Direct-to-Garment (DTG) printing performs best on 100% natural fibers, with cotton being the ideal choice. Ring-spun cotton provides the smoothest surface for high-resolution details. Blends (such as 80% cotton and 20% polyester) also print beautifully, but higher cotton percentages yield brighter colors and better wash longevity.

When cured correctly, a DTG print is highly durable and will last for dozens of washes. To ensure longevity, the ink must be properly cured under a heat press at 160°C-165°C for 90 seconds. For washing, we recommend turning the garment inside out, washing in cold water, and avoiding harsh bleaches or high-heat tumble dryers.

Pre-treatment liquid is required only when printing on dark or colored garments that require white ink. It acts as a barrier that prevents the wet white ink from sinking into the fabric fibers. For printing CMYK ink directly onto white or very light pastel cotton shirts, pre-treatment is optional and usually not required.

The cost varies based on the design size and color saturation. For a standard A4-sized full-color design printed on a dark t-shirt (which requires both pre-treatment and a white ink underbase), the combined ink and pre-treatment cost is usually under $1.20. Light garments without a white underbase cost less than $0.40 per print.

Yes, the platen height is adjustable up to 8cm (or 15cm depending on the custom platen height setting). This height clearance allows you to easily feed thick hoodies, canvas tote bags, denim jackets, and baby onesies onto the printing surface without printhead interference.

The GNFEI A3 DTG printer has an integrated automatic white ink circulation system that runs periodically to prevent the pigments from settling. For manual maintenance, we recommend performing a printhead nozzle check and running a quick software clean cycle if the printer has been idle for several days. A simple wipe of the capping station takes less than 5 minutes once a week.

Yes. The printing system features dual channels dedicated specifically to white ink, alongside the standard CMYK channels. This setup allows the machine to print a solid white base coat first, immediately followed by the color pass, enabling vibrant designs on dark fabrics.

The most recommended file format is a high-resolution PNG with a transparent background at 300 DPI. You can also import JPEG, PSD, AI, or PDF files into the RIP software. However, using transparent PNGs ensures that white ink is only printed where your design elements are, saving ink and improving the feel of the garment.

Yes, RIP (Raster Image Processor) software is essential for DTG printing. The GNFEI A3 printer comes bundled with dedicated RIP software. This software translates your digital design into exact coordinates for the printhead, adjusts the ink volume limits, and automatically builds the white ink underbase layer from transparent pixels.

For a standard resolution print, a full A3-sized print on a white shirt takes approximately 90 seconds. Printing on a dark garment, which requires printing the white base layer first and then the color layer, takes roughly 150 to 180 seconds. You can adjust the print resolution in the RIP software to trade speed for finer details.

The printer has a compact footprint of 80 x 70 x 60 cm and a net weight of approximately 81 kg. It fits comfortably on a standard, sturdy craft table or workbench. Because of its weight, it is highly stable during high-speed printing, minimizing vibrations that could cause print alignment errors.

Traditional DTG pigment inks are designed for natural cotton fibers and will not adhere permanently to synthetic polyester. However, the GNFEI A3 printer can easily double as a **DTF (Direct-to-Film)** printer. You can print your design onto a PET film, apply hot-melt adhesive powder, cure it, and heat-press it onto 100% polyester garments with incredible durability.

Yes, the water-based pigment inks used in the GNFEI DTG printer are eco-friendly and non-toxic. Once cured, they are completely odorless, safe for children's wear, and meet international standard safety guidelines for textile contact. They are also soft against the skin, unlike heavy plastisol screen prints.

Apart from the computer used to run the RIP software and the printer itself, you will need: 1. A standard heat press machine (at least 38x38 cm) to press dry the pre-treatment and cure the printed shirts. 2. A simple hand-held liquid sprayer (such as an airbrush or pump spray bottle) to apply the pre-treatment liquid evenly.

No, there is absolutely no minimum order requirement. Because there are no physical screens or costly print plates to set up, you can print a single, custom one-off T-shirt with the same ease and cost-efficiency as printing a batch of 50. This makes it perfect for on-demand print shops, customized gifts, and boutique brands testing new designs.