High Tear Resistance Industrial Valve Paper Bag
Product Overview
Constructed with a multi-layer composite structure combining high-strength stretch kraft paper with a PE moisture-proof inner membrane, this industrial valve paper bag ensures enhanced durability and protection for bulk materials.
Manufactured using fully automated bottom-gluing forming and inner valve filling techniques, these bags offer superior reliability and production efficiency.
Key Features
- High Strength & Durability: Made from 80g-100g stretchable cowhide kraft paper with excellent tensile toughness, reliable performance on rough terrain, and resistance to breaking during repeated stacking
- Moisture-Proof & Anti-Caking: PE waterproof inner membrane blocks moisture, rain, and temperature fluctuations, preventing cement and powder materials from caking
- Dust-Free & Leak-Proof: Square bottom with glued base process and self-sealing inner valve design ensures dust-free discharge without bag bursting
- Stable Stacking: Square bottom three-dimensional forming enables stable stacking without collapse for orderly warehouse storage
- Environmentally Compliant: Made from clean, odorless materials without recycled content, compliant with national construction packaging standards
Technical Specifications
| Parameter |
Specification |
| Packaging Capacity |
Up to 50kg (standard), designed for powdered materials |
| Construction |
4-layer multi-wall: 3 layers paper + 1 PE film layer |
| Paper Material |
High-strength stretchable yellow kraft paper, ≥90 GSM |
| Moisture Protection |
Comprehensive PE inner film continuous moisture barrier |
| Forming Process |
Fully automatic square bottom with glued base, inner and outer valve openings |
Applications
- Cement Industry: Long-distance sales, cross-provincial projects, mountainous areas, and extended transportation
- Powdered Building Materials: Dry powder materials including putty powder, gypsum powder, heavy calcium carbonate, talcum powder, fly ash, and dry mortar
- Chemical Powder Industry: Moisture-proof and sealed packaging for fine powders including white carbon black, silica dioxide, additives, and fillers
- Feed & Food Additives: Dust-free and moisture-resistant packaging for feed-grade silica dioxide, carrier powders, and premixed materials
Customization Options
- Size Customization: Standard 50kg bags, with options for 25kg, 40kg, and other special sizes
- Layer Customization: Choose from 2-layer, 3-layer, 4-layer, or reinforced thickened designs
- Process Customization: Standard non-laminated, single-sided lamination, or fully waterproof laminated bags
- Printing Customization: Company logos, brand names, model numbers, and factory contact details
- Material Upgrades: High gram weight thick paper, super extensible durable paper, and frost/weather-resistant paper
- Production Flexibility: Bulk orders from stock, large bidding projects, and annual framework cooperation
HUAYUAN Custom Solutions: Our Brown Kraft Paper Bags (Model: 250000) are manufactured in Henan, China, featuring high moisture resistance and excellent tear resistance. With thickness ranging from 80-100 GSM, these 100% recyclable bags support your sustainability goals. Samples available upon request.