Loose Bales

Key Notes for Bundling Woven Bag Products

The core principle for bundling woven bag products is to focus on preventing abrasion, avoiding looseness, and ensuring easy handling. Key attention should be paid to bundling methods, stacking protection, and labeling standards, which should be adapted to the material characteristics of woven bags (e.g., susceptibility to scratching, limited load-bearing capacity).

1. Preparation Before Bundling

• Inspect the condition of woven bags to be bundled, ensuring no holes, tears, or loose stitching. Damaged, damp, or contaminated products should be stored separately to avoid affecting overall quality.

• Bundle by specifications: Group woven bags of the same size and weight into batches to prevent unstable stacking caused by mixed bundling.

• Prepare suitable strapping materials (e.g., PP straps, stretch film), ensuring the strap strength matches the total weight of the woven bags to prevent breakage.  

2. Bundling Operation Specifications

• Control the quantity per bundle: Adjust based on the size and thickness of woven bags (typically 20–50 pieces per bundle) to avoid looseness or handling difficulties due to excessive quantity.

• Strap symmetrically: Usually strap once in the middle and once at both ends of the bundle. The tightness of the straps should be moderate—firm enough to prevent loosening but not so tight that it damages the bags.

• Use "cross strapping" or "double parallel strapping," with ends fixed by buckles or heat sealing to prevent straps from loosening during transportation.

• For woven bags with inner liners or laminates, avoid direct friction between straps and the laminate layer during bundling. A soft buffer strip can be placed at the contact point to prevent scratching.  

3. Stacking and Protection Requirements

• Stack bundled products on flat, dry pallets. Ensure the bottom layer is level and avoid contact with sharp objects to prevent puncturing.

• Follow the principle of "heavier at the bottom, lighter at the top" and "same bundle per layer." The stacking height should not exceed 4–5 layers (adjust based on the weight of a single bundle) to prevent deformation of the bottom bundles due to pressure.

• For moisture-sensitive woven bags (e.g., laminated bags), stack them away from humid environments. Keep pallets elevated from the ground to prevent moisture absorption and mildew.  

4. Labeling and Handling Notes

• Attach clear labels to each bundle, indicating product specifications, quantity, weight, production date, and warnings (e.g., "Keep Dry," "Avoid Scratching") for easy counting and handling.

• Handle with care—do not drag or drop bundles. When using a forklift, align the forks with the pallet to avoid direct contact with the bundle, preventing puncturing or strap breakage.

• For long-term storage, regularly check strap tightness and bag condition. Retighten or rebundle immediately if looseness is found.

 

 

 

 

Targeted Solutions for Bulk Packaging Operations

UNIPACK specializes in providing robust pp woven bags and bulk bags tailored for manufacturers, logistics providers, and bulk bag suppliers requiring reliable containment and transport solutions. Our products cater to clients managing high-volume packaging demands, including agricultural producers, construction material handlers, and wholesale distributors. These woven sacks are designed to integrate seamlessly into existing supply chains, offering dependable product protection and optimized handling. The versatility of our range allows end users to select customized sizes and fabric specifications, meeting diverse industrial requirements.

 

Technical Integrity and Manufacturing Excellence

Our woven polypropylene bags feature durable polypropylene fabric constructed to endure abrasion, moisture, and mechanical stress. We implement rigorous quality control across manufacturing sites in China, Vietnam, and Cambodia, ensuring consistent performance metrics such as tensile strength, permeability rates, and stacking capacity. The bags are bundled with soft buffer strips and secured using polypropylene strapping, enabling stable palletization with recommended stacking of 4–5 layers per pallet. Customizable labeling and bundling further enhance traceability and handling efficiency, emphasizing technical precision and operational reliability for procurement professionals.

 

Sector Applications Delivering Measurable Value

These pp woven bags are extensively used in sectors including agriculture for grain and seed transport, industrial raw material packaging, and construction logistics. The products enhance supply chain integrity through moisture resistance and mechanical durability. Adoption of such high-grade bulk bags mitigates spoilage risks and supports compliance with storage standards. Their adaptability facilitates optimized warehouse management and streamlined transit processes, cementing their role as integral components in commercial packaging systems demanding strength, cost-effectiveness, and consistent quality assurance.

