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Thickened Kraft Bubble Bag
The Thickened Kraft Bubble Bag is a heavy-duty dual-layer protective packaging solution combining a reinforced kraft paper outer layer with a thickened, large-diameter bubble film inner layer — engineered for manufacturers, distributors, and freight forwarders shipping heavy industrial components, precision instruments, or high-value assemblies where standard kraft bubble bags have proven insufficient under weight or long-distance transit conditions. Compared with standard kraft bubble bags, the thickened specification uses a substantially heavier bubble film (100–150 micron) with a larger bubble diameter (28mm) to maintain cushioning integrity under heavier product loads and extended handling periods. Manufactured at our facility and supplied to industrial packaging operations across Vietnam, Thailand, Malaysia, Singapore, and Indonesia.
Structure & Materials
The key performance difference between thickened and standard kraft bubble bags lies in the bubble film construction. Standard bags use 70–80 micron film with 10mm diameter bubbles — adequate for general component packaging. Thickened bags use 100–150 micron film with 28mm diameter bubbles, providing significantly greater cushioning depth and preventing bubble collapse under the weight of heavier products. The reinforced kraft paper outer layer (100–120 GSM, versus 70–100 GSM in standard bags) provides additional puncture and tear resistance for demanding freight handling conditions.
Specifications
| Outer Layer Material | Reinforced kraft paper, 100–120 GSM |
| Inner Layer Material | Thickened polyethylene (PE) bubble film |
| Bubble Film Thickness | 100–150 micron |
| Bubble Diameter | 28 mm (large bubble) |
| Bubble Height | 10 mm |
| Recommended Product Weight | Up to 5–10 kg depending on bag dimensions |
| Closure Type | Heat-seal |
| Custom Sizes | Yes — all dimensions custom manufactured |
| Custom Printing | Available on kraft paper outer surface |
| Eco Credentials | Biodegradable kraft paper outer layer; PE bubble film recyclable as clean PE plastic |
| MOQ | Small batch orders welcome — contact us for volume pricing |
Applications
Heavy Electronic Assemblies
Large PCB assemblies, power supplies, server components, and industrial control units require cushioning that maintains performance under the weight of the product itself. Standard bubble film collapses under heavier assemblies, reducing cushioning effectiveness. Thickened bags maintain bubble integrity throughout transit for components typically in the 2–10 kg range.
Precision Industrial Components
Precision-machined metal components, measurement instruments, and calibrated equipment require maximum cushioning combined with puncture resistance from the heavy kraft outer layer. The 100–120 GSM reinforced kraft paper withstands the sharp profiles of machined parts that would pierce standard-weight kraft bags.
Automotive and Aerospace Parts
High-value components for automotive and aerospace applications are typically heavy, precisely manufactured, and expensive to replace if damaged. Thickened construction maintains cushioning integrity across the extended handling periods and sustained container vibration of long-distance ocean freight — conditions that accelerate bubble collapse in standard packaging.
Optical Instruments and Sensitive Equipment
Microscopes, industrial cameras, optical sensors, and sensitive measurement equipment combine significant weight with extreme fragility — a combination that demands both the cushioning depth of large-diameter bubbles and the structural support of reinforced kraft paper to protect against drops and transit shocks.
Customization
We offer full customization on bag dimensions, kraft paper weight, bubble film thickness, and custom printing on the kraft paper outer surface. All sizes are custom manufactured — there are no standard size minimums. For applications requiring maximum cushioning performance, we can advise on the appropriate bubble specification for your product weight and fragility level.
Contact Mavis with your product dimensions, weight, and destination freight type for a specification recommendation and quotation.
Frequently Asked Questions
What is the difference between a thickened kraft bubble bag and a standard kraft bubble bag?
The key difference is the bubble film construction. Standard kraft paper shockproof bubble bags use 70–80 micron bubble film with smaller bubble diameters — appropriate for general fragile products and components up to approximately 2 kg. Thickened kraft bubble bags use 100–150 micron film with 28mm diameter bubbles, providing substantially greater cushioning depth and resistance to bubble collapse under heavier products. If your products have experienced bubble collapse or cushioning failure in standard kraft bubble bags, thickened specification is the correct upgrade.
What is the maximum weight these bags can handle?
Recommended product weight capacity depends on bag dimensions and specific construction. As a general guide, thickened bags are suited for products in the 2–10 kg range where standard bags are insufficient — but maximum weight for a specific application depends on bag width and length. Contact us with your product weight and dimensions and we will advise on the appropriate specification.
Are these bags suitable for ocean freight from Southeast Asia to Europe or North America?
Yes. The thickened construction is specifically suited to the sustained handling and container vibration conditions of long-distance ocean freight — where products are subject to movement over periods of weeks that accelerate bubble collapse in standard packaging. The reinforced 100–120 GSM kraft paper outer layer also provides additional structural protection during extended freight handling.
Are custom sizes and printing available?
Yes. All bag dimensions are custom manufactured to your specifications. Custom printing — including logos, part numbers, and handling instructions — is available on the kraft paper outer surface. Small batch orders are welcome. Contact us with your dimensions, quantity, and printing requirements.
Related Products
Contact Mavis for thickened kraft bubble bag specifications and pricing: mavisv.com/contact
Suitable for distributors and manufacturers across Vietnam, Thailand, Malaysia, Singapore, and Indonesia. Contact us to verify compliance requirements for your specific market.
| Minimum Order | Flexible — contact us with your target quantity for confirmation |
| Sample Order | Available — sample cost refunded on first bulk order |
| Custom Print | Logo, design, and color printing supported (gravure up to 8 colors) |
| Custom Size | Full dimension customization available with no tooling fee (standard construction) |
| Lead Time | Stock sizes: 3–7 days · Custom production: 10–18 working days |
| Packaging | Export carton with inner poly-bag grouping; labeling to buyer spec |
All dimensions are fully customizable. Send your target size and quantity to [email protected] — we'll confirm feasibility and pricing within 24 hours.
Product data sheets and test reports are available upon request. Email [email protected] with your product and application details.
Email [email protected] or WhatsApp +86 186 2610 0216 with your dimensions and quantity. We respond within 24 hours.
