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Kraft Paper Bubble Flat Bag
The Kraft Paper Bubble Flat Bag is a flat three-side-sealed protective packaging pouch combining a kraft paper outer layer with an inner PE bubble film cushioning layer — designed for manufacturers, distributors, and e-commerce businesses across Southeast Asia who need lightweight, efficient protection for flat or thin items. Unlike gusseted or stand-up bags, the flat format eliminates wasted volume, reduces packaging material per unit, and allows fast loading on production lines. Supplied from our factory to electronics, document handling, and industrial operations across Vietnam, Thailand, Malaysia, Singapore, and Indonesia.
Structure & Materials
The flat three-side-sealed construction means three sides are factory-sealed at manufacture, with one open end for product loading. After loading, the open end can be heat-sealed using a standard impulse heat sealer for secure containment, or folded and taped for lighter applications.
Specifications
| Outer Layer | Kraft paper, 70–100 GSM |
| Inner Layer | Polyethylene (PE) bubble film |
| Bubble Specification | Standard 10 mm diameter / Large 28 mm diameter |
| Sealed Sides | 3 factory-sealed sides, 1 open end |
| Closure Options | Open end (standard); heat-sealable inner surface available |
| Bag Format | Flat (no gusset) |
| Custom Sizes | Yes — all dimensions manufactured to specification |
| MOQ | Small batch orders welcome — contact us for volume |
⚠️ Note: Bubble specification (10 mm standard vs 28 mm large) affects cushioning depth and per-unit cost. Please confirm your preferred bubble size when inquiring if impact protection level matters for your application.
Applications
PCB and Flat Electronic Components
Printed circuit boards, display panels, keyboard assemblies, and flat sensor modules fit naturally into the flat bag format — eliminating wasted volume and reducing packaging time versus over-sized bags. The kraft paper outer layer adds tear resistance where PCB edges might otherwise pierce standard plastic packaging.
Documents and Printed Materials
Technical documents, engineering drawings, printed materials, and artwork are protected from moisture and transit damage while maintaining a professional presentation appearance. The natural kraft surface communicates an eco-friendly brand credential to recipients.
Flat Industrial Components
Sheet metal parts, gaskets, flat optical components, and thin precision parts benefit from the combination of kraft paper structural rigidity and bubble cushioning in a flat format that matches their geometry — avoiding the over-packaging and wasted volume of gusseted alternatives.
E-commerce Flat Product Shipping
Books, vinyl records, flat artwork, and consumer flat goods ship efficiently in kraft bubble flat bags — adequate protection at minimum packaging weight and volume, with an eco-friendly appearance that matters to end consumers.
Customization
Contact Mavis with your dimensions, quantity, and bubble specification requirements for a rapid quote: mavisv.com/contact
Frequently Asked Questions
What is the difference between a kraft paper bubble flat bag and a kraft paper shockproof bubble bag?
A flat bubble bag uses standard-thickness bubble film and is suited for lighter flat items requiring basic cushioning and tear resistance — PCBs, documents, sheet components. A kraft paper shockproof bubble bag uses a thicker bubble film with larger bubble diameter, designed for heavier or highly fragile items where greater impact energy absorption is required. If your item is a light flat component, the flat bag is the more efficient and cost-effective choice.
What is the maximum PCB size this bag can accommodate?
There is no fixed maximum — flat bags are custom manufactured to any dimension you specify. Provide your PCB length, width, and preferred clearance, and we manufacture the bag to match. For very large panels or boards, contact us with dimensions for a quote.
Can the open end be heat-sealed after loading?
Yes. The inner PE bubble film layer is heat-sealable. Specify the heat-sealable open end option when ordering, and the bag can be closed using a standard impulse heat sealer on your production line after loading.
Are gusseted versions available for stacked or thicker items?
Yes. If your components require extra depth — for example, stacked PCBs or multiple flat items in one bag — gusseted versions with side panels are available. Contact us with your stacked dimension requirements and we will quote accordingly.
Are kraft paper bubble flat bags recyclable?
Yes. The kraft paper outer layer is recyclable with paper waste streams and biodegradable under industrial composting conditions. The PE bubble film inner layer is recyclable as clean PE plastic. This combination provides better environmental credentials than pure plastic bubble packaging — relevant for buyers with sustainability requirements across ASEAN markets.
Related Products
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.
