100 Percent Recyclable Kraft Paper Valve Sacks Offering Optional Polyethylene Inner Coating Designed for Bulk Material Handling

The substrate must meet specific technical standards to ensure optimal performance and durability. It should possess the necessary strength, flexibility, and compatibility with other materials used in the product.

The valve port must be designed and manufactured according to precise technical criteria. This includes accuracy in dimensions, material quality, and sealing capabilities to guarantee proper function and reliability.

The forming process must adhere to stringent technical specifications to maintain product integrity. Proper shaping, molding, and finishing techniques are essential to achieve the desired form and structural stability.

Printing processes should comply with technical standards that ensure high-quality graphics, durability, and resistance to environmental factors. Attention to ink compatibility and print resolution is necessary for clear and long-lasting visual effects.

The overall performance of the product must satisfy defined technical criteria encompassing strength, durability, safety, and functionality. Rigorous testing and quality control measures are required to confirm that all performance standards are met.

The following industries are the primary focus:

• Building Materials Industry
• Chemical Industry
• Feed Industry
• Food Industry

Packaging Methods

Packaging is carried out with great attention to detail to ensure product integrity and convenience.

1. Individual Bag Packaging: After filling, each valve bag is automatically sealed without the need for additional sealing. This guarantees no material leakage, and the bags are then neatly arranged according to specifications.
2. Batch Packaging: Individually sealed valve bags of the same specification are stacked together (it is recommended not to exceed eight layers to prevent deformation). They are secured using plastic stretch film to avoid scattering or damage during handling.
3. Auxiliary Protection: Protective paper corners can be added during packaging to safeguard bag edges from compression and deformation while stacking or transporting. For bulk orders, carton boxes may be used for additional protection.
4. Labeling Standards: After packaging, labels are affixed on the outside indicating product name, specifications, weight, production date, moisture warnings, and other relevant information to facilitate identification and storage.

Transportation Methods

Ensuring safe and efficient delivery is a critical part of the process. The following transportation practices are implemented:

1. Transport Vehicles: Enclosed vehicles such as box trucks and containers are used to prevent exposure to rain, moisture, dust, and other contaminants, thereby protecting both the bags and the materials inside.
2. Loading Requirements: Packaged valve bags are neatly and firmly stacked inside the vehicle to avoid tilting, squeezing, or collisions that could cause damage or leakage. Different specifications and materials are separated and clearly labeled within the cargo space.
3. Transportation Precautions: During transit, contact with sharp objects, excessive heat, or humid environments is avoided. Sudden shocks, tipping, or violent motion are also prohibited to prevent valve loosening or bag damage.
4. Delivery Assurance: Collaboration with professional logistics teams ensures the choice of optimal transport plans according to order quantity and delivery location. The entire shipment is tracked to guarantee timely and intact arrival. For bulk orders, door-to-door delivery services are available, assisting customers with unloading and verification.