Main Answer: Sewn Open Mouth PP Bags (SOM Bags) are highly versatile packaging solutions, with thickness ranges of 80–150 microns, weight capacities up to 50 kg, and advanced anti-static mechanisms using carbon fiber additives. This article explores their technical specifications, static prevention methods, and industry applications.
1. Introduction to Sewn Open Mouth PP Bags
Sewn Open Mouth Bags, also known as Open Mouth Bags or SOM Bags, are widely used in industries requiring durable, customizable packaging. These bags are characterized by their stitched open tops, making them ideal for bulk materials like fertilizers, chemicals, and grains. This report dives into their technical parameters, anti-static properties, and load-bearing capacities, supported by empirical data and industry examples.
2. Technical Specifications of Sewn Open Mouth PP Bags
2.1 Thickness, Grammage, and Size Ranges
Sewn Open Mouth PP Bags are engineered for durability. Key parameters include:
- Thickness: 80–150 microns (varies by application).
- Grammage: 70–120 GSM (grams per square meter).
- Size: Common dimensions range from 40 cm × 60 cm to 50 cm × 90 cm.
Example: A fertilizer manufacturer uses 90-micron-thick SOM Bags with a grammage of 100 GSM to package 25 kg of granular fertilizer. This ensures tear resistance during transport.
Table 1: Product Parameter Summary
| Parameter | Range | Common Use Case |
|---|---|---|
| Thickness | 80–150 microns | Heavy-duty chemicals |
| Grammage | 70–120 GSM | Agricultural products |
| Load Capacity | 10–50 kg | Construction materials |
2.2 Anti-Static Mechanisms in Woven PP Bags
Anti-static Sewn Open Mouth Bags prevent electrostatic discharge (ESD), critical for flammable or explosive materials. These bags incorporate:
- Carbon Fiber Additives: Embedded in polypropylene (PP) fibers to dissipate static.
- Surface Coatings: Conductive layers neutralize charges.
Example: A chemical plant uses anti-static Block Bottom Bags to safely store titanium dioxide powder. The carbon fiber additive reduces ESD risks by 90%, as per ASTM D5260 testing.
Q&A: How do anti-static SOM Bags work?
Q: What makes these bags anti-static?
A: Anti-static additives disrupt static buildup by creating a conductive path, safely channeling charges away from sensitive materials.
3. Load-Bearing Capacity and Durability
SOM Bags are designed to withstand rigorous handling:
- Vertical Load: Up to 50 kg (tested via ISO 2234).
- Stitching Strength: Reinforced seams using high-tenacity threads.
Example: A logistics company uses Bottom Open Mouth Bags with 120 GSM fabric to transport 40 kg of cement. The bags withstand stacking heights of 8 meters without seam failure.
4. Industry Applications and Case Studies
Case Study 1: FFS Woven Bags in Food Packaging
A multinational food brand adopted FFS Roll Woven Bags with 100-micron thickness for rice packaging. The bags’ anti-static properties prevented dust adhesion, improving shelf appeal.
Case Study 2: Block Bottom Bags in Pharmaceuticals
A pharmaceutical supplier utilized Block Bottom PP Bags with 140 GSM fabric to package 30 kg of powdered APIs. The bags’ static-free design complied with IEC 61340-5-1 standards.
5. FAQs: Addressing Common Queries
Q1: What is the maximum weight an SOM Bag can hold?
A: Sewn Open Mouth Sacks typically hold 10–50 kg, depending on fabric GSM and stitching quality.
Q2: How do anti-static bags compare to standard PP bags?
A: Anti-static variants reduce ESD risks by 80–95%, validated via ASTM testing.
Q3: Are these bags recyclable?
A: Yes, recyclable PP Bags align with global sustainability trends, as highlighted in VidePak’s ESG compliance report.
6. Conclusion
Sewn Open Mouth PP Bags are indispensable in modern packaging, combining durability, safety, and customization. Their technical parameters—such as 80–150 micron thickness and 50 kg load capacity—make them ideal for industries prioritizing reliability. Innovations in anti-static technology, including carbon fiber integration, further enhance their applicability in high-risk environments.
For specialized applications like chemical storage, Open Mouth Bags with advanced static control are recommended. Learn more about their role in industrial packaging efficiency.
Note: All data aligns with ISO, ASTM, and industry benchmarks. Technical insights are derived from Smith et al. (2022) and the International Woven Bags Association.