Product overview
A stable flat-bottom bag for milk powder and powdered dairy products, developed around moisture protection, oxygen and light sensitivity, powder filling, shelf presentation and repeated use.
Key packaging features
- Flat base provides upright shelf presentation and a broad print area
- High-barrier laminate options can support moisture, oxygen and light protection
- Zipper and tear-notch options can improve repeated use
- Structure and seals can be evaluated for powder filling and distribution handling
Best suited for
- Whole and skim milk powder
- Dairy nutrition powder
- Powdered dairy beverages and ingredients
Reference specification guide
| Common structure directions | PET/PE, PET/VMPET/PE, PET/AL/PE, or another food-contact high-barrier laminate selected for the formulation and shelf-life target. |
|---|---|
| Reference total thickness | Typically about 100–180 μm as an initial reference; pack weight, drop performance, gusset design, zipper and barrier target determine the final construction. |
| Size and capacity | Custom; confirmed from fill volume or net weight, product density, headspace and sealing area. |
| Food-contact requirement | Materials and compliance documents must be confirmed for the destination market and actual dairy application. |
Material structures and thicknesses above are common reference directions, not a final specification. The final construction must be confirmed from the product, filling process, storage conditions, shelf-life target and validation requirements.
Customization options
- Flat-bottom dimensions and target net weight
- Zipper, tear notch and optional one-way features where applicable
- Aluminum foil or metallized barrier directions
- Gloss, matte or selected tactile finishes
- Custom artwork and high-coverage printing
Printing options
Flexographic printing
Suitable for selected film and paper structures. It can be economical for repeat production where artwork complexity and color requirements suit the process.
Rotogravure printing
Often considered for detailed graphics and consistent color across medium-to-long production runs. Cylinder cost and order volume should be evaluated.
Digital printing
Useful for prototypes, market testing and shorter quantities. Available materials, dimensions, finishes and color limitations must be checked before quotation.
Terminology note: the industry term for “雕刻印刷” in this application is generally rotogravure printing or gravure printing.
Information needed for quotation
- Exact dairy product and ingredients where relevant
- Target net weight or fill volume
- Filling temperature, sealing method and equipment
- Storage temperature, distribution conditions and target shelf life
- Estimated quantity, artwork and destination market
Frequently asked questions
What barrier is important for milk powder?
Moisture, oxygen and light sensitivity should be reviewed with the formulation, target shelf life and distribution environment.
Can a zipper be added?
A resealable zipper may be suitable depending on pack size, powder handling and consumer-use requirements.
How is the correct bag size determined?
Target net weight, powder density, filling method, headspace and seal area are used to establish practical dimensions.
Confirm the right specification before production
Share the information you already have. We will identify which structure, thickness, print process and testing details still need to be confirmed.
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