Custom sachet packaging

Selecting the correct material is critical for product shelf-life. For moisture-sensitive products like powders, use a PET/AL/PE (Foil) structure to provide a total barrier. For liquid products, ensure the inner layer is Linear Low-Density Polyethylene (LLDPE) for superior seal strength and leak resistance. If you are targeting eco-conscious markets, inquire about Recyclable PE/PE or Compostable PLA laminates, but verify their oxygen barrier properties first.

You must specify the micron thickness (typically 60-120 microns) to ensure durability. Confirm the sealing type (3-side seal, 4-side seal, or back-fin seal) based on your filling machine requirements. Additionally, request high-definition rotogravure or digital printing to ensure brand colors remain consistent, and always specify a tear notch for consumer convenience.

For food, cosmetic, or pharmaceutical use, the supplier must provide FDA-approved or EU Food Grade (EC 1935/2004) certifications. Ensure the inks used are toluene-free and BPA-free. Request a Migration Test Report to prove that chemical substances from the packaging do not leach into the product, especially for liquid or high-fat contents.

Rotogravure printing is most cost-effective for large volumes (over 50,000 units) due to high initial cylinder costs but low unit prices. For startups or small batches, Digital Printing is the better choice as it requires zero plate fees and allows for multiple SKUs in one run, though the per-unit cost is higher.

The primary risks include color deviation and size inaccuracies. To mitigate this, require a physical proof (mock-up) before mass production. Another risk is delamination, where layers peel apart; ensure the supplier uses solvent-less lamination technology and provides a quality guarantee for at least 12 months.

Focus on the Total Landed Cost, not just the unit price. Negotiate for free cylinder sets if the order exceeds a certain volume (e.g., 100,000 units). Use the Diamond Member filter on Made-in-China.com to find audited suppliers with verified production capacities, and always ask for a third-party factory audit report (like SGS or Intertek).

Sachets are lightweight but bulky when finished. For large orders, Sea Freight (FOB) is the most economical. Ensure the supplier uses heavy-duty 5-layer corrugated cartons and plastic pallets with shrink wrap to prevent moisture damage and box crushing during transit. For urgent launches, consider Air Freight for the first 10% of the stock and sea freight for the remainder.

Always conduct transactions through secure payment channels provided by Made-in-China.com. Utilize Escrow services where payment is only released to the supplier after you confirm receipt of goods. Never wire full payments to private bank accounts; stick to Corporate Accounts verified by the platform.