The commonly used hard plastic sheets for pharmaceutical blister packaging are mainly polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) and some composite materials. At present, the largest application is polyvinyl chloride hard sheet. Rigid polyvinyl chloride sheets have good transparency and gloss. Polyvinyl chloride sheets used for pharmaceutical packaging have high requirements for resin hygiene, and non-toxic polyvinyl chloride resin, non-toxic modifier and non-toxic heat stabilizer must be used.
Composite plastic hard sheets for pharmaceutical blister packaging include PVC/PVDC/PE, VDC/OPP/PE, PVC/PE, etc. For pharmaceutical packaging that requires barrier properties and light protection, materials composited with plastic sheets and aluminum foil can be used, such as PET/aluminum foil/PP, PET/aluminum foil/PE composite materials. It is mainly used to package pharmaceutical tablets, capsules, pills and other products. In addition, it can also be used for blister packaging of food, health products, candy and other products.
High barrier blister packaging material ---- Water vapor transmission rate
| Product name | National standard water vapor transmission rate (g/㎡·24h) | MC laboratory data (g/㎡·24h) | Test basis |
| PVC/PVDC 40GSM | ≤0.8 | 0.7 | YBB00202005-2015 |
| PVC/PVDC 60GSM | ≤0.6 | 0.3 | YBB00202005-2015 |
| PVC/PVDC 90GSM | ≤0.4 | 0.2 | YBB00202005-2015 |
| Cold stamped aluminum | ≤0.5 | 0.23 | YBB20272012-2015 |
High barrier blister packaging materials --- oxygen transmission rate
| Product name | National standard water vapor transmission rate (g/㎡·24h) | MC laboratory data (g/㎡·24h) | Test basis |
| PVC/PVDC 40GSM | ≤3.0 | 1.01 | YBB00202005-2015 |
| PVC/PVDC 60GSM | ≤3.0 | 0.3 | YBB00202005-2015 |
| PVC/PVDC 90GSM | ≤3.0 | 0.3 | YBB00202005-2015 |
| Cold stamped aluminum | ≤0.5 | 0.25 | YBB20272012-2015 |
Blister packaging performance characteristics
1. High barrier property: It can effectively prevent the penetration of gases such as oxygen and water vapor, and protect the product from damage such as oxidation and moisture.
2. Chemical resistance: It has good corrosion resistance to a variety of chemicals, ensuring that the packaging remains stable in a variety of environments.
3. Aesthetics: It can be printed, toned and processed as needed to improve the visual effect and attractiveness of the packaging.
4. High flexibility: Different material combinations can be selected according to product characteristics to meet different protection needs
5. Strong protection: Prevent the contents from moisture, deterioration, oxidation or contamination.
6. Easy to open: Reasonable design, easy to open and single use.
7. Easy to process: It has good processing properties, such as molding, cutting, etc., which is easy to produce and use.
Application areas:
1. Pharmaceutical industry: Blister packaging for drugs, protects drugs from the external environment, and ensures the quality and safety of drugs.
2. Food industry: Used for packaging of meat products, dairy products, beverages and other foods to extend the shelf life and freshness of foods.
3. Other industries: such as cosmetics, electronic products, etc., also often use high barrier blister packaging materials to protect products from the external environment.