Vented Pre-Opened Bags on a Roll are pre-opened bags supplied on a roll developed around this product-specific requirement: Specified vent-hole pattern and placement subject to product and equipment review. Bag material and vent pattern selected around air-release, containment and packing requirements. It is intended for soft goods, foam items and other suitable products that trap air during loading or sealing. Runsheng manufactures this product to confirmed project requirements, with vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation reviewed before production.
About Vented Pre-Opened Bags on a Roll
- Format: Pre-opened bags supplied on a roll
- Product distinction: Specified vent-hole pattern and placement subject to product and equipment review
- Material or construction: Bag material and vent pattern selected around air-release, containment and packing requirements
- Critical specification: vent-hole diameter, count, pattern and position
- Customization: vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation
Key Specifications
| Product format | Pre-opened bags supplied on a roll |
|---|---|
| Primary differentiator | Specified vent-hole pattern and placement subject to product and equipment review |
| Material or construction | Bag material and vent pattern selected around air-release, containment and packing requirements |
| Critical specification | vent-hole diameter, count, pattern and position |
| Thickness or caliper | Quote-specific; requested mil or micron value must be confirmed for the selected structure |
| Customization | vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation |
| Final approval basis | Buyer specifications, application review, samples or drawings, and confirmed production requirements |
Available Vented Pre-Opened Bags on a Roll Sizes
Frequently specified dimensions for this application include the examples below. They are producible pre-opened-bag configurations, not fixed limits, and final sizing must account for the product, opening clearance, material, filling, sealing and equipment.
| Width × Length | Approximate metric size | Product-specific use |
|---|---|---|
| 5 × 8 in | 127 × 203 mm | small soft goods |
| 6 × 8 in | 152 × 203 mm | compact bulky items |
| 6 × 10 in | 152 × 254 mm | air-trapping packs |
| 8 × 10 in | 203 × 254 mm | larger compressible products |
| 10 × 12 in | 254 × 305 mm | broad vented packs |
Custom widths and lengths can be manufactured according to product dimensions, packaging equipment, filling, sealing, material and application requirements.
Product-Specific Features
The design centers on vent-hole diameter, count, pattern and position. Unlike a generic package, the quotation must connect the material and construction to soft goods, foam items and other suitable products that trap air during loading or sealing. Any functional performance requirement must be defined by the buyer and confirmed rather than inferred from the product name.
Custom Manufacturing Options
Quote variables include vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation. Availability and final construction depend on technical review; optional features are not treated as standard unless confirmed for this product and application.

Automation and Packaging Equipment
Equipment fit is not assumed. Review air release during filling, sensor path, hole placement, indexing and sealing zones. Provide equipment drawings or specifications, the current package where available, filling and sealing details, and operating constraints before the final format is approved.

How Vented Pre-Opened Bags on a Roll Work
Vented Pre-Opened Bags on a Roll are presented as connected, pre-opened bags on a roll. During packing, the accessible opening is presented for loading; the filled bag is separated at the specified perforation and sealed by the selected process. The operating result depends on vent-hole diameter, count, pattern and position. The specified vent-hole pattern and placement subject to product and equipment review must therefore be confirmed with the roll, feed and sealing requirements rather than assumed to fit every machine.
Applications
Vented Pre-Opened Bags on a Roll are intended for soft goods, foam items and other suitable products that trap air during loading or sealing. Suitability depends on the packed product, handling environment, required function and downstream process. Buyers should identify critical risks or acceptance criteria so the proposed construction can be evaluated.

How to Select Vented Pre-Opened Bags on a Roll
Start with vent-hole diameter, count, pattern and position. Then confirm vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation. Buyer specifications, application review, samples or drawings, and confirmed production requirements. This prevents a material, fit, presentation or equipment assumption from being treated as a confirmed production specification.
Review the Pre-Opened Bags on a Roll category for the broader product family, or compare Custom-Size Pre-Opened Bags on a Roll when that configuration may better match the application.
What distinguishes Vented Pre-Opened Bags on a Roll from related configurations?
Specified vent-hole pattern and placement subject to product and equipment review. The distinction must be evaluated together with the packed product, process and required presentation or functional result.
What must be confirmed before Vented Pre-Opened Bags on a Roll are manufactured?
Confirm vent-hole diameter, count, pattern and position, together with vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation. Exact values remain project-specific unless they are stated in the specification or size tables above.
How to Specify and Request a Quote
Provide finished dimensions, requested thickness or material caliper, material or functional requirement, packed product, quantity, artwork, construction details, intended application, filling and sealing method, packing format, required date, and equipment information where relevant. Include a current sample or controlled drawing when fit or process compatibility is critical.
Frequently Asked Questions
How is the vent pattern selected?
The answer depends on vent-hole diameter, count, pattern and position. Supply the relevant product, process and acceptance information so the requirement can be confirmed in the quotation.
Do vent holes reduce containment?
This option can be evaluated when the required construction, material, dimensions and application are supplied. It is not assumed to be available for every configuration.
Can holes be kept outside the seal area?
Provide a sample or drawing, expected quantity and the operating or presentation requirement. The final recommendation follows technical and artwork review rather than a generic compatibility statement.
What distinguishes Vented Pre-Opened Bags on a Roll from related configurations?
Specified vent-hole pattern and placement subject to product and equipment review. The distinction must be evaluated together with the packed product, process and required presentation or functional result.
What must be confirmed before Vented Pre-Opened Bags on a Roll are manufactured?
Confirm vent-hole diameter, count, pattern and position, together with vent pattern, hole position, dimensions, thickness, material, perforation and roll presentation. Exact values remain project-specific unless they are stated in the specification or size tables above.













