Vacuum Bag

Product Overview

Industrial and commercial vacuum bags provide controlled atmosphere packaging by extracting air to establish a hermetic seal. Engineered for automated chamber machinery and external suction sealers, these flexible packaging systems protect perishable food products, precision components, and sensitive assemblies from oxidation, moisture penetration, and mechanical stress during global transport and storage.

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Structure & Material Options

Barrier performance depends on multi-layer co-extrusion or adhesive lamination configurations. The polymer layout dictates puncture thresholds, thermoforming depth, and gas permeability.

PA/PE (Polyamide / Polyethylene):

Standard transparent structure. Polyamide delivers puncture resistance and an oxygen barrier; polyethylene provides low-temperature heat-seal integrity and moisture protection. Standard gauge: 70um to 200um.

PET/AL/PE (Aluminum Foil Laminate):

Absolute barrier film blocking light, oxygen, and water vapor transmission. Specified for moisture-sensitive electronics, coffee beans, and pharmaceutical bulk active ingredients.

PET/PE (Polyethylene Terephthalate / Polyethylene):

Delivers structural rigidity, surface gloss, and print clarity. Deployed primarily for dry food items and non-formable retail packaging.

PA/EVOH/PE:

Integrates an Ethylene Vinyl Alcohol copolymer core layer for low oxygen transmission rates (OTR), extending shelf life for modified atmosphere packaging (MAP).

Key Features & Packaging Performance

Hot-Tack Seal Strength:

Maintains hermetic seal integrity under stress even when minor particulate contamination exists on the sealing interface.

Puncture Resistance:

High elongation at break prevents bone-in meat edges or sharp industrial hardware from piercing the film under high vacuum pressure.

Thermal Operating Range:

Withstands blast freezing down to -40C and thermal pasteurization or sous-vide processing up to 100C, depending on the polymer grade.

Optical Clarity:

High light transmission supports automated vision inspection systems and visual retail presentation.

Sizes / Capacities / Configurations

Chamber Vacuum Pouches (2-Side / 3-Side Seal):

Widths from 100 mm to 600 mm; lengths up to 1000 mm. Thickness ranges from 50um to 250um.

Stand-Up Pouch (Doypack) Vacuum Formats:

Bottom gusset configurations providing upright shelf stability.

Embossed Channel Bags:

Micro-channel surface texture on one side for air evacuation via external suction equipment. Available in pre-cut sizes (e.g., 200x300 mm, 250x400 mm) and continuous rolls.

Heavy-Duty Industrial Liners:

Large-format configurations engineered for drums, gaylord boxes, and bulk transport totes.

Applications

Food Processing:

Fresh primals, poultry, processed cheese, seafood, roasted coffee beans, and sous-vide meal components.

Industrial Hardware:

CNC machined gears, bearings, and precision steel tools requiring anti-corrosion protection.

Electronics (ESD):

Static-shielding vacuum enclosures for printed circuit boards (PCBs) and semiconductor components.

Medical & Pharmaceutical:

Sterile procedural kits, diagnostic reagents, and bulk raw pharmaceutical powders.

Printing & Finishing Options

01.

Flexographic Printing:

Up to 10-color printing utilizing solvent-free or low-migration water-based inks compliant with direct food-contact regulations.

02.

Rotogravure Printing:

High-resolution cylinder printing for high-volume orders requiring fine text and photographic branding.

03.

Surface Finishes:

Matte varnish, gloss lacquer, or registered matte zones for tactile contrast and light diffusion.

04.

Easy-Open Features:

Laser scoring, directional tear notches, and recloseable zipper integrations (press-to-close or slider) for multi-opening requirements.

Manufacturing & Quality Control

Extrusion Machinery: 5-layer and 9-layer blown film extrusion lines equipped with automatic gauge profile control systems to maintain uniform film thickness.

Converting Line Setup: High-speed slitting, pouch-making, and side-seal systems featuring servo-driven web tension control to prevent bag curling or distortion.

In-Line Inspection: Automated camera systems detect pinholes, gel inclusions, and seal anomalies during continuous production.

Laboratory Testing Protocols:
Tensile Strength & Elongation: ASTM D882

Puncture Resistance: ASTM F1306

Seal Strength: ASTM F88

Oxygen Transmission Rate (OTR): ASTM D3985

Water Vapor Transmission Rate (WVTR): ASTM F1249

Customization & OEM/ODM

Dimensional Engineering:

Custom micron thickness, width, length, and gusset configurations manufactured to equipment specifications.

Resin Formulation:

Tailored co-extrusion blends adjusted for sealing window temperatures, puncture thresholds, or retort cycle requirements.

Regulatory Documentation Packages:

Supplied with compliance data matching FDA 21 CFR 177.1520, EU Regulation 10/2011, REACH, and ISO 22000 / BRCGS standards.

Selection Guide

01.

Fresh Meat / Poultry | PA/PE Co-extrusion | 70um - 90um | High puncture resistance, contour cling

02.

Processed Cheese / Small Goods | PA/EVOH/PE | 80um - 120um | Extended shelf life, low OTR

03.

Electronics / Hardware | PET/AL/PE Laminate | 100um - 150um | Zero moisture/oxygen transmission, ESD safe

04.

External Suction Packaging | PA/PE Embossed | 90um - 100um | Micro-channels enable external air extraction

Frequently Asked Questions

Q: What is the minimum order quantity (MOQ) for custom-printed vacuum bags?

A: MOQ is calculated based on film width and printing cylinder circumference, typically starting at 5,000 meters of rollstock or 10,000 to 30,000 individual pouches per size variant, depending on material complexity and color count.

Q: Are these bags compatible with both chamber and external clamp vacuum sealers?

A: Smooth multi-layer PA/PE pouches require chamber vacuum equipment. External suction machines (clamp style) require embossed channel bags or micro-textured rolls to allow air evacuation through surface channels.

Q: What compliance documentation is provided for food-contact applications?

A: Full migration test reports, declarations of compliance (DoC) referencing FDA 21 CFR and EU 10/2011 standards, and BRCGS packaging material audit certificates are supplied prior to shipment.

Q: How is seal failure prevented during thermal processing or freezing?

A: Seal integrity is controlled by matching the sealing temperature window of the internal sealant layer (PE blend) and verifying seal peel strength via tensile testing in the laboratory during production runs.

Q: What is the standard production lead time for bulk orders?

A: Standard production runs require 20 to 25 business days following technical drawing sign-off and printing cylinder approval. Repeat orders without structural or artwork changes average 15 business days.

Q: Can anti-corrosion (VCI) properties be integrated into industrial vacuum bags?

A: Yes. Vapor Corrosion Inhibitor (VCI) masterbatch can be co-extruded into the internal polyethylene layer to protect ferrous and non-ferrous metal parts from oxidation during long-term maritime transit or warehouse storage.

We are one of the most experienced vacuum bag manufacturers and suppliers in China, specialized in providing high quality custom service. Please feel free to buy bulk vacuum bag made in China here from our factory. For quotation and free sample, contact us now.

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