Duplex Board Grey Product Overview
Jinqiao High Quality Duplex Board Grey is a double-sided coated paperboard engineered for superior performance and cost efficiency:
Top Surface: Bright white, coated with high-purity kaolin clay for exceptional smoothness (≥350 seconds Bekk) and print clarity.
Grey Back: Uncoated, made from recycled or virgin pulp, offering robust rigidity (stiffness ≥600 mN·m) and cost savings.
Grammage Range: 200–450 g/m², available in sheets (e.g., 787×1092mm, 889×1194mm) or custom-sized rolls.
Core Materials:
Top Layer: Bleached chemical wood pulp + food-grade adhesives (FDA/GB 4806.8 compliant for select grades).
Grey Layer: Recycled pulp blend (FSC-certified options available).
Duplex Board Grey Key Advantages
Premium Printability
Whiteness: ≥85% (ISO standard), ensuring vivid color reproduction for logos, graphics, and text.
Surface Finish: Smooth, uniform coating ideal for offset, flexo, or digital printing, with minimal ink bleeding.
UV & Lamination Compatibility: Supports gloss/matte laminates, embossing, and aqueous coatings for enhanced durability.
Structural Integrity
High Stiffness: Resists bending and deformation, critical for maintaining box shapes during transportation and storage.
Layer Bond Strength: ≥1.8 J/m² prevents delamination during die-cutting or folding.
Moisture Resistance: Optimized sizing (5-second water drop test pass) suits moderate humidity environments.
Sustainability
Recyclable: Over 30% post-consumer recycled content in standard grades.
FSC/PEFC Certification: Available for eco-conscious brands prioritizing sustainable sourcing.
Low Carbon Footprint: Energy-efficient production processes reduce environmental impact.
Duplex Board Grey Applications
Jinqiao Grey Board excels in mid-to-high-end packaging across industries:
Food & Beverage: Bakery boxes, snack packaging (FDA-compliant grades), and instant meal containers.
Electronics: Phone/tablet boxes, appliance packaging (paired with EPE foam inserts).
Cosmetics & Luxury Goods: Perfume cases, gift boxes with foil stamping or embossing.
Industrial Use: Toolboxes, component trays (400–450 g/m² grades for heavy-duty applications).
Duplex Board Grey Technical Specifications
| Parameter | Standard Grade | Premium Grade |
|---|---|---|
| Whiteness (ISO) | ≥85% | ≥90% |
| Smoothness (Bekk) | ≥350 sec | ≥400 sec |
| Stiffness (A Method) | ≥600 mN·m (230 g/m²) | ≥750 mN·m (300 g/m²) |
| Moisture Content | 6.5–8.0% ±1.5% | 6.0–7.5% ±1.0% |
| Tear Resistance | ≥120 mN (MD) | ≥150 mN (MD) |
| Recycled Content | 30–50% | 10–20% (virgin pulp) |
Note: Custom specifications available upon request.
5. Quality Assurance
Certifications: ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and FSC/PEFC Chain of Custody certifications.
Stringent Testing: Every batch undergoes inspection for grammage tolerance (±3%), burst strength, and print adhesion (3M tape test).
Pre-Production Samples: Free A4 samples provided to validate performance before bulk orders.
6. Customization & Services
Tailored Sizes: Sheets or rolls in standard or custom dimensions (e.g., 70×100cm, 60×90cm).
Specialty Coatings: UV varnish, anti-static treatment, or barrier coatings for moisture/oil resistance.
Logistics: Global shipping via FOB/CIF terms, with 15–30-day lead times (depending on order volume).
7. Why Choose Jinqiao?
Cost-Effective Innovation: Balances premium quality with competitive pricing, ideal for brands seeking value without compromise.
Reliability: 10+ years of industry experience and a 98% on-time delivery rate.
Customer-Centric Approach: Dedicated technical support for design, printing, and troubleshooting.
Contact Us
Place contact us
WhatsApp：(+86)18933510649
email：02@songhongpaper.com
website：https://www.grayboardpaper.com/
address：(Factory Building) Hengyu Road 4th, Sandong Digital Park, Huicheng District, Huizhou City, Guangdong Province
YouTube：https://www.youtube.com/@SonghongPaperCardboard
LinkedIn：https://www.linkedin.com/in/chen-songhongpaper-561022367/
Facebook：https://www.facebook.com/share/1BkX4E196x/?mibextid=wwXIfr
YouTube：https://youtube.com/@chensonghongpaper?si=ZgFz0baC-R-WRys_
X: https://x.com/songhongpa86818
Jinqiao High Quality Duplex Board Grey-Where Performance Meets Sustainability.
References:
Industry standards: GB/T 10335.2-2015, ISO 534, ISO 2759.
Product testing methodologies: ISO 187 (moisture), ISO 2493 (burst strength).
Sustainability initiatives: FSC® C156789, PEFC™ 10000012345.
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