Mylar Bag Thickness Guide: Mil, Micron and Structure
A practical guide to mylar bag thickness: mil vs micron, typical ranges by use, why barrier comes from the foil layer, and how to brief a supplier.
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Flexible Packaging Blog
Practical guides to pouch formats, materials, printing and sourcing — written from the factory floor at Ruixiong Packaging.
Stand Up Pouch Sizes: Choosing Dimensions by Fill Weight
How to pick stand up pouch sizes by bulk density rather than weight, with approximate dimension ranges for 50 g to 1 kg and tips on headspace and gussets.
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Resealable Pouch Zipper Types: A Buyer's Guide
Press-to-close, slider, inner zipper or tin tie? How each resealable zipper works, how it behaves on kraft and foil laminates, and what to test on samples.
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Retort Pouches: Structure, Sterilization and Testing
How retort pouches differ from ordinary laminated pouches, why the PET/NY/AL/RCPP structure works, and the seal-integrity tests a buyer should ask for.
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Custom Printed Bubble Mailers: Film, Size and Print Guide
A buyer's guide to custom printed bubble mailers: outer film options, bubble spec, interior vs exterior sizing, printing choices and when to pick a PVC bubble bag or EPE foam pouch instead.
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Tea Packaging Bags: Formats, Structures and Buying Guide
A B2B guide to tea packaging bags: what loose-leaf tea and tea bags need, foil vs metallized vs kraft structures, the right format for each tea type, printing choices and sample tests.
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Spout Pouches for Liquids: A Practical Buyer's Guide
Where spout pouches beat bottles and where they do not, plus how to choose the spout, cap, laminate, filling method and tests for liquid products.
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Facial Mask Packaging: Choosing the Right Pouch
Why sheet masks need a high-barrier pouch, and how to choose the structure, sachet or zipper format, finish, export printing and compatibility tests.
Read Article Types of Flexible Packaging Pouches: A Buyer's Guide
Eight pouch formats explained for buyers: what each one is good for, how they compare on cost and shelf display, and which features you can add.
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Flat Bottom Pouch vs Stand Up Pouch: Which to Choose?
Stand-up pouches cost less and suit smaller fills; flat-bottom pouches stand like a box, hold more and offer five printable panels. Here is how to decide.
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Flexible Packaging Materials Explained: PET, PE, AL & More
What each layer in a laminated pouch does, the common structures and their uses, and how to match a structure to moisture, oxygen, light, puncture and retort needs.
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Coffee Bags with Valve: One-Way Degassing Valve Guide
Why roasted coffee needs a one-way degassing valve, how the valve works, and how to choose the bag format, laminate, closure and print for your coffee.
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Pet Food Packaging Bags: How to Choose the Right Pouch
What kibble, treats and freeze-dried food each need from a bag, which formats and laminate structures fit, and how to decide between a window and full foil.
Read Article Aluminum Foil vs Metallized Pouches: What Is the Difference?
Pure foil gives a near-total barrier; metallized film looks similar, costs less and flexes better. Here is how to choose between them.
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Rotogravure Printing for Flexible Packaging: How It Works
Engraved cylinders, one per color: how gravure printing works, what the one-time cylinder cost covers, and how to prepare artwork that prints right.
Read Article Custom Printed Pouches Manufacturer in China: How to Order
What to prepare, how quotes are structured, sampling options, inspection, shipping documents and the questions to ask any pouch supplier.
Read Article Kraft Paper Pouches and Eco-Friendly Packaging: Honest Guide
Kraft pouches are paper laminated to plastic or foil. Here is where they shine, how to print on them, and what can honestly be said about sustainability.
Read Article Protective Packaging for E-Commerce: Mailers, ESD, Foam
When to use bubble mailers, ESD shielding bags, EPE foam pouches and PVC bubble bags, plus sizing, branding and inner-bag combinations.
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