 

 

 

Product Advantages

 

Design and Structural Superiority Enabling Seamless Integration

UNIPACK's pp woven bags incorporate advanced woven polypropylene textiles tailored for enhanced tensile strength and abrasion resistance, positioning them among superior woven bags in wholesale supply. The bags’ modular design, compatible with various bundling and palletizing systems, facilitates efficient integration into automated packing lines. Innovations such as soft buffer strips minimize strap-induced damage, extending product lifespan. Our global manufacturing network ensures scalable production capacity while maintaining strict quality consistency, meeting the stringent requirements of bulk bag suppliers and logistics operators.

 

Enhanced Performance and Usability Driving Operational Efficiency

The moisture-resistant properties of our polypropylene bags ensure optimal protection of contents during prolonged storage and fluctuating environmental conditions. Their ease of handling, lightweight construction, and customizable sizing improve operator ergonomics and reduce handling time. Clear labeling options increase inventory control accuracy across supply chains. These characteristics contribute to cost reduction via lower damage rates and expedited supply workflows, delivering tangible ROI for procurement and operations teams managing product transport and storage logistics.

 

 

 

Use Scenarios

Agricultural Bulk Packaging and Grain Handling

In large-scale agricultural environments, pp woven bags serve as essential containment units for grains, seeds, and animal feed. Their abrasion-resistant, moisture-proof fabric safeguards product quality during storage and distribution. The bags’ compatibility with standard strapping and palletization systems promotes efficient bulk handling and stacking. Integration into grain processing and shipping workflows supports regulatory adherence and reduces material loss, making these bulk bags indispensable for farming cooperatives, commodity traders, and agricultural exporters aiming to maintain product integrity and operational throughput.

 

Industrial Material Packaging in Construction and Manufacturing

Within industrial and construction sectors, woven sacks are used to package raw materials like cement, sand, and mineral compounds. Their durability withstands harsh handling and transportation conditions while maintaining load security. The polypropylene composition ensures resistance to environmental contaminants and mechanical stress, supporting compliance with occupational safety standards. Incorporation into supply chain systems facilitates inventory management and reuse protocols, enhancing sustainability and cost-effectiveness. Consequently, these fibc bags and pp woven bags form crucial components of bulk material logistics in manufacturing plants and construction sites.

 

 

About Us

Our head office is located in Nantong city, Jiangsu province, in the Yangtze River Delta Economic Zone, one hour drive from urban Shanghai Economic Circle. Our production sites are located in Zibo Shandong, Chuzhou Anhui, Wenzhou Zhejiang China as well as Hanoi and Ho Chi Minh, Vietnam, and Cambodia.

Starting from working many years for a government owned trading company in 1994, our president, Mr. Gorroom Chong has extended his profession and knowledge in the textile field into founding his own private company - Nantong UNIPACK International Co., Ltd. (hereby referred to as UNIPACK).

Contact us now for your custom quote or to discuss your bulk packaging requirements.

 

 

FAQ

What materials are UNIPACK’s PP woven bags made from?

UNIPACK’s PP woven bags are manufactured using high-quality polypropylene fabric, ensuring durability, flexibility, and moisture resistance. This material provides abrasion resistance and strong tensile strength, making these polypropylene bags suitable for heavy-duty bulk packaging and industrial use.

 

Can UNIPACK provide customized labeling and bundling options for wholesale orders?

Yes, UNIPACK offers customizable labeling and secure bundling methods, including strapping with PP straps and stretch film with heat sealing or buckles. This enables efficient identification and careful handling during distribution, optimizing logistics for bulk packaging solutions.

 

What is the typical lead time and order size for wholesale PP woven bags?

Typical lead times range between 30 to 60 days depending on order size and product type. While the minimum order quantity is not specified on the product page, orders are expected to align with wholesale standards to ensure efficient production and delivery timelines.

 

How are UNIPACK’s woven polypropylene bags protected during transport and storage?

UNIPACK employs soft buffer strips to prevent strap damage on laminated woven bags and recommends stacking a maximum of 4–5 layers per pallet. These precautions maintain product integrity, reducing wear during handling and shipment of woven polypropylene bags.