VidePak’s pasted valve bags are engineered to deliver unmatched durability, compliance with international regulations, and eco-friendly recyclability. With over 1.2 billion bags produced annually, our solutions meet the rigorous demands of chemical, agricultural, and industrial sectors, ensuring safe transportation and storage for materials like fertilizers, plastic pellets, activated carbon, and disinfectant powders.
1. Key Features of Pasted Valve Bags
Pasted valve bags are designed with precision to address the unique challenges of bulk material packaging. Their structural and material advantages include:
1.1 High-Strength Material Composition
- Material: Made from virgin polypropylene (PP) woven fabric laminated with BOPP (Biaxially Oriented Polypropylene) or kraft paper, these bags offer tear resistance and moisture protection. VidePak uses Starlinger weaving machines to ensure fabric densities of 8×8 to 12×12 threads per inch, achieving tensile strengths up to 1,200 N/5 cm.
- Lamination: Outer layers are laminated with BOPP film (20–30 microns) for UV resistance and print clarity, critical for branding and outdoor storage.
1.2 Advanced Valve Design
The pasted valve mechanism allows for rapid filling and minimizes dust leakage. For hygroscopic materials like disinfectant powders, an inner polyethylene (PE) liner (0.03–0.05 mm thickness) is added to prevent moisture ingress.
1.3 Customization Capabilities
VidePak’s 30+ printing machines support up to 8-color flexographic printing, enabling high-resolution branding and hazard symbols compliant with global standards (e.g., GHS for chemicals).
2. Recycling and Sustainability Practices
Pasted valve bags are 100% recyclable, aligning with circular economy principles.
2.1 Recycling Process
- Collection: Post-consumer bags are collected through partnerships with recycling agencies.
- Reprocessing: PP fabric is shredded, melted, and pelletized for reuse in non-food-grade products.
- Certifications: VidePak’s bags meet ISO 14001 standards, and our recycling partners hold GRS (Global Recycled Standard) certifications.
2.2 Reducing Environmental Impact
By using 30% recycled PP in non-critical layers, VidePak reduces carbon footprint without compromising strength. For example, a 50 kg fertilizer bag with recycled content lowers CO2 emissions by 15% compared to virgin PP.
3. Compliance with Global Standards
Selecting compliant packaging requires understanding regional regulations:
3.1 Regional Standards Overview
| Region | Key Standards | Critical Parameters |
|---|---|---|
| EU | EN 277:2022 (Transport) | Thickness ≥ 90 GSM; Stacking strength ≥ 1,000 kg |
| USA | ASTM D5635 (Chemical Resistance) | PE liner thickness ≥ 0.04 mm; UN certification |
| Japan | JIS Z 1539 (Moisture Barrier) | Water vapor transmission ≤ 5 g/m²/day |
| Australia | AS 2070:2020 (Recyclability) | Recycled content ≥ 20% |
| China | GB/T 8946-2021 (PP Bags) | Tensile strength ≥ 800 N/5 cm |
3.2 Product-Specific Packaging Solutions
- Fertilizers: Opt for 100–120 GSM bags with UV-stabilized BOPP lamination to withstand prolonged outdoor storage.
- Plastic Pellets: Use anti-static liners to prevent dust explosions (required under ATEX directives in the EU).
- Activated Carbon: Integrate multi-layer kraft paper liners for odor containment.
4. Choosing the Right Parameters
4.1 Thickness and Weight
- Lightweight Materials (e.g., plastic pellets): 80–90 GSM fabric + 20-micron BOPP.
- Heavy-Duty Applications (e.g., construction chemicals): 120–150 GSM fabric + 30-micron BOPP.
4.2 Leak Prevention
- Seam Design: Ultrasonic sealing for valve areas ensures no leakage during pneumatic filling.
- Inner Liners: PE or aluminum foil liners (0.05 mm) for fine powders like carbon black.
5. FAQs
Q1: How do I select the right GSM for my product?
A: Match GSM to product density. For example, 25 kg of fertilizer (bulk density 0.8 g/cm³) requires 100 GSM fabric.
Q2: Are pasted valve bags reusable?
A: Yes, but reuse depends on material condition. We recommend single-use for hazardous chemicals.
Q3: Does VidePak provide customized sizes?
A: Yes, our 100+ circular looms support sizes from 10 kg to 50 kg.
6. About VidePak
Founded in 2008 and led by CEO Ray, VidePak specializes in woven packaging solutions with 568 employees across global markets. Our advanced infrastructure includes:
- Production: 100+ circular looms, 16 extrusion lines.
- Sustainability: 40% energy reduction via solar-powered facilities.
- Certifications: ISO 9001, BRCGS, and Sedex compliant.
References
- VidePak Woven Bags. (2025). Custom Solutions for Chemical Product Packaging. https://www.pp-wovenbags.com/
- GB/T 8946-2021: Polypropylene Woven Bags – China National Standard.
- ASTM D5635-19: Standard Test Method for Dynamic Water Resistance of Shipping Containers.
Contact
Email: info@pp-wovenbags.com
Website: https://www.pp-wovenbags.com/
This article integrates technical expertise, regulatory insights, and VidePak’s industry leadership to guide procurement decisions. For further details on valve bag customization or sustainable packaging solutions, explore our dedicated resources on valve bag innovation and chemical-grade packaging standards.