Polyethylene Colored Multiwall Bags
Product Overview
Colored multi-layer kraft paper bags are manufactured using high-strength pure wood pulp kraft paper as the base material. Through advanced multi-layer composite processes combined with environmentally friendly color printing technology, these bags provide versatile open-style or customized packaging solutions.
This innovative product effectively balances the inherent toughness and durability of kraft paper with enhanced visual recognition through colorful printing. The multi-layer construction significantly improves load-bearing capacity and protective characteristics, ensuring reliable performance across various applications.
Key Features
- Aesthetic & Functional Balance: Eco-friendly water-based colored ink printing delivers vibrant, fade-resistant colors. Customizable with multi-color patterns, brand logos, specifications, and warning labels to enhance product recognition and brand identity.
- Multi-layer Protection: 2 to 4-layer kraft paper composite construction tailored to specific load requirements. Tight bonding ensures excellent tensile strength and tear resistance, supporting weights from 10 to 50 kilograms.
- Sealed Moisture Protection: Optional PE inner membrane lamination and surface waterproof coatings create dual protective barriers against moisture, dust, and mild chemical corrosion.
- High Adaptability: Supports various structural customizations including open-mouth and flat-bottom designs for efficient filling operations with both automated and manual loading systems.
Technical Specifications
Layer and Structural Requirements
- Standard configuration: 2 to 4 layers (customizable)
- 2-3 layers: Supports 10-30 kg loads
- 3-4 layers: Supports 30-50 kg loads
- Firm bonding ensures no delamination or wrinkling
Manufacturing Standards
- Precision cutting with ±1mm dimensional accuracy
- High-temperature bonding with minimum 1.5N/15mm strength
- Uniform stitch spacing (2-3mm) or environmentally friendly adhesives
- Batch inspections for quality assurance
Printing Technology
- Environmentally friendly water-based inks (food-grade compliant)
- Minimum 300 dpi resolution for clear, legible printing
- 95% color reproduction accuracy
- Multi-color overprinting on front, back, and sides
Industry Applications
| Industry |
Applications |
| Building Materials |
Cement, gypsum powder, putty powder, quartz sand, tile adhesive, silica, titanium dioxide |
| Chemical Industry |
Fertilizers, compound fertilizers, resin powders, carbon black, RDP, HPMC |
| Agricultural Sector |
Seeds, feed, pesticides, fertilizer raw materials, grains |
| Food & Feed |
Flour, starch, nuts, coarse grains, livestock and aquatic feed |
| Industrial Raw Materials |
Plastic pellets, talc powder, calcium carbonate, refractory materials, glass fibers |
| Foreign Trade & Retail |
Export packaging, retail packaging for nuts, dried goods, handmade products |
Customization Options
Size and Capacity: Standard capacities: 10kg, 20kg, 25kg, 50kg. Custom capacities from 10kg to 50kg available with precise dimensional adjustments.
Layer Customization: 2-4 layers of kraft paper composite structures tailored to specific load requirements.
Color and Printing: Natural kraft paper with color printing standard. Custom base colors (white, brown, colored) with multi-color flexographic printing. Free printing proofs provided.
Structure and Protection: Open-mouth or square-bottom structures. Optional PE inner liners, waterproof coatings, tear-resistant reinforcements.
Special Customizations: Export-grade packaging, food-grade compliance, custom handles, valves, and special structures.
Customization Process
- Requirement Communication: Provide parameters for capacity, dimensions, layers, printing artwork, and protection requirements
- Sample Production: Free samples produced for customer approval before mass production
- Mass Production: Automated manufacturing with strict quality control
- Inspection and Shipping: Batch inspections, packaging, delivery with logistics tracking and export documentation support