Independent packaging sourcing
paper valve bags
Paper Valve Bags Sourcing is an independent sourcing partner. We help US buyers write one valve type, ply stack, quantity unit and destination so factory wholesale quotes can be compared. We do not sell from inventory and we do not publish a discount percentage without the same specification evidence. The measured product form that starts this brief is paper valve bags; finer cluster members sit on later pages instead of being copied into this H1.
Request Factory Quotes
What belongs on the first brief
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Valve before price
Name an internal pasted valve or an external valve, plus valve width for the filler spout. A piece price without valve geometry cannot be compared across factories.
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Paper as a bound ply stack
Write kraft grade and basis weight in gsm or lb with ply count. Virgin kraft, bleached kraft and recycled kraft are different quote objects when they sit on different plies.
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Moisture ply as a separate object
A PE inner ply or PE-coated ply changes water vapor transmission rate and recyclability reporting. Treat it as its own line, not a free upgrade on uncoated kraft.
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Quantity unit in ISO packaging vocabulary
ISO ICS 55.020 packaging vocabulary treats piece, carton and roll as different units. Mixing them in one cell hides the real order size.
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Documents bound to the material lot
Food-contact or post-consumer recycled content claims need the paper and ink files for that lot. They are not a site-wide badge.
Where buyers usually start
These image cards name fill and pack-out settings. They are not a factory list and they are not ranked by search volume.
Dry mortar
Industrial powder
Food powder
Compare factory quotes
Include valve type, ply stack, quantity and destination. No published discount percentage without the same specification evidence.