Single-Sided Coated Paper
Key Characteristics
Coating: Typically 8–20g/m² of pigments (kaolin, calcium carbonate) and binders (latex, starch) on the front side.
Grammage: 80–400gsm, with common weights including 128gsm, 157gsm, 200gsm, and 300gsm.
Finish: Glossy, matte, or silk (semi-gloss) options available. Manufacturing Process
Raw Materials
Base Paper: Made from bleached kraft wood pulp for strength and dimensional stability.
Coating Formula:
Pigments: Enhance opacity, brightness, and smoothness.
Binders: Ensure adhesion between the coating and base paper.
Additives: Optical brighteners, dispersants, and gloss agents.
Production Steps
Coating Application:
Single-Sided Coating: Applied using blade, air knife, or curtain coaters.
Drying: Infrared or hot-air drying to remove moisture.
Calendering: Super-calendering under high pressure to achieve uniform gloss and smoothness.
Slitting & Packaging: Converted into sheets or rolls for distribution.
Physical and Printing Properties
Performance Parameters
| Property | Typical Range | Function |
|---|---|---|
| Glossiness | 50–80 GU (front side) | Enhances color vibrancy |
| Smoothness | 600–1,200 s (Bekk method) | Ensures sharp print details |
| Whiteness | 85–95% ISO brightness | Optimizes color reproduction |
| Stiffness | 100–300 mN·m (300gsm) | Supports structural integrity |
| Ink Absorption | Moderate (front side) | Ensures quick drying and minimal smudging |
Printing Compatibility
Offset Printing: Ideal for high-resolution images and text.
Digital Printing: Smooth surface supports toner adhesion.
Flexographic Printing: Suitable for flexible packaging applications.
Applications
Packaging
Food & Beverage: Cereal boxes, coffee bags, and snack packaging.
Cosmetics: Perfume boxes, skincare product labels.
Electronics: Retail packaging for smartphones and accessories.
Printing & Publishing
Catalogs: High-quality front covers with uncoated inner pages.
Greeting Cards: Glossy front designs with blank or lined backs.
Posters: Durable substrate for indoor advertising.
Labeling
Bottles & Containers: Adhesive labels requiring one-sided printability.
Logistics: Shipping labels with barcodes and tracking information.
Market Trends
Sustainability
Recycled Content: Increasing adoption of FSC-certified and recycled base papers.
Eco-Friendly Coatings: Development of water-based and biodegradable alternatives.
Technological Innovations
UV-Curable Coatings: Faster drying and scratch resistance.
Custom Finishes: Metallic, embossed, or tactile coatings for premium branding.
Regional Demand
Asia-Pacific: Dominates production (China, Japan) due to booming e-commerce and consumer goods sectors.
Europe: Focus on luxury packaging and sustainable solutions.
Leading Manufacturers
International: Stora Enso, Sappi, UPM-Kymmene.
Chinese Players: Shandong Huatai Paper, Chenming Paper, Nine Dragons Paper.
Challenges
Cost Efficiency: Balancing coating quality with production costs.
Regulatory Compliance: Meeting global food safety standards (e.g., FDA, EU EC 1935/2004).
Alternative Materials: Competition from plastic-free and digital alternatives.
Conclusion: Single-sided coated paper remains a versatile choice for applications requiring high-quality visuals on one side while offering flexibility in reverse-side functionality. As industries prioritize sustainability and innovation, advancements in coatings and eco-friendly practices will shape its future growth.
contact us：
email：02@songhongpaper.com
whatsAPP:+8618933510649
youtube:https://www.youtube.com/@songhongpaper
address:(Factory Building) Hengyu Road 4th, Sandong Digital Park, Huicheng District, Huizhou City, Guangdong Province
For specific product certifications or technical data sheets, consult local suppliers or industry standards (e.g., ISO 12647 for printing).