奶粉重包运输包装袋
By introducing a multi-layered structure of bubble wrap and aluminum foil layers into the milk powder transport packaging bag, the problem of milk powder deterioration in high-temperature environments is solved, achieving good heat insulation performance and ensuring the quality of milk powder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TINGZHENG PRINT & PACKING MATERIAL CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing milk powder packaging bags lack heat insulation properties when transported in high-temperature environments, which accelerates the spoilage of the milk powder.
Design a milk powder transport packaging bag comprising a bubble wrap layer and an aluminum foil layer, forming a multi-layer structure to improve heat insulation performance and reduce heat exchange intensity.
It effectively reduces the impact of high ambient temperatures on milk powder, slows down the rate of milk powder deterioration, and ensures the quality of milk powder during transportation.
Smart Images

Figure CN224511933U_ABST
Abstract
Claims
1. A repackaging bag for milk powder, comprising bag sheets bonded together to form a bag body, the bag body having a top and a bottom, the bottom being open and the top being closed, the top being sheet-like, and having a handle hole provided at the top, characterized in that... The bag sheet includes a first PE film layer, a bubble wrap layer, a second PE film layer, an aluminum foil layer, a third PE film layer, a woven fabric layer, and a fourth PE film layer. The first PE film layer is located on the innermost side of the bag body, the fourth PE film layer is located on the outermost side of the bag body, the bubble wrap layer is located between the first PE film layer and the second PE film layer, the aluminum foil layer is located between the second PE film layer and the third PE film layer, and the woven fabric layer is located between the third PE film layer and the fourth PE film layer.
2. The milk powder heavy package transport packaging bag according to claim 1, characterized in that, The handle hole is oval-shaped, and a plastic ring is provided at the handle hole, which is distributed around the hole wall.
3. The milk powder heavy package transport packaging bag according to claim 1, characterized in that, The bag has an easy-tear notch, which is triangular in shape and located between the top and bottom of the bag.
4. The milk powder heavy package transport packaging bag according to claim 1, characterized in that, The thicknesses of the first PE film layer, the second PE film layer, the third PE film layer, and the fourth PE film layer are equal, and the thickness of the first PE film layer is 15 micrometers to 20 micrometers.
5. The milk powder heavy package transport packaging bag according to claim 4, characterized in that, The thickness of the bubble film layer is 0.4 cm to 0.5 cm.
6. The milk powder heavy package transport packaging bag according to claim 4, characterized in that, The thickness of the aluminum foil layer is 10 micrometers to 15 micrometers.
7. The milk powder heavy package transport packaging bag according to claim 4, characterized in that, The thickness of the woven fabric layer is 0.1 cm to 0.2 cm.
8. The milk powder heavy package transport packaging bag according to claim 1, characterized in that, It also includes two rigid plastic sheets, which are respectively disposed on the inner walls of both sides of the bag body and are triangular in shape, located near the top of the bag.