinking into it. Without proper pretreatment, prints will look soft, washed-out, or blurry.

Common beginner mistakes:

Does DTG printing crack?

  • Spraying too little or too much pretreatment

  • Applying unevenly, leaving streaks and blotches

  • Printing before the pretreatment is fully dry

How to Avoid It

  • Use a calibrated sprayer or pretreatment machine for even application

  • Heat press for 15–25 seconds until the surface is dry and flat

  • Test shirt to fabric ratio—different materials absorb differently

A well-treated fabric will show a strong white base and sharper edges.

2. Not Flattening or Preparing the Fabric Surface

What are common issues users report with different dtg print systems? Raw fabric contains lint and tiny fibers that interfere with ink spray patterns. Even high-end DTG printers suffer if printing onto loose fibers or wrinkles.

Why Does DTG Printing Crack?

How to Avoid It

  • Heat-press the garment before printing

  • Use a lint roller on cotton garments

  • Store shirts in a closed container to prevent dust buildup

Proper surface prep takes just seconds but transforms print consistency. If you want to master spraying weights, roller techniques, and heat-press curing curves, follow our complete DTG printing preprocessing step-by-step guide to prepare your garments like a pro.

3. Using Low-Quality or Incompatible Ink

DTG printing issues on cotton-polyester blends: fading and washing. Ink quality determines not only color vibrancy but also wash resistance and print texture. Some low-cost inks contain unstable particles that clog nozzles or produce weak color output.

Better Choice:How to Stop DTG Prints from Fading After Washing?

Select professional consumables that have been validated through extensive practical use:

  • Strong pigment concentration

  • Smooth ink flow with reduced clogging

  • Rich CMYK output and stable white ink opacity

  • Better wash durability

If you choose to use compatible inks, it is advisable to select a high-quality DTG (direct-to-garment) ink with a well-engineered, scientific formulation—it is well worth the investment. Such high-quality alternatives can reduce your consumable costs by 40% to 60%, while offering color vibrancy and stretch resistance that rival those of original manufacturer products.

4. Incorrect or Ignored RIP Software Settings

RIP (Raster Image Processing) controls how ink is layered. Beginners often rely on default settings instead of tuning color density, saturation, or underbase thickness.

The result? Colors that do not match the digital file.

How to Avoid It

  • Increase the white underbase for dark garments

  • Adjust color saturation based on garment color

  • Calibrate screens using ICC color profiles

Think of RIP settings as the “brain” of the print—fine-tuning them transforms the final result.

5. Improper Curing Temperature or Time

Even a perfect print can fail after washing if not cured correctly. Under-curing leads to fading or cracking, while over-curing can flatten inks or scorch garments.

Fix It With:

  • A consistent heat press or tunnel dryer

  • Correct curing time based on ink type

  • Wash testing before production runs

Most DTG inks, including Winnerjet, cure around 150–165°C (300–330°F) for 45–90 seconds, but always test and verify.

Bonus Mistake: Not Performing Regular Maintenance

DTG printers, especially those running white ink, require daily care. Many beginners skip cleaning and later face blocked nozzles or inconsistent spray patterns.

Maintenance habits that prevent damage:

  • Run daily head cleaning cycles

  • Shake white ink bottles before printing

  • Keep the capping station and wiper clean

A few minutes a day saves hundreds in repairs.

For more DTG printing maintenance guides, please download our printable “Standard Operating Procedure (SOP) Guide for DTG Printers and Printheads,” which can be used for tracking and documenting daily maintenance tasks.

Final Thoughts

DTG printing takes practice, but once you master the process, the results are stunning. The key is working with quality materials, fine-tuning settings, and never skipping preparation steps.

Whether you’re just beginning or scaling production, using high-performance supplies makes the process smoother. Winnerjet offers DTG ink, pretreatment, and printing consumables engineered to deliver brighter colors, consistent performance, and dependable wash durability — so you can print with confidence.

Better prints start with better materials — and better knowledge.

📖 Read more: DTF printer for beginners 、A Beginner’s Guide to DTG Printing、Distinguishing DTG Printing

FAQ

Why do my DTG prints crack after washing?

DTG prints crack primarily due to under-curing, excessive white underbase thickness, or printing over unflattened fabric fibers. If the ink resin doesn’t fully cross-link at optimal heat press settings, the ink layer tears when the garment stretches during washing. Follow our DTG ink curing temperature and time guide to calibrate exact heat and dwell parameters.

Yes, but it requires specialized polyester-blend pretreatment and lower curing temperatures (around 140–150°C) with longer dwell times. This prevents polyester dye migration (bleeding) and ensures water-based pigment inks chemically bond with synthetic fibers.

Clean the capping station rim and wiper blade daily using lint-free swabs and cleaning solution to prevent white ink crusting. Flush the drain tubes weekly and wipe the linear encoder strip monthly to ensure optimal reliability. Download our complete DTG printer and printhead maintenance SOP checklist (.docx) for standard daily maintenance procedures.

If the white base prints solid and sharp without soaking in, the pretreatment level is correct.

Absolutely. Ink chemistry impacts vibrancy, flow, and durability. High-quality ink like Winnerjet produces richer colors and reduces maintenance.

Kevin - Winnerjet Senior Consultant
Kevin | Senior Consultant at Winnerjet

19 years of international experience in the inkjet industry. Specialist in matching the most cost-effective consumable solutions for global clients.


Mr. Liu - Winnerjet R&D Expert
Technical Review: Mr. Liu | R&D Expert

12 years of R&D experience. He has led the formula upgrades for various Winnerjet industrial-grade fast-drying inks and is a leading expert in the domestic general printing consumables sector.

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