Professional purchasers should pay special attention to the following technical parameters of copy paper:
• Basis Weight Range: Mainstream office paper is typically 70-90gsm, but demand for 120gsm products in the premium market is growing significantly.
• Opacity: High-quality copy paper requires ≥92% opacity to avoid show-through in double-sided printing.
• Smoothness: Directly affects print quality; laser printer-specific paper demands ≥200s smoothness.
• Acidity/Alkalinity: Neutral paper with a pH of 7.5-9.5 ensures long-term preservation.
• Static Control: Advanced anti-static treatment can reduce paper jam rates by 40%.
• Eco-Certifications: Includes FSC certification, chlorine-free bleaching, etc.
The latest ISO 9706:2024 standard released by the International Organization for Standardization (ISO) imposes stricter requirements on the aging resistance of archival-grade paper. Tests show that compliant paper must retain ≥85% tensile strength after accelerated aging experiments, driving paper manufacturers to upgrade production processes.
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