April 28, 2020

Light transmittance tester test aluminum plating film

Vacuum aluminum plating film is a green material that is widely used in the packaging industry. Due to the vacuum aluminum plating method, only one surface is covered on the cardboard surface.

The 0.25-0.3 micron (μm) thin, compact and bright aluminum layer is only one fifth of the aluminum foil layer of the composite cardboard.

Due to the different main performances of the vacuum coating products, the process requirements in the vacuum coating production process are also inconsistent. Optical thin films (similar to vacuum aluminum films, vacuum solar coating, etc.) vacuum coating products have optical performance requirements.

The Linshang light transmittance tester LS117 on the forest can be directly used to test the optical density value of the aluminum coating. That is to say, the aluminum coating can detect the coating quality of the vacuum aluminum coating equipment through the optical transmittance value.

Aluminum coating film transmittance test-transmittance tester


Detection method of light transmittance of aluminized film:

1. Short press the "Start" button to enter the test interface

2. When there is no sample, the light source probe and the receiving probe are tight, when the T (transmittance) on the interface is displayed as 100.00%, start the measurement

3. Pull up the receiving probe, put it in the aluminum coating, and then close it tightly. The current T value is the light transmittance value of the tested sample, and the OD value is the optical density value of the tested sample.


The LS117 light transmittance tester is an instrument made using the principle of diffuse transmission and has an integrating sphere effect. It is suitable for detecting the light transmittance of various diffuse transmission materials such as milky white, foggy, frosted matte, etc .; the optical density of X-ray film, film and other materials.