Overview
National Standard Ink Thinner is a formulated solvent blend designed to meet Chinese GB standards for printing applications. It is widely used in commercial and industrial printing to modify ink consistency, ensuring smooth application and adhesion on substrates like paper, plastic, and metal. Developed to replace traditional volatile organic compounds (VOCs), modern formulations prioritize environmental compliance while maintaining performance. The product is essential for achieving precise print quality in high-speed presses and specialty finishes.
Physical and Chemical Properties
This thinner typically comprises a mixture of esters, ketones, and hydrocarbons, selected for balanced evaporation rates and solvency. Its low viscosity and neutral pH prevent ink destabilization during dilution. Key metrics include a flash point of 20-40°C (varies by grade) and minimal residue post-evaporation. Unlike generic solvents, it avoids reactive components that could degrade ink pigments or binders, ensuring color fidelity and print durability.
Main Applications
Primary use cases include adjusting viscosity for offset lithography, where ink rheology directly affects dot gain and image sharpness. In flexographic printing, it enables precise film thickness control on flexible packaging materials. Specialized variants exist for UV-curable and water-based inks, though formulations differ significantly. The thinner also aids in press cleaning, removing dried ink from rollers and plates without damaging equipment components.
Safety and Storage
As a Category 3 flammable liquid, storage requires fireproof cabinets and grounding of containers to prevent static discharge. Workplace exposure limits (typically 100-200 ppm) must be monitored due to potential CNS depression effects. Containers should be kept tightly sealed to prevent moisture absorption and VOC emissions. Spill response kits with absorbent materials (e.g., sand or chemical pads) are recommended, alongside eyewash stations in handling areas.
B2B Procurement Guide
When sourcing, prioritize suppliers with ISO 9001 certification and GB/T 13217.1-2020 compliance testing reports. Bulk purchases (200+ kg drums) often reduce costs by 15-30% compared to retail packaging. Evaluate evaporation rate compatibility with your printing speed – slower thinners suit high-temperature drying systems. For export-oriented buyers, ensure REACH or RoHS documentation is available if supplying to regulated markets.
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