The advantage of medicinal aluminum-plastic sheets is that each pill on the sheet is individually packaged, which facilitates storage, prevents cross-contamination between medications, and offers better moisture resistance. Properties such as corrosion resistance, impact resistance, fire resistance, thermal insulation, and shock resistance, along with being lightweight and easy to process, give medicinal aluminum-plastic sheets broad application prospects.

Below, Shandong Puchuang will mainly introduce the testing instruments for the sealing performance of medicinal aluminum-plastic sheets and the testing methods, making it easier for everyone to understand:

Introduction to Medicinal Aluminum-Plastic Sheet Sealing Testing Instruments 

Shandong Puchuang has developed and produced the Aluminum-Plastic Sheet Sealing Tester LT-02P. This testing instrument creates an internal and external pressure difference in samples immersed in water within a vacuum chamber, allowing observation of gas leakage to determine the sample's sealing performance. Alternatively, by evacuating the vacuum chamber to create a pressure difference, it observes sample expansion, shape recovery after vacuum release, and liquid penetration to assess sealing performance. It is also known as the aluminum-plastic sheet sealing tester, aluminum-plastic sheet sealing detector, and aluminum-plastic sheet leak detector.

Aluminum-Plastic Sheet Sealing Tester LT-02P Main Parameters

Vacuum Range: 0 to -90 Kpa
Response Speed: 5 ms
Resolution: 0.001 Kpa
Built-in Modes: Single-point mode, Incremental mode, Decay mode
Display: 65 million-color TFT screen
Pressure Adjustment Range: 0.2-0.7 Mpa
Interface Size: Φ6
Holding Time: 0-999999 s
Vacuum Chamber: Φ270 mm x 210 mm (H) (Other sizes can be customized)
Device Dimensions: 420 (L) x 300 (B) x 165 (H) mm
Air Source: Compressed air (provided by the user)

Method for Testing Aluminum-Plastic Sheet Sealing Performance with the Aluminum-Plastic Sheet Sealing Tester 

(1) Randomly select 10 aluminum-plastic sheets during the aluminum-plastic process and place them in a conical flask with a side arm. Add a prepared 10% carmine solution (take 80g of carmine and add purified water to make 800ml). Evacuate for 10 minutes, maintaining a vacuum of -0.07 MPa; 

(2) Observe the leakage of the samples during evacuation and while maintaining vacuum; 

(3) If no continuous bubbles are produced during evacuation and vacuum maintenance, and no carmine solution penetrates the pills upon opening and inspection, the sealing is considered tight with no air leakage. 

The pharmaceutical aluminum-plastic sheet sealing tester is suitable for sealing tests of packaging bags, bottles, tubes, cans, boxes, etc., in industries such as food, pharmaceuticals, medical devices, daily chemicals, automotive, electronic components, and stationery. It can also test the sealing performance of samples after drop and pressure resistance tests.