Weed Bag
weed bag makes amazing products if you want a classic smell-proof bag for your dankest nugs. They're made of heavy-duty black plastic and are sold individually or in quantities of 10 or 25 so you'll always have one on hand. They also come in five sizes, perfect for carrying as little or as much as you need. If you want something discreet you can keep in your pocket or backpack, these are a no-brainer.
- Product Introduction
Product Specifications
| Bag type： | Stand-up zipper bag with bottom gusset (can stand upright on its own) | Material thickness： | 0.08–0.16 mm (80–160 microns) per layer; thicker gauges available on request |
| Closure: | Press-to-seal zipper + top heat seal | Color: | Solid black (light blocking ≥98%); custom printing available |
| Temperature range: | –20°C to 80°C | Load capacity: | 1–5 kg per bag, depending on size |
| Tear strength (MD/TD): | ≥30 N/15mm / ≥25 N/15mm | Heat seal strength: | ≥15 N/15mm |
| Water vapor transmission rate: | ≤2 g/(m²·24h) | Oxygen transmission rate: | ≤5 cm³/(m²·24h·0.1MPa) |
| Customization options: | Size, thickness, printing, hang holes, tear notches, one-way degassing valves, and more | ||
| Note: | All specs can be tailored to your specific needs. | ||
Product Features
- Stronger, more durable material
The film is made from an original high-strength polyethylene with the addition of carbon black masterbatch, making it tough and resistant to penetration and tears. It withstands sharp objects and everyday manipulations over 40% better than common plastic bags.
- Multi‑layer odor barrier
Unlike single‑layer bags, our coextruded construction forms a dense barrier that effectively blocks volatile odors-keeping smells contained far more reliably.
- Stable, non‑fading black finish
The black color is blended into the resin using food‑grade carbon black, not surface‑printed. It won't fade, rub off, or peel. The opaque finish fully conceals contents, protecting privacy in public, office, or shared environments.
- UV and light barrier
The opaque black material blocks over 98% of visible light and UV radiation, which prevents deterioration, color fading, and odor loss due to exposure to light-prolonging shelf life.
- Water-and-damp-proof technology
The multi-layer design uses a zipper closure to keep the moisture and liquid out from the bag, reducing the possibilities of the fungi and mold growth.
- Self-Contained Display
The bottom gusset opens up and supports the upright display on the shelves, counters, storage racks when filled. It takes little space while keeping what you keep inside visible.
- Re-use Friendly Zipper
The very well made snap-seal zipper is airtight when closed and easily slidable when unlocked, allowing hundreds of times of sealing and unsealing. Users can just draw out one item and close the bag without wasting what's inside!
- Highly customizable
We offer flexible options-size, thickness, printing, hang holes, degassing valves, child‑resistant locks, and more-to match the specific packaging requirements of different industries and products.
Use Cases
Herbs & spices – preserves aroma and prevents flavor transfer.
Dry foods – nuts, tea, coffee beans, dried meat, dried fruit-keeps them fresh and protected from moisture.
Precision parts – electronic components, hardware, tools-prevents moisture and oxidation.
Outdoor travel – camping, road trips, business travel-contains strong odors so they don't affect other luggage.
Home organization – bathroom or kitchen items with odors-helps keep indoor air fresh.
Retail display – stands out on shelves, with a premium black finish that enhances product presentation.
Industrial samples – chemical samples, lab specimens, odorous materials-safe transport without odor leakage.
Material Construction
| Outer layer | PET polyester | delivers mechanical strength, stiffness, and flatness; resists heat and abrasion; provides excellent print adhesion. |
| Barrier layer | EVOH / nylon coextrusion | the core odor and gas barrier; also boosts puncture resistance. |
| Inner layer | PE (LDPE) heat‑seal layer | food‑contact grade, strong seal integrity, chemically stable, odorless, and safe. |
- Design & plate‑making
Gravure cylinders are made after artwork approval, with color registration checked.
- Raw material procurement & inspection
Virgin resins and functional films are tested for physical properties and safety.
- Printing
High‑speed gravure presses with real‑time registration monitoring.
- Lamination
Dry or solvent‑free lamination bonds multiple layers together.
- Curing
Rolls are held in a temperature‑controlled room for 48–72 hours to fully cure the adhesive.
- Bag making
Fully automatic machines form gussets, seal edges, attach zippers, and cut to size.
- Quality inspection
Visual checks plus lab tests for seal strength, integrity, and barrier performance.
- Packaging & shipping
Approved bags are packed, inventoried, and dispatched per orders.
Our Strengths
Kazuo Beyin Paper and Plastic Packing Co., Ltd – established in 1998 – is a factory integrating design, R&D, and production.
Direct factory pricing
Own production base and fully automated lines eliminate middleman costs, giving you better value, especially on large orders.
Decades of experience
Proven processes for odor‑proof and stand‑up bags, with stable quality and high yield.
Advanced equipment
High‑speed gravure presses, solvent‑free laminators, automatic bag‑making machines-large capacity, short lead times, and the ability to handle urgent orders.
Rigorous quality control
Full‑process inspections from incoming materials to finished goods, with online monitoring and multiple checkpoints.
Safe, virgin materials
Only virgin resins, no recycled content; complies with food‑contact safety standards, odorless and non‑toxic.
Dedicated team
Professional design, sales, production, and after‑sales staff provide end‑to‑end support and fast responses.
Service Guarantee
Pre‑sales
Free consultation and selection advice; sample blank bags available (shipping charge applies); custom design recommendations; clear, detailed quotes with no hidden fees.
In‑process
Timely production scheduling with progress updates; flexible adjustments if needed; on‑time delivery (expediting available for urgent orders); production photos/videos upon request; inspection reports provided before shipment.
After‑sales
Quality issues addressed within 48 hours; if confirmed as manufacturing defects, free replacement or rework; dedicated support for long‑term clients; free guidance on use and care; continuous follow‑up for improvement.
FAQ
Q1: Can Weed Bag really block odors completely? How effective is it?
A: The multi‑layer barrier and zipper seal significantly reduce the escape of most volatile odors when properly closed. Effectiveness depends on the strength of the odor and whether the zipper is fully pressed shut. Make sure to press the zipper all the way to ensure a tight seal.
Q2: Can I customize size and printing? What's the MOQ?
A: Yes, full size and print customization are available. MOQ typically ranges from 5,000 to 10,000 pieces depending on size; printed orders vary by color count and size. Contact our sales team for specifics. We can also discuss smaller quantities when possible.
Q3: How do I choose the right thickness? Is thicker always better?
A: Choose based on item weight, shape, and use. For light items, 0.08–0.10 mm is sufficient; for heavier or sharp‑edged items, consider 0.12–0.16 mm. Thicker isn't always better-the right thickness balances performance and cost. We're happy to recommend the best option for your product.
Q4: Can I get samples first? Is there a charge?
A: Yes, we provide free blank samples-you just pay shipping. For custom‑printed samples, a plate and sampling fee applies, but that cost can be credited toward your first bulk order.
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