Obooc Black Technology Ink – Deep Black & Waterproof

Black ink is the most fundamental yet essential consumable for daily writing, office printing, and professional drawing. Obooc intensified black ink features high blackness, smooth and stable performance, and is eco-friendly and safe. It delivers deep black color and waterproof effect, producing clear, sharp prints with distinct characters.

Pure Intensified Black Ink for Effortless Writing & Printing

Obooc intensified black ink is built around a non-carbon nano-pigment system, setting it apart from traditional carbon inks that tend to precipitate and clog pens or printheads.Using imported high-purity black pigment as its main colorant, combined with deionized water and eco-friendly organic solvents, the ink undergoes multi-stage grinding and precision filtration to achieve nanometer-scale particles that disperse evenly without agglomeration.This formula delivers saturated, intense blackness while ensuring smooth ink flow for writing and printing. It remains stable during long-term storage with no stratification, clogging of pen nibs or printhead nozzles.

   "Intensified black" does not merely mean a darker shade. Instead, it enhances light absorption efficiency through optimized colorants and compounded black-enhancing additives, resulting in bright, uniform blackness and strong hiding power for text and lines.

   Unlike ordinary inks that tend to turn gray or bleed through paper, Obooc intensified black ink achieves a deep matte black finish even on regular paper, with sharp edges and no feathering. It meets high standards for blackness and definition required for signatures, notes, contracts, film plate making, and other professional applications.

   Featuring a neutral pH formula, Obooc intensified black ink is free of pungent odors, heavy metals, and harmful volatile substances, complying with environmental protection standards.

   It is non-corrosive to paper and pen nibs, making it safe and reliable for daily student writing and long-term office use. Additionally, it is waterproof, lightfast, and fade-resistant. Once dry, the ink is firmly fixed and resistant to smudging from water exposure or sunlight, ensuring long-term preservation of documents and works.

It boasts excellent stability and compatibility, working well with a wide range of printing devices.Having passed high and low temperature cycle tests, the ink features stable chemical properties, resisting deterioration and volatilization. It is suitable for fountain pens, gel pens, plotters, inkjet printers, coding machines and other equipment, and is highly compatible with mainstream original consumables.A three-stage filtration process removes impurity particles to protect pen nibs and printheads, extending the service life of equipment. It ensures consistent ink flow without skipping or ink starvation during continuous writing or printing.