ロンビック List of Products and Services

At Ronbic Co., Ltd., we conduct measurements of "water vapor permeability and oxygen permeability." In addition to films and sheets used for food packaging materials, samples of product shapes such as beverage bottles like PET bottles and food containers can also be measured in their original form. By using dedicated fixtures, it is possible to measure the gas permeability from the outside to the inside of the container. (The measurement conditions for bottles and food containers are 23°C and 50% RH.) 【Measurement Conditions (Example)】 ■ Water Vapor Permeability Measurement ・Compliant with JISK7129-2 ・Measurement Temperature: 10°C to 40°C ・Measurement Humidity: Dry, 35% to 90% RH *For more details, please download the PDF or feel free to contact us.

We would like to introduce our "Analysis of Food Container Packaging." In addition to measuring oxygen permeability and water vapor permeability in film and sheet forms, measurements can also be conducted in product shapes. Oxygen permeability and water vapor permeability are significantly influenced by the composition and material layers of the container. Our company also conducts analytical evaluations through cross-sectional observation (FE-SEM) and material analysis (FT-IR, Raman). 【Measurement Examples】 ■ Water Vapor Permeability Measurement ■ Oxygen Gas Permeability Measurement *For more details, please download the PDF or feel free to contact us.

Our company offers "Gas Barrier Performance Evaluation." The test cell for mounting the test specimen consists of a humidification section (test gas) and a drying section (carrier gas). Water molecules flowing on the test gas side, where the relative humidity is adjusted, pass through the test specimen and enter the carrier gas side. The concentration of the transmitted water molecules is measured using an infrared sensor based on the absorption intensity of infrared light at a specific wavelength. Please feel free to contact us when you need our services. 【Water Vapor Transmission Test】 ■ JIS K7129-2 compliant PERMATRAN W 3/31 ■ 0.1–1000 (g/m²·24h) ■ Films, sheets ■ 10–40℃ Dry, 35–90% RH *For more details, please refer to the related links or feel free to contact us.

We conduct analysis of seasoning packaging containers. In addition to measuring oxygen permeability and water vapor permeability in film and sheet forms, we can also measure various shapes such as beverage bottles and food containers. Furthermore, while the oxygen permeability and water vapor permeability are significantly influenced by the composition and material structure of the container, we also perform analytical evaluations through cross-sectional observation (FE-SEM) and material analysis (FT-IR, Raman). 【Test Items】 ■ Water Vapor Permeability Measurement - Measurement Result (23°C 50% RH): 0.0054g/(pkg·day) ■ Oxygen Gas Permeability Measurement - Measurement Result (23°C 50% RH): 0.000044cm3/(pkg·day) *For more details, please download the PDF or feel free to contact us.