Multi-wall bags Eco-friendly sacks pesticide woven packaging bags

Applicable materials: 
Insecticides, fungicides, herbicides, rodenticides, plant growth regulators, biopesticides, granules, powders, wettable powders, and other pesticide formulations.

Key features: 
The outer kraft paper layer imparts a professional, sophisticated texture, enhancing the brand image and aligning with the premium positioning of pesticide products. The bag opening is smooth and even, making it easy to open and fill, and compatible with both high-speed automated filling lines and manual filling operations. Sealing options are flexible: seam-sealing, heat sealing, or ultrasonic sealing can be selected based on customer requirements, with ultrasonic sealing offering pinhole-free seals and superior leak-proof performance. A three-layer composite structure—kraft paper, woven fabric, and a high-barrier film—ensures outstanding resistance to leakage, moisture absorption, and volatilization, effectively maintaining the stability of active pesticide ingredients. The bag body remains flat and stable during stacking, making it well-suited for long-distance transportation and warehouse storage. Optional additives such as anti-aging agents and UV stabilizers further enhance durability, preventing embrittlement and color fading when stored outdoors or in warehouses. The printing is exquisite, with clear and highly visible warning labels that comply with regulatory requirements. Overall, the cost is moderate: lower than that of pure aluminum foil bags yet offering higher strength, making it ideal for large-volume procurement and export orders.

Core Advantages: 
Moisture- and leak-proof, tensile-strength and puncture-resistant, with a professional kraft-paper appearance, chemically corrosion-resistant, compatible with high-speed filling lines, leak-proof, and compliant with pesticide packaging regulations.

Material and Craftsmanship: 
The base material consists of a woven fabric made from PP (polypropylene) or HDPE (high-density polyethylene), laminated on the exterior with food-grade or industrial-grade kraft paper, and internally paired with a high-barrier PE film or an aluminum foil barrier layer (either as a laminated coating or a co-extruded inner liner), thereby forming a three-layer composite structure of “kraft paper + woven fabric + high-barrier film.” The bag style is a flat pouch, with bottom options including sewn-in bottom (requiring a sealing strip or liner), heat-sealed bottom, or ultrasonically sealed bottom. Printing is carried out using 2- to 7-color gravure color printing with lamination, resulting in exquisite patterns and vibrant colors; the kraft paper base imparts a professional and dignified texture, making it ideal for showcasing pesticide brand imagery and safety warning labels.

Sealing method: 
After filling, sealing can be performed according to customer requirements using one of the following methods: stitch-sealing with a bag-sewing machine (requiring an additional sealing strip or liner), heat-sealing (requiring a high-barrier inner pouch), ultrasonic sealing (no needle holes, offering excellent leak-proof performance), or tie-sealing (suitable for small packages).

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 a tensile strength of ≥700 N/50 mm, fully meeting the requirements for stacking loads ranging from 1 to 25 kg and for long-distance transportation.

Moisture resistance: 
The water vapor transmission rate is reduced by more than 95% (in a three-layer structure consisting of kraft paper, woven fabric, and a high-barrier inner pouch), effectively preventing pesticides from absorbing moisture, decomposing, caking, and losing efficacy, with a shelf life of over 24 months. An aluminum foil layer can be optionally added, reducing the water vapor transmission rate by more than 98%, making it suitable for pesticide formulations with extremely stringent moisture-proof requirements.

Corrosion resistance grade: 
Meets five-star standards, exhibiting strong resistance to organic solvents such as benzene derivatives, esters, alcohols, and ketones, as well as acidic and alkaline components found in pesticides, thereby ensuring that the packaging remains intact—without softening, becoming brittle and cracking, or leaking—even after prolonged contact with pesticides.

Packaging drop test: 
Under a 25 kg load condition, the product passed a 1.2-meter free-fall test with no breakage or material leakage after being dropped on all six sides.

Printing standards: 
The ink used is solvent-resistant and chemically corrosion-resistant, fully complying with the Measures for the Administration of Pesticide Labels and Instructions and GB 3796-2018 General Requirements for Pesticide Packaging, among other relevant regulations. Barcode and QR code scanning and recognition rates reach 100%, supporting product traceability, access to usage instructions, and anti-counterfeiting verification. Warning labels—such as the SKULL symbol, classification labels for “Highly Toxic,” “Poisoning,” and “Slightly Toxic,” and safety interval markings—can be precisely printed in accordance with regulatory requirements.

Customization Scope: 
Supports multi-color overprinting, enabling the printing of brand logos, product names, active ingredient content, pesticide registration numbers, production license numbers, product standard numbers, usage instructions, pre-harvest intervals, detoxification methods, precautions, and other information. It also allows for the addition of warning labels (such as skull symbols, hazard category icons, “Keep Out of Reach of Children,” “Protect from Moisture and Sunlight,” and “Do Not Store with Food”), barcodes, QR codes, designated areas for anti-counterfeiting labels, metrology markings, environmental recycling symbols, as well as spray-printed fields for batch numbers and production dates.

Environmental Compliance: 
The product is manufactured using virgin materials; the kraft paper layer is partially biodegradable, while the woven fabric and barrier layer are recyclable. We can also provide export certification for hazardous-material packaging.

Key features: 
The outer kraft paper layer imparts a professional, sophisticated texture, enhancing the brand image and aligning with the premium positioning of pesticide products. The bag opening is smooth and even, making it easy to open and fill, and compatible with both high-speed automated filling lines and manual filling operations. Sealing options are flexible: seam-sealing, heat sealing, or ultrasonic sealing can be selected based on customer requirements, with ultrasonic sealing offering pinhole-free seals and superior leak-proof performance. A three-layer composite structure—kraft paper, woven fabric, and a high-barrier film—ensures outstanding resistance to leakage, moisture absorption, and volatilization, effectively maintaining the stability of active pesticide ingredients. The bag body remains flat and stable during stacking, making it well-suited for long-distance transportation and warehouse storage. Optional additives such as anti-aging agents and UV stabilizers further enhance durability, preventing embrittlement and color fading when stored outdoors or in warehouses. The printing is exquisite, with clear and highly visible warning labels that comply with regulatory requirements. Overall, the cost is moderate: lower than that of pure aluminum foil bags yet offering higher strength, making it ideal for large-volume procurement and export orders.

Packaging specifications: 
All specifications can be customized to meet customer requirements, including fill weight (commonly ranging from 0.1 kg to 25 kg, with typical sizes of 0.1 kg, 0.5 kg, 1 kg, 2.5 kg, 5 kg, 10 kg, 15 kg, 20 kg, and 25 kg), bag dimensions (length × width), sealing method (sewn bottom, heat-sealed bottom, or ultrasonic sealing), inner-bag material (PE barrier film or aluminum foil), number of inner-bag layers (single-layer or double-layer), inclusion of a vent valve (for gas-producing pesticides), 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. Export certification for hazardous materials packaging (UN certification) requires a separate application, and details on minimum order quantities and delivery schedules can be obtained by contacting our sales team.

Applicable to: 
This product is suitable for active ingredient manufacturers of pesticides, pesticide formulation processing plants, biopesticide R&D and manufacturing enterprises, rodenticide producers, plant growth regulator manufacturers, agrochemical export traders, and other pesticide production and business entities that are required to comply with hazardous materials packaging regulations.