PET vs PE vs CPP: Which Material Should You Choose?
Compare PET, PE, and CPP by printability, stiffness, transparency, heat resistance, sealing, and their typical position in flexible packaging laminates.
Packaging Knowledge Center
Clear technical answers for flexible packaging buyers, built from material functions, production workflow, quality testing, and procurement decisions used in real factory work.
Use these guides to prepare an RFQ, compare materials and pouch formats, select a printing route, diagnose leakage, or evaluate a manufacturer before placing an order.
Materials
Pouch Types
Rollstock Film vs Premade Pouches
Compare rollstock film and premade pouches for automated filling, manual packing, trials, production efficiency, flexibility, and freight.
Stand-Up Pouch vs Flat Pouch
Compare stand-up and flat pouches for shelf display, product weight, sample packs, filling, storage, and packaging budget.
Printing
Digital Printing vs Gravure Printing
Compare digital and gravure printing for flexible packaging by order size, setup, speed, design versions, repeatability, and sampling needs.
Problems
Why Do Packaging Bags Leak?
Learn the main causes of flexible packaging leaks: incorrect heat-seal settings, incompatible materials or adhesive, and skipped laminate curing.
Cost & Procurement
What Information Is Needed for a Packaging Quote?
Learn the product, size, quantity, material, printing, and destination details a flexible packaging factory needs to prepare an accurate quote.
How Is Custom Packaging Price Calculated?
Understand the main factors that influence custom flexible packaging prices, including material, quantity, printing, production loss, and logistics.
How to Choose a Flexible Packaging Manufacturer in China
Evaluate a China flexible packaging manufacturer by product knowledge, material recommendations, in-house process control, testing, certifications, samples, and communication.
Industry Guides
Complete Coffee Packaging Guide
Choose coffee packaging by degassing valve, oxygen and moisture barrier, seal strength, zipper quality, and pouch format.
Complete Pet Food Packaging Guide
Choose pet food packaging for oily, heavy products by material strength, moisture barrier, seal and corner durability, and zipper performance.