What are PP woven bags?
PP woven bags (woven polypropylene bags) are industrial packaging bags made from polypropylene tapes that are extruded, stretched for tensile strength, and woven into fabric on circular looms.
Strong for their weight, moisture- and tear-resistant, and economical at scale, woven polypropylene sacks are the world's standard packaging for grain, feed, fertilizer, cement and other bulk goods.
Why choose woven polypropylene
- High tensile strengthStretched PP tapes give a strength-to-weight ratio far beyond paper or film.
- Lightweight & economicalLow material weight cuts shipping cost per bag.
- Moisture & chemical resistantPolypropylene resists damp, oils and most chemicals; add lamination for full protection.
- Tear & abrasion resistantThe woven structure stops punctures from spreading during rough handling.
- UV-stabilized optionsUV treatment for bags stored or used outdoors.
- Reusable & recyclablePP is a mono-material that recycles cleanly and stands up to reuse.
How PP woven bags are made
The five stages that run on our own floor — see them in the film and photos on this page.
- Tape extrusionPP granules are melted and extruded into film, then slit into flat tapes.
- StretchingTapes are stretched to align polymer chains, multiplying tensile strength.
- Circular weavingHigh-speed circular looms weave tapes into seamless tubular fabric.
- LaminationBOPP or PE film is bonded to the woven fabric on our own laminating line — a moisture barrier and a print-ready surface.
- Cutting, stitching & QCFabric is cut, stitched, fitted with gussets or liners, inspected and baled.
Printing is the one step we don't own — deliberately. For four-colour and photo-quality work we buy gravure-printed BOPP film from qualified presses in the Longgang cluster and laminate it on our own line. A colour or registration defect therefore lands on a film roll we inspect and reject, instead of on finished bags you have already paid for. For one- to three-colour industrial sacks, woven cloth goes out for direct flexo. Either way we hold the contract, the QC and the recourse.
Types of PP woven bags we produce
From plain open-mouth sacks to valve and BOPP-laminated bags — each construction matched to your product, fill weight and filling line.
Technical specifications
Typical ranges — every bag is built to order. Send us your product and fill weight for an exact spec sheet.
| Fabric weight (GSM) | 40 – 200 g/m², tuned to load and drop height |
|---|---|
| Weave / mesh density | 8×8 to 14×14 tapes per inch |
| Bag size | Custom width & length to your fill weight and machine |
| Load capacity | 5 kg to 50 kg+ per bag |
| Lamination | BOPP or PE film — gloss or matte, one or both sides |
| Printing | Photo-quality gravure on BOPP film, or 1–3 colour flexo direct on cloth — partner-printed, inspected and laminated by us |
| Closure & finish | Heat-cut, hemmed, sewn or valve top; gussets and PE liners optional |
| UV stabilization | Optional, rated for extended outdoor exposure |
| Material | Virgin or recycled polypropylene — food-grade options available |
What they carry
- Grain & rice
- Flour & sugar
- Animal feed
- Fertilizer & chemicals
- Cement & building materials
- Sand & minerals
Customization options
Tell us your product, weight and filling line — we'll specify the right construction:
- Fabric weight (GSM) & mesh count
- Bag size, gussets & valve tops
- BOPP or PE lamination — gloss / matte
- Multi-color printing — gravure on BOPP or direct flexo
- Inner PE liners
- UV stabilization for outdoor use
PP woven bags — FAQ
What's the difference between woven and non-woven PP bags?
Woven bags are made from interlaced stretched tapes — maximum strength for heavy goods. Non-woven bags are made from bonded PP fibers — softer and lighter, ideal for retail and promotional use. We manufacture both.
Can you print our logo and design?
Yes — multi-color printing is available, and BOPP-laminated bags support photo-quality artwork. Send us your design for a proof.
Do you supply in bulk?
Yes. With integrated production from tape extrusion to bag making plus large warehousing, we supply stable bulk volumes on schedule. Contact us for quotes and lead times.
Are PP woven bags recyclable?
Yes — polypropylene is a single, widely recycled material, and woven bags are strong enough to be reused many times before recycling.
