Color-printed flat-bottom woven fertilizer packaging bags

Applicable materials: 
Compound fertilizers, urea, potash fertilizers, phosphate fertilizers, organic fertilizers, bio-organic fertilizers, blended fertilizers (BB fertilizers), water-soluble fertilizers, controlled-release and slow-release fertilizers, nitrate-based fertilizers, and other granular or powdered chemical fertilizer products.

Key features: 
The bag opening is smooth and easy to open and fill, making it compatible with a wide range of filling equipment as well as manual production lines. The sealing method is highly flexible, allowing customers to choose seam sealing, heat sealing, or ultrasonic sealing based on their specific needs. A dual-layer structure featuring a laminated outer film and an inner liner ensures excellent leak-proof and moisture-resistant performance, effectively preventing fertilizer from caking. The bag body is flat and stable for stacking, with outstanding durability for long-distance transportation and repeated handling. Optional anti-aging additives can be incorporated to prevent embrittlement during outdoor storage. The printing is high-quality, with clear and prominent nutrient labeling that enhances brand visibility. Overall, the solution offers cost-effectiveness, reducing material costs by 8% to 12% compared with M-seal bags, making it ideal for large-volume procurement.

Core Advantages: 
Moisture-proof and anti-caking, tensile strength and burst resistance, cost-effective, compatible with multiple filling methods, easy to seal, easy to palletize, and resistant to fertilizer corrosion.

Material and Craftsmanship: 
The base material is a woven fabric made of PP (polypropylene) or HDPE (high-density polyethylene), with a composite structure consisting of a PP woven fabric laminated to a PE barrier film (either by lamination or co-extrusion lining). The bag style is a flat-bottom pouch, with options for sewn bottom, heat-sealed bottom, or ultrasonically sealed bottom. Printing is carried out using a 2- to 7-color rotogravure color printing process with lamination, resulting in vibrant, abrasion-resistant, and fertilizer-corrosion-resistant graphics.

Sealing method: 
After filling, sealing can be performed according to customer requirements using stitch-sealing, heat-sealing (which requires an inner bag), tie-sealing, or ultrasonic sealing.

Applicable filling method: 
Compatible with screw fillers, impeller fillers, pneumatic fillers, gravity fillers, trough-belt fillers, and manual filling (for semi-automatic or small-batch production lines).

Tensile strength: 
Testing has confirmed that the tensile strength reaches ≥700 N/50 mm, fully meeting the requirements for stacking loads of 25 to 50 kg and for long-distance transportation.

Moisture resistance: 
The water vapor transmission rate is reduced by more than 90% (due to the laminated film and inner-bag structure), effectively preventing fertilizer from becoming damp and caked and minimizing nutrient loss, with a shelf life of over six months.

Corrosion resistance grade: 
Meeting five-star standards, this product exhibits exceptional resistance to acidic and alkaline components, salts, and various additives in fertilizers, making it particularly suitable for highly corrosive fertilizer formulations containing sulfur or chlorine.

Packaging drop test: 
Under a 50 kg load condition, following a 1.2-meter free-fall test, the product remained intact and showed no leakage on all six drop faces.

Printing Standards: 
Solvent-resistant ink is used, providing excellent corrosion resistance. Barcode and QR code scanning achieves a 100% recognition rate, supporting product traceability, fertilizer application guidance inquiries, and anti-counterfeiting verification.

Customization Scope: 
Supports multi-color overprinting, enabling the printing of brand logos, product names, nutrient content tables (N-P-K ratios), usage instructions, fertilization recommendations, precautions, and other information. Optional additions include warning labels such as “Moisture-Proof,” “Sunlight-Resistant,” “Do Not Mix with Seeds,” “Keep Out of Reach of Children,” and “Not for Chlorine-Sensitive Crops,” as well as barcodes, QR codes, measurement markings (e.g., 25 kg, 40 kg, 50 kg scale lines), environmental recycling symbols, and SKULL hazard symbols (for nitrate-based fertilizers or flammable formulations).

Environmental Compliance: 
The product is manufactured using virgin materials, is odorless and dust-free, and is recyclable. We can provide hazardous packaging export certification to meet the relevant requirements of the destination port.

Packaging specifications: 
All specifications can be customized to meet customer requirements, including bag fill weight (commonly ranging from 25 kg to 50 kg, with typical sizes of 25 kg, 40 kg, and 50 kg), bag dimensions (length × width), sealing method, number of inner liner layers (no inner liner, single-layer PE, or double-layer PE), and printing area (single-sided, double-sided, or full-color).

Price and Minimum Order Quantity: 
Specific pricing and minimum order quantities are negotiable. Please feel free to call or write for a quotation.

Applicable to: 
This product is suitable for manufacturers of compound fertilizers, urea/potash/phosphate fertilizer plants, organic fertilizer producers, bio-organic fertilizer manufacturers, blended (BB) fertilizer processors, water-soluble fertilizer producers, nitrate fertilizer producers, and fertilizer export traders.

Special Note:

Recommendations for Choosing Between Flat-Edge Fertilizer Bags and M-Edge Fertilizer Bags 
Flat-bottom fertilizer bags feature a simple structure and lower cost, with small storage volume when empty, making them ideal for containerized export. Their flexible sealing options accommodate both manual filling and semi-automatic production lines, particularly well-suited to production environments characterized by frequent product mix changes and flexible batch sizes. M-seam fertilizer bags are formed into a three-dimensional shape, offering superior stand-up stability and faster filling speeds, making them more appropriate for large-scale, high-speed automated production lines and brand customers with stringent requirements for the aesthetic quality of palletizing. To further enhance moisture-barrier performance or meet hazardous-packaging export regulations, it is recommended to add a PE inner liner to the flat-bottom bag and employ heat-sealing.