Stop Mixing Your Prints! Why You Must Separate White and Color Designs on DTF Gang Sheets
If you have ever pressed a white-only DTF transfer and noticed that the small text disappeared or the fine lines looked jagged, you are not alone. It is one of the most common frustrations for apparel decorators—and it almost always comes down to how the gang sheet was built.
To get crisp, perfect transfers every time, there is one golden rule you need to follow: You must separate your white-only designs from your full-color designs.
The Secret is the "Choke"
In Direct-to-Film (DTF) printing, white ink behaves differently depending on the design.
For full-color designs, the printer lays down the color inks first, followed by a white ink layer on top. This white layer acts as an "underbase" to make the colors opaque and vibrant on dark shirts. To prevent that white underbase from peeking out around the edges of your design and creating an ugly white halo, the printing software applies a choke. A choke slightly shrinks the white layer by 1 to 2 pixels so it stays safely hidden behind the color.
For white-only designs, there is no color layer to hide behind. The white ink is the artwork. Therefore, white-only designs require zero choke.
Why You Can't Mix Them on the Same Sheet
DTF printing software applies white ink settings to the entire gang sheet at once. It cannot apply a choke to a full-color logo on the left side of the sheet while turning the choke off for a white-only logo on the right side.
If you mix them together, the software is forced to compromise, which ruins one of your designs:
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If the sheet is set for full color (Choke ON): The software will shrink the white ink on your white-only designs. Thin lines will vanish, small text will drop out, and the edges will look weak.
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If the sheet is set for white-only (Choke OFF): Your white designs will look great, but your full-color designs will print with a noticeable, unwanted white outline (halo) around the edges.
The Fix: Create Two Separate Gang Sheets
The solution is simple and guarantees that both types of designs print perfectly. Sort your artwork before you upload and build two separate sheets.
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Sheet 1 (Full Color): Group all of your CMYK full-color designs, photographs, and multi-colored logos onto this sheet.
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Sheet 2 (White Only): Take all of your solid white text, white logos, and single-color white graphics and arrange them on a second gang sheet.
By separating the files, the RVA Transfers print team can run your full-color sheet with the standard underbase choke, and then run your white-only sheet with a specialized, full-opacity white setting that preserves every tiny detail.
Best Practices for Your RVA Transfers Gang Sheets
When you are ready to use the RVA Transfers Online Gang Sheet Builder, keep these final file prep tips in mind to ensure your transfers are ready to press:
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Format Matters: Save all artwork as PNG files with transparent backgrounds. JPGs do not hold transparency and will print with a solid white box around your image.
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Check Your Resolution: Export your designs at 300 DPI at the actual size you intend to print.
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Mind the Gap: Leave at least a ¼-inch gap between your designs on the gang sheet so you have room to cut them apart with scissors or a rotary cutter.
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Pure White: For your white-only gang sheet, ensure the color hex code in your design software is set to pure white (
#FFFFFF).
Taking an extra two minutes to separate your files ensures your prints come off our high-quality i3200 printheads looking sharp, vibrant, and exactly how you designed them.
Ready to build? Head over to the RVA Transfers Gang Sheet Builder to start arranging your separate color and white sheets today!