For a meaningful comparison, request one sample for every bag construction or specification you plan to assess. There is no fixed sample quantity in the product information. Before ordering, define the size, base depth, insulation core, closure, print coverage, and colour so that each sample represents a clear set of requirements.
When evaluating a particular feature, keep the other specifications consistent. For example, to compare print quality or handling, use samples with the same dimensions, foam, closure, and colour. If any of those details change, treat the item as a separate specification and request another sample.
The square-bottom design has side gussets and a folded base panel. Available base depths are 10, 12, and 15 cm, and product sizes range from 30 x 35 x 10 cm to 45 x 50 x 15 cm. A moulded handle is sealed into the top band. The standard closure is a flat seal; a slider zip or tear notch can be requested.
This bag combines an aluminium foil laminate exterior with closed-cell EPE foam, available in thicknesses from 2 to 5 mm, and a food-grade PE contact layer. An air-bubble core is also available on request. The exterior can be left as silver foil or printed in custom Pantone colours, with artwork applied to the front, back, and side gussets.
For grocery delivery and cold-chain last-mile operations, consider insulation construction, compartment layout, waterproofing, and ease of handling. Related insulated packaging options include dedicated gel-pack sleeves and waterproof inner membranes. Temperature-sensitive e-commerce shipments can use aluminium foil self-seal, reclosable zipper, bubble-lined, or kraft paper outer formats.
Samples are stated to be ready in 3 to 5 working days. After artwork approval, custom production generally takes 15 to 25 days. Minimum custom order quantities typically range from 5,000 to 10,000 pieces, depending on bag size and structure.
Quality checks are performed on incoming materials, during production, and before shipment under an ISO 9001:2015 quality management system, with AQL sampling for finished goods. Huizhou Ecopack Packaging Products Co., Ltd. also holds FSC Chain of Custody certification. The company reports that a U.S. distributor uses its insulated mailers for cold shipping at an annual volume of 10 million pieces, citing reduced heat transfer and less storage and shipping space compared with rigid foam packaging.
| What to assess | How to organise samples | Available specifications |
|---|---|---|
| Bag construction | Request one sample for each distinct construction | Square bottom, side gussets, and folded base panel |
| Dimensions and base depth | Compare identical dimensions, or count each size as a separate specification | Sizes from 30 x 35 x 10 cm to 45 x 50 x 15 cm; base depths of 10, 12, or 15 cm |
| Insulation core | Keep the core unchanged when testing other features | Closed-cell EPE foam, 2-5 mm; air-bubble core available on request |
| Closure | Use the same closure for a direct comparison | Flat seal; slider zip or tear notch available on request |
| Print and colour | Match coverage and colour across samples when assessing other criteria | Custom Pantone colours, unprinted silver foil, and printing on front, back, and side gussets |
| Lead time | Arrange sampling before approving production artwork | Samples in 3-5 working days; production in 15-25 days after artwork approval |
Order one sample for each size you intend to evaluate. Because dimensions affect capacity and handling, samples in different sizes should not be treated as a like-for-like comparison. The listed range runs from 30 x 35 x 10 cm to 45 x 50 x 15 cm.
Use the same core when your goal is to compare printing, dimensions, or handling. The standard option is 2-5 mm closed-cell EPE foam. An air-bubble core is a different construction and should be sampled separately if you need to assess it.
Sample preparation is stated as 3 to 5 working days. Custom production generally takes 15 to 25 days after artwork approval. Depending on the size and structure, typical custom order minimums are 5,000 to 10,000 pieces.
Plan for one sample per distinct bag construction or specification. Keep dimensions, base depth, insulation, closure, print coverage, and colour aligned wherever you need a direct comparison. Huizhou Ecopack Packaging Products Co., Ltd. is a manufacturer and exporter with in-house R&D, printing, lamination, bag making, and inspection. For technical details or project support, contact manager@ecoppack.com.
Huizhou Ecopack Packaging Products Co., Ltd. is a flexible packaging manufacturer based in Guangdong, China, and was established in 2011. Its products include custom composite pouches and bags such as insulated mailers and thermal packaging, coffee packaging, pet food packaging, spout pouches, kraft and compostable formats, and ESD bags. In-house services cover tooling and structural design, printing, lamination, bag making, and inspection. The company reports production capacity above 500,000 pouches per day and holds ISO 9001:2015 Quality Management System and FSC Chain of Custody certifications.

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