Recommended Material Structures for Powder Spout Pouches

✅ Option 1: PET / AL / PE (High Barrier, Most Popular)

• PET: Durable outer layer, great printability
• AL (Aluminum foil): Excellent moisture, oxygen, and light barrier
• PE: Inner sealant, food-safe and flexible

✔️ Ideal for:

• Protein powders
• Collagen powders
• Baby formula
• Spices and fine powders

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✅ Option 2: PET / MPET / PE (Medium Barrier, Lower Cost)

• MPET (Metallized PET): Reflective layer for good light & oxygen protection
• A cost-effective alternative to full aluminum foil

✔️ Ideal for:

• Tea powder
• Instant drink mixes
• Industrial powders (non-sensitive)

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✅ Option 3: PET / NY / PE (Puncture-Resistant for Heavier Fill)

• Adds Nylon (NY) for extra toughness — helps prevent ruptures from denser or abrasive powders (e.g., detergent or cleaning powders)

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✅ Option 4: PET / PE-EVOH / PE (Transparent High Barrier)

• Maintains visibility of product while still offering moderate barrier with EVOH
• For powders that need to be seen (e.g., premium superfood blends)

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Special Considerations for Powder Spout Bags:

• Anti-static treatment: Prevents fine powder from clinging to the pouch interior or spout
• Spout Size:
  • 16mm–22mm: Ideal for free-flow powders
  • Custom wide-mouth spouts: For protein powders or formulas
• Thickness: 120–160 microns depending on product weight
• Sealing: Heat sealing with ultrasonic spout welding to prevent leakage of fine particles
• Cap Options:
  • Screw cap with tamper-evident ring
  • Hinged lid for scoop-free dispensing

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Eco Option for Powder Refill Packaging

• Mono-material PE pouch + HDPE spout — recyclable & refill-friendly
• Works great for personal care powders, food powders, or bulk household items

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Let me know:

• What kind of powder you’re packing (food, supplement, chemical, etc.)
• Grain size (fine like flour, coarse like salt)
• Fill weight (g, kg)
• Storage conditions (shelf-stable, humid environment, etc.)
• Any sustainability goals

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