Valve Open Top Multiwall Paper Bags with Customizable Bottom
This kraft paper valve bag is manufactured from high-quality 100% virgin wood pulp kraft paper using precise bag-making techniques to ensure exceptional durability and reliability. Specifically designed for efficient packaging of granular, powdered, and flake materials.
Key Features
Eco-Friendly and Biodegradable
Made from 100% natural kraft paper that is non-toxic, odorless, and free of harmful residues. Complies with national environmental standards and international export requirements. Naturally decomposes without soil or environmental pollution.
Valve Spout Design for Efficient Filling
Professional valve spout structure with internal or external valve options compatible with automated filling equipment. Eliminates manual bag opening, improves packaging efficiency, and provides excellent sealing to prevent material leakage.
Durable Construction with High Load Capacity
Constructed from pure wood pulp kraft paper with superior longitudinal tear resistance and burst strength. Withstands considerable tensile and compressive forces, supporting loads from 25 to 50 kilograms with excellent stacking stability.
Versatile Customization Options
Customizable with special features including leak-proofing, moisture resistance, and various specifications to accommodate different materials and filling equipment requirements.
Easy Stacking and Storage
Firm, well-formed bag body maintains shape after filling, allowing neat stacking of 3 to 5 layers. Saves storage space and simplifies warehouse management and transportation.
Technical Specifications
| Parameter |
Specification |
| Base Material |
Pure wood pulp extending kraft paper, 120-250 g/m² basis weight |
| Auxiliary Materials |
Moisture-proof food-grade PE coating, high-strength kraft paper valves |
| Adhesive |
Environmentally friendly water-based glue, odorless with no heavy metal residue |
| Manufacturing Process |
Fully automated valve bag-making machine, smooth surface, uniform stitching |
| Printing |
1-6 color flexographic printing with environmentally friendly water-based inks |
| Dimension Tolerance |
±5 mm for bag dimensions, ±0.05 mm for thickness, ±1 mm for valve inner diameter |
| Storage Conditions |
15°C-30°C temperature, ≤60% humidity, max stacking height 1.2 meters |
| Shelf Life |
2 years unopened, prompt use recommended after opening |
Industry Applications
- Chemical Industry
- Building Materials Industry
- Grain and Feed Industry
- Food Industry
- Agriculture and Agricultural Supplies
- Foreign Trade and Export Scenarios
Customization Services
Customization Options
- Specification Customization: 10L to 50L capacity (10-50kg), adjustable dimensions, square/round bottom, inner/outer valve types
- Material Customization: Various kraft paper weights and colors, PE coating, lamination, food-grade materials with certification
- Printing Customization: 1-6 color printing for logos, product information, multi-language labels, adjustable printing positions
- Accessory Customization: Handles, hanging ropes, sealing strips, inner liners, easy-tear openings, anti-counterfeiting marks
Customization Process
- Requirement Communication: Discuss specifications, materials, processes, printing, and quantities
- Sample Production: Create samples for approval with free adjustments until satisfaction
- Contract Signing: Define responsibilities, delivery times, and payment terms
- Mass Production: Automated production with quality control throughout
- Quality Inspection and Shipping: Strict inspection, packaging, and logistics tracking
- After-Sales Support: Prompt resolution of quality issues with return, exchange, or replenishment services
HUAYUAN Custom Valve Bags
Model: 2500001 | Origin: Henan, China
We accept custom orders for logos and branding. Choose between valve or open top design with customizable bottom configurations. Available with up to 7 printing colors for vibrant, eye-catching packaging solutions.