15
Dec
Taking the common Epson L1800 model as an example, its print head is equipped with 6 rows of nozzles, each with 90 holes, totaling 540 nozzle holes. Generally, the more nozzles, the higher the printing speed and accuracy. However, if the nozzles become clogged, it will affect the output quality. Due to the corrosive nature of the ink, and the fact that the print head contains plastic and rubber components, the nozzles may become clogged due to ink residue or dust accumulation after prolonged use. Given that the typical lifespan of a DTF printer print head is approximately 6–12 months, the print head should be replaced promptly when an incomplete test pattern is detected.
Users can check the print head status by printing a test pattern using the printing software: continuous lines and accurate colors indicate that the nozzles are working correctly; if there are broken lines or color deviations, the print head needs to be replaced.
In addition to hardware, software configuration and printing curves (i.e., ICC profiles) also have a significant impact on printing results. Before printing, the units (such as centimeters, millimeters, or inches) should be correctly set in the software, the ink droplet size should be adjusted to medium, and the appropriate printing curve should be selected. All parameters must be accurately set to ensure optimal print quality. Different curves correspond to different CMYK mixing ratios, which in turn affect color rendering. Furthermore, the curve settings are closely related to the DTF ink used.
Ink droplet size is one of the key factors affecting image quality: smaller ink droplets help improve image resolution and clarity, especially for fine text and lines; larger ink droplets are more suitable for high-speed printing and large-area coverage, often used for large-format signage and other products.
Our company's printer software comes pre-installed with optimized printing curves, calibrated by our technical engineers based on the specific DTF ink used, to achieve accurate color reproduction. Therefore, we recommend that users use Fedar ink to ensure color consistency. If using other RIP software, the corresponding ICC profile needs to be imported separately, which is time-consuming and not user-friendly for beginners.
Different types of ink directly affect the printing effect: for example, UV ink is suitable for direct printing on various materials, while DTF ink is specifically designed for transfer film. The printing curves and ICC profiles have been repeatedly tested and adjusted. If using Fedar ink, users can directly select the matching curve in the software without manually configuring the ICC file, saving significant time. Due to the high compatibility between Fedar ink and the curves, the most accurate color output can be achieved. We strongly recommend using Fedar DTF ink; using other brands of ink may lead to curve incompatibility, affecting the printing effect, and even causing printhead clogging. In addition, ink has a shelf life: it is recommended to use it within three months after opening, otherwise its activity may decrease, affecting printing quality and increasing the risk of clogging; unopened ink has a shelf life of six months, and should not be used after this period.
There are many types of DTF transfer films on the market, and their quality directly affects the transfer effect. Generally, films with good ink absorption and high opacity achieve better printing results. However, some films have problems with insufficient adhesion of the powder coating, resulting in uneven printing or localized ink failure. These films are not only difficult to handle and prone to fingerprints, but may also exhibit defects such as deformation and blistering during subsequent heat curing.
For example, some films have a melting point lower than the melting temperature of the DTF powder, making them prone to deformation during curing. If the film melts before the powder at 150℃, it may affect the durability of the pattern during high-temperature washing. Even worse, some films warp severely during heating, or even adhere to the top of the oven, posing a safety hazard.
Our company's transfer film uses a high-quality polyethylene substrate with moderate thickness and a special matte powder coating on the surface to ensure firm ink adhesion. Its substantial texture not only ensures the smooth and stable printing of the pattern but also optimizes the final transfer effect.
After printing, the transfer film needs to be coated with DTF adhesive powder and heated in a dedicated curing oven. If the oven temperature is below 110℃, the powder will not melt completely, leading to poor adhesion of the pattern and potential cracking later. Once the required temperature is reached, heating should continue for at least 3 minutes to ensure the powder is fully melted. The quality of the curing oven directly affects the pattern's bonding strength; inferior equipment can become a major bottleneck in the DTF transfer process.
At the same time, the quality of the adhesive powder should not be overlooked: low-quality powder will reduce the pattern's adhesion, leading to problems such as blistering and cracking after transfer, affecting durability. We recommend using Fedar hot-melt adhesive powder, whose superior quality ensures strong pattern adhesion and long-lasting results.
If there's anything we can do to further showcase machines' features, please let us know.
Email: sale@fedar.net
Whatsapp: http://wa.me/8617700639356
Our company has over 30 models of printers with independent intellectual property rights and patents. Marketed under the esteemed brands of Skycolor, Stormjet, and Fedar brands, these printers cover a wide range, including digital textile printers, UV printers, eco-solvent printers and more. Known for their exceptional quality and performance.
