染料与颜料油墨的专业选择策略
Search Search Home / Product Series UV Single Pass Printer Series Single Pass Printer Series Contact Us Share this blog Facebook Linkedin Twitter You may like The Ultimate Guide to Single Pass Printing Inks: Professional Selection Strategies for Dye vs. Pigment Inks In the realm of high-speed Single Pass printing, choosing the right ink is a key factor in determining print quality, efficiency, and cost. Single Pass printers use environmentally friendly, food-grade water-based inks, available in both dye and pigment varieties, each with its unique advantages and applications. So how do you choose the right one? The core difference between the two inks is that dye inks offer vibrant colors but are not waterproof; while pigment inks are waterproof, but their color reproduction is slightly weaker than dye inks. However, thanks to the research and development of the Novix technical team, the current pigment inks are upgraded, achieving professional-grade color reproduction while remaining waterproof. For different types of printing materials, an informed choice needs to be made based on the final product, budget, and performance requirements. Technical Decoding: The Chemical Essence of the Two Inks Water-based dye and pigment inks differ fundamentally in their chemical structure and performance characteristics, directly determining their application scenarios. Dye inks are composed of dye molecules that are completely dissolved in water, forming a transparent solution. These dye molecules are typically derived from natural raw materials such as certain plants or synthetic raw materials, characterized by their small molecular size, allowing them to penetrate deeply into the fiber of the material. In contrast, pigment inks suspend tiny solid pigment particles in an aqueous medium, with particle sizes hundreds of times larger than dyes. These particles are typically encapsulated in synthetic resins, forming a stable suspension. Dye inks offer superior color performance due to their molecular-level solubility, resulting in rich and vibrant prints. Their molecular size allows for better dispersion within paper, preserving its original gloss. However, dye inks are more sensitive to humidity and oxidation, meaning that prints may fade over extended outdoor exposure, and images may become blurry or wash out in humid environments. The advantage of pigment inks lies precisely in their exceptional durability. The size, structure, and complexity of pigment molecules give them superior lightfastness, moisture resistance, and oxidation resistance (including ozone). The Unique Challenges of Single Pass Printing Single Pass printing technology places more stringent demands on ink performance because, during this high-speed, single-scan printing process, the ink must penetrate, dry, and set within an extremely short time. During printing, the print head is often exposed to air for extended periods, increasing the risk of nozzle drying. Moisture evaporation from the nozzles can cause ink concentration, forming fluid plugs that may clog the nozzles and affect the reliability of droplet ejection. To ensure smooth operation of Single Pass printers, inks need to possess the following characteristics: long-term storage stability, droplet shape retention, rapid wetting performance, controlled spreading performance, and rapid drying capability. Especially for high-speed Single Pass printing systems,
