flat-mouth kraft paper sacks，food-grade woven packaging bags, food ingredient bags

Applicable materials: 
Rice, millet, mixed grains (such as red beans, mung beans, soybeans, and black rice), wheat flour, white granulated sugar, brown sugar, table salt, coffee beans, nuts (such as walnuts, pistachios, and almonds), pet food (dog food, cat food), dried mushrooms (wood ear and shiitake), tea leaves, snacks (potato chips and puffed snacks), seasoning powders, milk powder, and other dried food products.

Key features: 
The outer kraft paper layer delivers a natural, premium texture that enhances product value, making it ideal for premium food brands. The bag opening is smooth and even, easy to open and fill, and compatible with a wide range of filling equipment as well as manual production lines. Sealing options are flexible, allowing customers to choose stitching, heat sealing, or tie-sealing based on their specific needs. The three-layer composite structure ensures excellent leak-proof and moisture-resistant performance, effectively keeping food dry and crisp. The bag body remains flat and stable during stacking, making it suitable for long-distance transportation and shelf display in supermarkets and retail outlets. Optional anti-aging additives can be incorporated to prevent brittleness when stored outdoors or in warehouses. The printing is exquisite and the colors vibrant, with the kraft paper base enhancing the visibility of brand logos. Overall, the cost is moderate; compared with pure kraft paper bags, this design offers higher strength at a lower cost, making it well-suited for large-scale procurement.

Core Advantages: 
Moisture- and mold-resistant, tensile-strength and tear-resistant, with a natural kraft paper appearance, cost-effective, compatible with multiple filling methods, easy to seal, and easy to palletize.

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 kraft paper and lined on the interior with a PE barrier film (either coated or co-extruded). This creates a three-layer composite structure: “kraft paper + woven fabric + PE film.” The bag style is a flat pouch, with bottom options including sewn-in bottom (requiring an inner 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 natural, vintage texture of the kraft paper base enhances the aesthetic appeal and is ideal for showcasing food brand image.

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 sealing strips or liner paper), heat-sealing (requiring a PE inner bag), tie-sealing (suitable for small packages with folded-edge sealing), or ultrasonic sealing.

Applicable filling method: 
Compatible with screw fillers, impeller fillers, pneumatic fillers, gravity 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 90% (thanks to a three-layer barrier structure consisting of kraft paper, woven fabric, and a PE inner bag), effectively preventing moisture absorption, mold growth, insect infestation, and spoilage of foods such as rice, coarse grains, and flour, with a shelf life of over 12 months.

Corrosion resistance grade: 
Meets four-star standards and exhibits excellent resistance to fats, acidic ingredients (such as coffee and dried fruits), and salt in food.

Packaging drop test: 
Under a 25 kg load condition, following a 1.2-meter free-fall test, the package remained intact and showed no leakage after being dropped on all six sides.

Printing standards: 
Food-grade, solvent-resistant inks are used, ensuring compliance with regulations governing food-contact materials and labeling standards. Barcode and QR code scanning achieves a 100% recognition rate, supporting product traceability, access to consumption guidelines, and anti-counterfeiting verification.

Customization Scope: 
Supports multi-color overprinting, enabling the printing of brand logos, product names, net content, nutrition facts panels, consumption instructions, production dates (with a designated area for inkjet coding), shelf lives, storage conditions, and other information. Optional features include warning labels such as “Moisture-Proof,” “Sunlight-Resistant,” and “Keep Sealed After Opening”; barcodes and QR codes; measurement markings (e.g., 1 kg, 2.5 kg, 5 kg, 10 kg scale lines); environmental recycling symbols; transparent windows to showcase the product contents and enhance consumer trust; and vent holes for foods that require breathability and gas release, such as fresh produce and grains.

Environmental Compliance: 
The product is manufactured using virgin materials: the kraft paper layer is biodegradable, while the woven fabric and PE layer are recyclable. We can provide food-grade safety certifications and export-related qualifications to meet the market access requirements of overseas markets such as the European Union, the United States, and Japan.

Packaging specifications: 
All specifications can be customized to meet customer requirements, including fill weight (commonly ranging from 0.5 kg to 25 kg, with typical sizes of 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), number of inner bag layers (single-layer PE or double-layer PE), whether to include vent holes, whether to add a transparent window, and print area (single-sided, double-sided, or full-color), among others.

Applicable to: 
This product is suitable for rice processing plants, mixed-grain packaging enterprises, flour mills, sugar companies, designated salt producers, coffee roasters, nut processing facilities, pet food manufacturers, dried mushroom growers and processors, snack brands, seasoning companies, and food export traders.

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

Special Note:

Recommendations for Choosing Kraft Paper Food Woven Bags Over Other Food Packaging Bags 
Color-printed, laminated, flat-mouth kraft paper woven bags combine the natural texture of kraft paper with the high strength of woven bags, offering a premium appearance and excellent moisture resistance—making them ideal for premium rice, mixed grains, coffee beans, and other foods that demand both an attractive package look and superior shelf-life preservation. Pure woven bags (without a kraft paper layer) are more cost-effective and even stronger, making them well-suited for bulk grain or feed products. Pure kraft paper bags boast a high-end aesthetic but lower strength and higher costs, making them appropriate for lightweight, high-end food items such as artisanal coffee and tea. Multi-layer composite paper-plastic-aluminum foil bags deliver exceptional moisture and oxygen barrier properties, making them perfect for foods with extremely stringent freshness requirements, such as powdered milk and premium teas. Customers can select the most suitable packaging solution based on product positioning, budget constraints, and desired shelf life.