Inflatable toy is a large toy category. Its heat seal quality determines the toy performance and safety directly.

This article deals with the importance, influencing factors and testing method of contact lens oxygen permeability.

Heat Seal is a technology, method and process of uniting plastic packaging material in certain forms to form an airtight seal by applying heat to fuse the edges of the material together under certain time, temperature and pressure.

WVTR is the abbreviation for water vapor transmission rate, which is defined as the constant rate at which water vapor permeates through a specimen film at specified conditions of temperature and relative humidity.

Labthink PERME DM2/330 is the first double method gas permeability testing instrument in the world that can realize equal pressure method and differential pressure method in one tester.

This article introduces four methods to improve barrier property of PET bottle and PET bottle preform, as well as introduces relevant innovative testing instruments.