Case Studies
Real needs, real parameters, real feedback — liquid flexible packaging solutions QC Packaging has run together with customers
Liquid Fertilizer: From Drum to Bag — Matching Volume, Gas and Bag Size
A customer producing hundreds of tons per year switched from 20kg drums to BIB bags. We recalculated the bag size based on density and fitted a vented cap — customer feedback: "no swelling, no leakage."
Microbial inoculant + amino acid water-soluble fertilizer (density 1.5, gas-producing)
View Case →NFC Mango Juice Export: 12 Months Without Browning
An export customer using 30,000 x 5L BIB bags + 500 x 220L aseptic bags per month achieved 12 months without browning using our high-barrier film.
NFC mango juice (high VC, highly oxygen-sensitive)
View Case →Birch Sap Full-Chain Traceability: Packaging Starting at Collection
A producer filling 25L + 1T aseptic bags, facing industry-wide traceability requirements — we built the packaging chain starting from the collection end.
Birch sap (collection bags + aseptic bag finished filling)
View Case →Wine OTR Test: Letting Data Drive Bag Selection
A customer was unsure about oxygen permeability of flexible packaging — we measured their current bag's OTR and let the data drive the selection.
Wine (2.5L metallized bag with butterfly valve)
View Case →Tomato Paste 220L Aseptic Bags: High-Acid, High-Viscosity Sauce Solution
Four operating plants in Xinjiang's tomato paste region collectively inquired about 220L aseptic bags - packaging that must handle high acidity, high viscosity and oxygen sensitivity all at once.
Tomato paste / ketchup (high acidity pH ~4.0-4.5, high viscosity 28-38 Brix), 220L aseptic bags
View Case →Sesame Paste & Sesame Oil Aseptic Bags: A Full-Range 2.5L-20L Solution
A condiment producer needed the full packaging range for sesame paste and sesame oil - 2.5L/5L/10L/20L aseptic bags in one package, from bags to equipment.
Sesame paste (high viscosity, high oil content) + sesame oil (oil-based), 2.5L-20L aseptic bags
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