Valve bag range
Four material systems.
One valve-bag partner.
PE, PP woven, paper-plastic and multi-layer paper. The right choice depends on what you pack, how you fill it and how the pallet travels — not on a single “best” material.
The range
Start with the product. Then choose the structure.
Every bag below can be made in custom dimensions, with a valve matched to your filling spout and print matched to your market. The differences are in the material performance.
01
Moisture barrier
Polyethylene film
PE Valve Bags
Moisture-proof film bags with a self-closing valve.
- LDPE / HDPE / LLDPE
- 60–180 μm
- 15–50 kg
02
High strength
Polypropylene woven fabric
PP Woven Valve Bags
High-strength woven bags for granular products.
- 70–120 g/m²
- Laminated or breathable
- 15–50 kg
03
Balanced performance
Kraft paper + plastic
Paper-Plastic Composite Valve Bags
The stiffness of paper, the toughness of plastic.
- Kraft + PE / PP
- 15–50 kg
- Print-ready surface
04
Premium print & strength
2–5 ply kraft paper
Multi-Layer Paper Valve Bags
2–5 ply kraft sacks for cement, mortar and powders.
- 2–5 plies
- 70–90 g/m² per ply
- 15–50 kg
Material comparison
What each structure does well — and where it gives something up.
Use this as a starting point, not a final specification. Fill weight, product density, filling speed, storage conditions and print all move the recommendation.
| Feature | PE | PP woven | Paper-plastic | Multiwall paper |
|---|---|---|---|---|
| Moisture barrier | Excellent | Good when laminated | Good | Moderate; coating improves |
| Tensile & tear strength | Good | Excellent | Very good | Good |
| Stack strength | Good with block bottom | Good | Very good | Excellent |
| Print surface | Good | Excellent with BOPP | Very good | Excellent, matte |
| Recyclability | Mono-material PE streams | PP recycling streams | Mixed layers | Paper streams; barrier affects |
| Relative cost | Mid | Low–mid | Mid | Mid–high |
| Best for | Resins, chemicals, food powders | Fertilizer, grain, feed, minerals | Cement, chemicals, flour | Cement, mortar, flour, sugar |
Need a structure that is not listed? We also quote custom laminates, barrier films and PE-free paper builds. Send the product data sheet and we will review it.
How to choose
Three questions narrow the range quickly.
Before price, answer these three. They determine whether the bag protects the product, fits the filling line and survives the journey.
- 01Is the product moisture-sensitive?
If yes, start with PE or a coated/lined paper structure. If the product needs to breathe, an uncoated woven or paper bag may be better.
- 02How heavy and how sharp is the load?
Heavy mineral or fertilizer loads usually point to PP woven. Fine abrasive powders need puncture-resistant film or a strong paper build.
- 03What does the market expect to see?
Cement and retail flour often need a premium paper surface. Industrial resin buyers care more about barrier and clean filling than a kraft finish.
Common questions
Before you choose a material.
Still deciding? These are the questions that usually settle the structure. For anything product-specific, send the details.
Ask us directlyWhich material should I choose: PE, PP, paper-plastic or paper?
Can you make custom sizes, valves and print?
What is your minimum order quantity?
Not sure which bag fits?
Send the product. We will narrow the range.
Tell us what goes in the bag, how much it weighs and how it is filled. We will recommend a structure and a sample plan — before you commit to production.