1. Material Selection: Balancing Safety and Durability

Material selection for pre-opened roll bags is the primary condition for ensuring packaging safety and durability. Common materials available on the market include PE (polyethylene) and PP (polypropylene), each with unique performance characteristics.

Common Material Comparison:

Compatibility Considerations with All-in-One Machines:

Different materials exhibit varying ink adhesion and temperature resistance. PE material is sensitive to static electricity, so it is recommended to choose a machine with anti-static functionality. Composite bags (aluminum foil/PO material) require more precise sealing temperature control, ensuring the equipment has accurate temperature regulation capabilities. It is advisable to select the most compatible material based on your all-in-one machine’s printing technology requirements to ensure clear and durable print results.

Jiuyi Solution: Jiuyi Intelligent Equipment’s self-developed pre-opened roll bags are made from high-quality food-grade PE material, deeply compatible with the JYZN series all-in-one machines—ensuring operational stability from the consumables source.

2. Specification Matching: Precise Alignment with Production Needs

The specification selection of pre-opened roll bags must closely align with production requirements. Oversized bags cause material waste, while undersized bags fail to meet packaging needs.

Key Specification Parameters:

1. Width and Length
Calculate precisely based on product dimensions to ensure smooth insertion and accurate sealing position. Reference range: Width 30–300mm, Length 80–400mm.

2. Thickness

• Light items (<1kg): 0.04–0.06mm – cost-effective

• Medium weight (1–5kg): 0.06–0.08mm – balances strength and economy

• Heavy items (>5kg): 0.08–0.15mm – prevents tearing

3. Compatibility with the Machine Feed System
Ensure the roll core inner diameter (typically 3 inches/76mm), roll diameter, and bag pitch match the machine’s design parameters. The pre-opened bag edges must be neat and flat to prevent jamming.

Jiuyi Solution: The JYZN series all-in-one machines support quick changeovers between different bag specifications. The proprietary servo tension control technology ensures consistent film flatness throughout the process, guaranteeing seal quality from the source.

3. Bag Design: The Key to Packaging Efficiency

The bag design of pre-opened roll bags directly affects on-machine performance.

Common Bag Type Comparison:

Jiuyi Solution: Jiuyi supports customization of various bag types, including compartment bag designs, to meet multi-component product kit packaging needs.

4. Perfect Integration with Printing & Bagging All-in-One Machines

When selecting pre-opened roll bags, consideration must be given not only to material and specifications but also to the degree of integration with the all-in-one machine.

Key Integration Factors:

1. Print Compatibility
The all-in-one machine prints barcodes, QR codes, logos, and other information directly onto the bag surface, replacing paper labels. Ensuring a flat bag surface and good ink adhesion is the prerequisite for achieving clear printing.

2. Sealing Compatibility
Different materials require different sealing temperatures. The equipment must have precise temperature control capabilities to ensure smooth and firm seals. Servo torque-controlled sealing technology effectively eliminates sealing wrinkles.

3. Smooth Feeding
Pre-opened edges must be neat and non-adhesive to ensure smooth suction, opening, and bagging operations in one continuous motion, minimizing downtime and adjustments.

Jiuyi Solution: Jiuyi Intelligent Equipment Co., Ltd. is the only manufacturer worldwide capable of integrating printing and bagging into a single all-in-one machine. The equipment offers high flexibility and compatibility, supporting a wide range of print specifications from 53×55mm to 107×115mm. The company also provides custom roll bag solutions—offering a one-stop service from equipment to consumables.

5. Common Consumable Issues and Solutions

6. Case Study: Successfully Improving Packaging Efficiency

A sensor manufacturer implemented Jiuyi Intelligent Equipment’s printing & bagging all-in-one machine with matching pre-opened roll bags, achieving significant improvements in packaging efficiency. Through precise selection of PE material and custom specifications, combined with the machine’s intelligent operation, the company realized a fully automated packaging process from product input to finished goods output. This greatly reduced manual intervention, lowered production costs, and improved packaging qualit