If you've ever held a sack of rice, fertilizer, or feed, you almost certainly held PP woven. This material is the backbone of industrial packaging in Indonesia for a simple reason: it's strong, light, water-resistant, and cheap. This page is about the PP woven material itself, not a specific commodity, so you understand what you're buying before you choose. For full production see custom sack printing.
What PP Woven Is
PP woven stands for woven polypropylene. Polypropylene resin is melted, drawn into thin strands called tape yarn, then cross-woven like cloth. The result is a sheet that's strong in every direction, hard to tear, and still light. That sheet is then cut and stitched into a sack.
This woven structure is what lets PP woven hold heavy loads without tearing, unlike ordinary sheet plastic that splits easily. Load pull spreads across the whole weave instead of concentrating at one point. That's why a 50 kg sack thrown and stacked in a warehouse stays intact.
Gramage Sets Strength and Price
Gramage, measured in grams per square meter (gsm), is the most important number when choosing PP woven. Higher gramage means a thicker weave, a stronger sack, and a higher price.
- 60-70 gsm. For light and retail packaging, 5 kg rice, or products not stacked high. The most economical.
- 80-90 gsm. General needs for 25 kg sacks like wholesale rice and retail fertilizer. A balance of strength and price.
- 100-110 gsm. For heavy 50 kg loads stacked high in a warehouse, like industrial fertilizer and animal feed.
Plenty of people pay for thicker gramage than they actually need because it feels safer. We help match the gramage to your load and handling instead, so no money gets spent on thickness that goes unused.
Water-Resistant, To a Point
The PP woven weave holds off splashes and light rain during loading and unloading, but it stays porous so water vapor can pass. For most dry products like rice, granular fertilizer, and grain, that protection is enough.
If your product needs full waterproofing or tight moisture protection, there are two add-ons. Outer BOPP lamination makes the surface fully sealed while also serving as a full-color print medium. An inner LDPE liner holds back moisture and stops fine particles from escaping through the pores. Which one you use depends on whether you need a premium look or just a moisture barrier.
Printing on PP Woven
For plain PP woven, we screen print 1-4 color logos and text, or use flexography for large volumes with repeated motifs and limited colors. For full-color photo-realistic artwork, the PP woven sheet gets coated with a BOPP film printed by rotogravure first. The ink we use for plain PP woven is chosen to bond firmly to the non-absorbent woven surface, so the print doesn't peel when sacks rub in a stack.
Pricing Logic
PP woven is the most economical sack material, and the per-piece price drops with quantity and depends on the gramage you choose. 1-2 color printing is cheapest from 1,000 pieces and up. We send final pricing within a day of receiving complete material, size, and color-count specs.
PP woven is the base for nearly every commodity. See its use for animal feed sacks that need heavy gramage, or compare it with heavy-duty woven bags for very large loads. If you need a full-color premium look, see the lamination option.
See PP Specs
Want to know which PP woven spec fits your product? Reach our team for a free consultation. Tell us the product weight per sack, how it's stored, and whether you need full waterproofing, so we can recommend the right gramage and structure without you paying for excess material.