一种抗粘黏多层沥青及高温高粘产品包装袋
By using a multi-layered composite structure, the problem of poor safety and anti-sticking effect caused by the single structure of existing asphalt packaging bags is solved, achieving higher safety and anti-sticking effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
AI Technical Summary
The existing asphalt packaging bags have a simple structure, resulting in low safety and poor anti-sticking effect, which affects their practicality.
The packaging bag adopts a multi-layer composite structure, including a protective outer layer, an oxygen barrier layer, a high-temperature resistant insulation layer, and an anti-stick inner layer. These layers are composed of materials such as PET, EVOH, PE, TPU/PE composite film, kraft paper, aramid fiber, polyester fiber, polypropylene, aluminum foil, glass fiber needle-punched felt, and polymer release film, providing multi-layer protection and anti-stick effect.
This improves the safety and anti-sticking effect of asphalt packaging bags, enhancing their practicality.
Smart Images

Figure CN224512131U_ABST
Abstract
Claims
1. A multi-layered anti-sticking packaging bag for bitumen and high-temperature high-viscosity products, comprising a bag body (1), characterized in that: The bottom of the main body (1) of the packaging bag is fixedly connected to a load-bearing base plate (2). The main body (1) of the packaging bag includes a protective outer layer (101). An oxygen barrier layer (102) is fixedly connected to one side of the protective outer layer (101). The oxygen barrier layer (102) is composed of PET, EVOH and PE in a sandwich structure. A high-temperature heat-insulating layer (103) is fixedly connected to the side of the oxygen barrier layer (102) away from the protective outer layer (101). An anti-stick inner layer (104) is fixedly connected to the side of the high-temperature heat-insulating layer (103) away from the oxygen barrier layer (102).
2. The anti-sticking multi-layered packaging bag for bitumen and high-temperature high-viscosity products according to claim 1, characterized in that: The protective outer layer (101) includes a wear-resistant outer layer (1011), a moisture-proof layer (1012) is fixedly connected to one side of the wear-resistant outer layer (1011), a high-strength reinforcing layer (1013) is fixedly connected to the side of the moisture-proof layer (1012) away from the wear-resistant outer layer (1011), a braided layer (1014) is fixedly connected to the side of the high-strength reinforcing layer (1013) away from the moisture-proof layer (1012), and the side of the braided layer (1014) away from the high-strength reinforcing layer (1013) is fixedly connected to the side of the oxygen barrier layer (102) away from the high-temperature heat insulation layer (103).
3. The anti-sticking multi-layered asphalt and high-temperature high-viscosity product packaging bag according to claim 2, characterized in that: The wear-resistant outer layer (1011) is made of TPU / PE composite film, the moisture-proof layer (1012) is made of kraft paper, the high-strength reinforcing layer (1013) is made of aramid fiber and polyester fiber composite, and the woven layer (1014) is made of PP material.
4. The anti-sticking multi-layered asphalt and high-temperature high-viscosity product packaging bag according to claim 1, characterized in that: The high-temperature resistant insulation layer (103) includes a first high-temperature resistant layer (1031), one side of the first high-temperature resistant layer (1031) is fixedly connected to the side of the oxygen barrier layer (102) away from the protective outer layer (101), one side of the first high-temperature resistant layer (1031) is fixedly connected to an insulation middle layer (1032), one side of the insulation middle layer (1032) away from the first high-temperature resistant layer (1031) is fixedly connected to a second high-temperature resistant layer (1033), and one side of the second high-temperature resistant layer (1033) away from the insulation middle layer (1032) is fixedly connected to an anti-stick inner layer (104).
5. The anti-sticking multi-layered asphalt and high-temperature high-viscosity product packaging bag according to claim 4, characterized in that: The first high-temperature resistant layer (1031) is made of polypropylene composite film, the heat insulation middle layer (1032) is made of aluminum foil, and the second high-temperature resistant layer (1033) is made of glass fiber needle-punched felt.
6. The anti-sticking multi-layered asphalt and high-temperature high-viscosity product packaging bag according to claim 1, characterized in that: The anti-stick inner layer (104) includes a polymer isolation film layer (1041), and one side of the polymer isolation film layer (1041) is fixedly connected to the side of the high temperature heat insulation layer (103) away from the oxygen barrier layer (102). An organosilicon coating layer (1042) is fixedly connected to the side of the polymer isolation film layer (1041) away from the high temperature heat insulation layer (103), and a hot melt adhesive composite film layer (1043) is fixedly connected to the side of the organosilicon coating layer (1042) away from the polymer isolation film layer (1041).