Packaging for cement, etc.
PP Valve Bags
High Strength Packaging for Cement & Powder Materials
PP valve bags are widely used for cement, dry mortar, and industrial powder products due to their excellent strength, durability, and compatibility with automatic filling systems.
Manufactured from high-strength polypropylene woven fabric, these bags provide outstanding resistance against tearing, impact, and rough handling during transportation.
Key Features:
✔ High tensile strength and excellent load-bearing capacity
✔ Suitable for automatic filling machines
✔ Self-closing valve design for efficient packaging
✔ Excellent puncture and tear resistance
✔ Moisture-resistant PP woven structure
✔ Stable stacking performance after filling
Product Advantages:
- Faster filling speed
- Reduced material loss during filling
- Cleaner packaging operation
- Improved logistics efficiency
- Suitable for long-distance transportation
Applications:
✔ Cement
✔ Tile adhesive
✔ Dry mortar
✔ Gypsum powder
✔ Construction additives
✔ Industrial powders
Paper Valve Bags with PE Liner
Premium Moisture Protection for High-Quality Powder Products
For products with higher requirements for moisture resistance and storage stability, paper valve bags with PE inner liners provide an excellent packaging solution.
The combination of multi-layer kraft paper and PE film creates a strong barrier structure that protects powder materials from humidity and external contamination.
Typical Structure:
Outer Layer:
High-strength kraft paper
Middle Layer:
PE film / laminated layer
Inner Layer:
Food-grade or industrial-grade PE liner (customizable)
Key Features:
✔ Excellent moisture barrier performance
✔ Improved storage stability
✔ Strong square-bottom structure
✔ Better stacking and palletizing performance
✔ Premium printing appearance
✔ Compatible with automatic filling equipment
Applications:
- Premium cement
- Putty powder
- Wall repair materials
- Dry construction mixtures
- Specialty chemical powders
Customized Valve Bag Solutions
Designed for Different Powder Characteristics
Different powder materials have different requirements for air permeability, moisture resistance, and filling efficiency.
ZLONE provides customized valve bag solutions based on:
✔ Powder fineness
✔ Filling equipment requirements
✔ Transportation conditions
✔ Storage environment
✔ Customer branding needs
Available options:
- Single valve / double valve design
- Top or bottom valve structure
- Micro-perforation technology
- Customized paper layers
- PE liner options
- Multi-color printing