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SOS Bag (Self Opening Sack) — packaging format from CosunPack
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SOS Bag (Self Opening Sack)

SOS Bag (Self Opening Sack): Retail and promotional carrying packaging sized for your products. Material, handles, branding, and load requirements are confirmed before production.

Product Highlights

  • Self-opening sack—grocery-grade workhorse
  • Handle load-rating tested to your declared weight
  • Food-contact requirements reviewed for the selected material and intended use
  • Weight-rated handles matched to your load requirement
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Craftsmanship & Production

Production steps and quality checks for this packaging format, coordinated across our printing workshops and specialized production network.

Sheets are printed and laminated, then die-cut, folded, and glued with handles attached by hand or machine—handle pull tests run against your declared load rating.

Customization Options

Review the available options for SOS Bag (Self Opening Sack) with our team. These are the requirements to confirm:

  • Material & grammage
  • Size & gusset
  • Handle style
  • Print & lamination
  • Eco material paths

Specification Planning — SOS Bag (Self Opening Sack)

Review these material and process options for the selected structure. Your quotation confirms the exact specification for your project.

MaterialKraft paper (white/brown/black), art paper laminated, non-woven PP
StructureSOS Bag (Self Opening Sack)
Size RangeDimensions or capacity confirmed against your product and selected tooling
ThicknessMaterial thickness or weight confirmed in the approved specification
PrintingOffset, CMYK + Pantone, screen print (non-woven)
FinishingMatte/gloss lamination, foil, spot UV; rope/ribbon handles
MOQQuoted per material, structure, print process, and order quantity
Sampling Lead TimeConfirmed after the artwork, structure, and tooling review
Production Lead TimeConfirmed after sample approval and production planning
Typical ApplicationsRetail carriers, gift bags, events, brand packaging

Options shown for planning; final parameters are agreed in writing with your quotation and approved sample.

Before You Order

SOS Bag (Self Opening Sack) FAQ

Practical answers on choosing the structure, avoiding common problems, and confirming the right specification for your product.

How should an SOS sack be sized for a grocery order?

Provide the largest item footprint, total load and packing sequence. Trial the opened square base with real contents and check whether tall or narrow items make the sack unstable. Choose the usable opening and base dimensions around the order rather than the folded bag size.

Technical references
Can the paper sack carry chilled or damp goods?

Specify condensation and possible leakage before selecting the paper construction. Trial the packed sack under relevant conditions and inspect the base and side seams. Do not assume a grocery format or natural kraft appearance establishes wet strength or direct food-contact suitability.

Technical references
Does an SOS bag include handles?

Confirm the exact construction on the approved drawing; self-opening describes the opening and base format rather than a handle specification. If handles are required, state their type and intended carrying load. Evaluate the completed bag with its actual contents before assigning a carrying claim.

Technical references
What should a packing-station trial check?

Ask operators to open, fill and hand over samples using the normal checkout sequence. Inspect base opening, rim tearing and awkward item placement. Record the approved paper grade and dimensions so a bag that looks similar when flat is not substituted without review.

Technical references

Have a different application? Share your requirements for this model.

One Partner for Your Complete Packaging

Source packaging from China with one team, from product-led development to delivery. Share your product or idea, component list, quantity, and destination—we will help define the next steps.

Project-specific quotationNDA available before file sharingReply target: one business day