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Sublimation Printing FAQ, Large Format Sublimation Printer and Roller Heat Press Usage Guide
Frequently Asked Questions About Sublimation Printing
In this article, we will address some of the most frequently asked questions about sublimation printing and pressing using all the equipment from AM.CO.ZA.
Why Do We Need Protection SL Brown Tissue Paper While Heat Pressing?
When heat pressing from edge to edge or working with fabrics that have holes, such as mesh, protection paper, tissue paper, or liner paper is necessary. This paper prevents ink from seeping past the material's edges or through the holes, which could permanently stain the blanket and render it unusable.
Why Can You Not Press onto Cotton or Natural Fibres?
Sublimation works best on synthetic polyester rather than natural fibres like cotton. To demonstrate, compare two shirts: one with 60% polyester and 40% cotton, and another with 60% cotton and 40% polyester. The difference is clear in terms of vibrancy and ink absorption. Cotton does not bond well with sublimation ink, causing designs to fade after washing. For long-lasting prints, always opt for synthetic polyester fabrics.
Why Does the Sublimation Blanket SL Heat Mat Take So Long to Settle?
When first using a heat press, the mat must be properly settled. The easiest way to do this is to bring the mat forward until it is just tight enough, without over-tightening. Then, run the machine for at least 60 hours, preferably over a few days, to ensure the mat levels out. This prevents streaks and inconsistencies during pressing. A properly settled mat ensures even pressure distribution, avoiding wavy lines in prints.
Why Can You Not Print Directly onto Material and Then Heat Press?
Printing directly onto material before heat pressing is ineffective due to ink absorption variations. Paper maintains a consistent absorption rate, whereas fabric causes ink to spread unpredictably. Printing on paper ensures better detail and controlled absorption. Additionally, printing directly onto fabric can result in excessive gas dispersion during heat pressing, which is not only inefficient but also potentially toxic.
How Long Does Sublimation Ink Last Once Pressed onto Material?
Sublimation prints generally last longer than other signage applications because the ink bonds into the fibres at temperatures exceeding 200°C. Unlike ecosolvent or UV printing, which sits on top of materials, sublimation ink becomes part of the fabric. While longevity depends on exposure conditions, sublimation prints often outlast the material itself. For example, UV-coated materials can maintain prints for up to 15 years.
Can You Accidentally Iron Sublimation Ink Out of Fabric?
No, sublimation ink cannot be removed with a household iron. Most irons heat up to 150-180°C, whereas sublimation printing occurs at 195-240°C. Since the iron does not reach the necessary sublimation temperature, the ink remains embedded in the material.
Does Having Two Print Heads Improve Quality or Just Speed Up Printing?
Having two print heads does not necessarily improve quality, but it enhances functionality, particularly for spot colour matching. More print heads allow for better accuracy in reproducing specific colours like reds or blues, making it easier to match customer expectations. However, for first-time users, a single print head is easier to manage, requiring less calibration for consistent prints.
What is the Best Printing Pass for High-Quality Sublimation Prints?
For sublimation printing, an eight-pass setting provides the best balance of quality and efficiency. Since sublimation ink does not dry instantly, using an eight-pass ensures vibrant and detailed prints. For other ink types, such as DTF printing, a 12-pass may be necessary due to drying requirements.
What Besides Clothing Can You Make with Sublimation?
Sublimation extends beyond clothing to various items like mugs, plates, and keyrings. These blank products can be customised with sublimation prints, offering a wider market reach beyond apparel.
What Causes Ink to Transfer from Paper to Material?
Sublimation transfers ink through a process called burst sublimation. When exposed to heat and pressure, the ink transforms from a solid to a gas, embedding itself into synthetic fibres. This chemical bonding ensures durability, preventing the ink from washing out or fading easily.
Conclusion
These are some of the most common questions about sublimation printing. If you have any further queries, feel free to leave a comment, and we will be happy to address them. Don’t forget to subscribe and click the bell icon to stay updated with our latest videos.
Thank you for reading!
In a time where AI and smart technologies are transforming industries, AM.CO.ZA has emerged as a leader in CNC routers and printing machines. With more than 11 years of experience, they offer a diverse range of advanced products, including CNC Routers, Large Format Printers, Vinyl Cutters, Laser Cutters, Plasma Cutters, and DTF Printers.