Special Carbon Black for Ink
Overview
Special carbon black for ink is a finely processed form of carbon black tailored for use in printing inks. It is engineered to deliver superior blackness, opacity, and stability, making it indispensable in high-quality ink formulations. The pigment is produced through controlled combustion or thermal decomposition of hydrocarbons, resulting in particles with uniform size and structure. Its primary role in inks is to provide color strength and durability while maintaining print quality.
Physical and Chemical Properties
Special carbon black for ink exhibits high surface area and porosity, which contribute to its excellent tinting strength and dispersion properties. It is chemically inert, resisting acids, alkalis, and solvents, ensuring long-term stability in ink formulations. The material’s UV resistance prevents fading under sunlight, a critical feature for outdoor applications. Its low volatile content and neutral pH further enhance compatibility with various ink systems, including water-based, solvent-based, and UV-curable inks.
Main Applications
This carbon black is predominantly used in printing inks for packaging, newspapers, magazines, and specialty prints like security inks. Its deep black shade and consistency are vital for high-resolution printing. Beyond inks, it serves as a colorant in coatings and plastics, where UV resistance and durability are required. In conductive inks, specific grades of carbon black are employed for their electrical properties.
Safety and Storage
Handling special carbon black requires precautions to avoid dust inhalation, which can cause respiratory irritation. Use gloves and masks, and ensure adequate ventilation in work areas. Storage should be in sealed containers away from moisture and oxidizing agents to prevent degradation. The material is non-flammable but should be kept in a dry environment to maintain its quality.
B2B Procurement Guide
When procuring special carbon black for ink, prioritize suppliers with proven quality control and certifications like ISO 9001. Key specifications to evaluate include particle size (typically 10-100 nm), pH (neutral to slightly alkaline), and ash content (<0.5%). Bulk buyers should negotiate pricing based on volume, with prices ranging from $1.5 to $3.5 per kg. Sample testing is recommended to ensure compatibility with specific ink formulations.
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