Offset Press Ink
Offset ink is a core consumable for modern lithographic printing. It is designed for high-speed printing presses (15,000 sheets/hour) and fine color reproduction. Through the precise ratio of resin, pigment, solvent and additives, it balances the three core requirements of "98% color accuracy (ΔE<1.5)", "quick drying in 1-3 minutes" and "low VOC environmental protection".
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Product Introduction
Composition & Technology：
Resin Binders (20%-50%)：Phenolic-modified rosin resins ensure adhesion; UV-curable resins work with LED-UV presses, saving
Solvents (20%-40%)：Plant-based solvents (soybean oil) replace petroleum; waterless inks have VOC < 0.01%, complying with GB 38507-2020 and REACH;
Additives (<10%)：Waxes enhance scratch resistance (500+ abrasion cycles); defoamers eliminate printing defects.
Formula Categories：
Conventional：Sheetfed inks (food packaging),web offset inks (heatset/coldset for magazines/newspapers);
UV/LED-UV：High-gloss wear-resistant (cosmetic boxes),low-odor (pharmaceutical/children's products);
FAQ
Compared with conventional offset press inks, what advantages do UV/LED-UV offset press inks have in drying speed and energy efficiency? What products are they suitable for?
UV/LED-UV inks outperform conventional inks in "drying speed" and "energy efficiency," suitable for high-demand scenarios:
Drying speed: Conventional inks take 1-3 minutes to dry via oxidation, while UV/LED-UV inks "cure instantly" (dry immediately after exposure to LED light), completely solving the problem of printed product stacking adhesion, suitable for high-speed web offset printing (e.g., magazine and label mass production);
Energy efficiency: LED-UV inks save 70%-80% energy compared to traditional UV inks, and LED lamp lifespan reaches 10,000 hours (10x that of traditional UV lamps), reducing equipment maintenance costs;
Suitable products: High-gloss cosmetic boxes (scratch resistance >500 cycles), pharmaceutical packaging (low odor, no residue), children's toy labels (safe, VOC-free), especially for orders requiring "fast delivery + high gloss."
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