MVTR

MVTR

Moisture vapor transmission rate (MVTR) is the rate at which water vapor passes through a given substance, such as a coverall fabric, adhesive, or film. It is an important factor in selecting materials for applications where moisture control is critical. MVTR is measured by weighing a dish containing the substance over a specific time period and calculating the amount of moisture transmitted through the specimen.From: Pharmaceutical Packaging Handbook [2019], Development of indigenous personal protective equipment coverall by CSIR-NAL [2020], Technology of Pressure-Sensitive Adhesives and Products [2008], Fibres to Smart Textiles [2019]

Testing of Fibres, Yarns and Fabrics and Their Recent Developments

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Published in Asis Patnaik, Sweta Patnaik, Fibres to Smart Textiles, 2019

Anindya Ghosh, Prithwiraj Mal

The moisture vapour transmission rate (MVTR) is the measurement of passage of water vapour through textiles (Slater 1999; Saville 1999). A higher MVTR of a fabric ensures better comfort in hot and humid climatic condition. MVTR of a fabric can be measured using cup method. In this method, the fabric specimen is sealed over the open mouth of a dish containing water (Figure 12.26). The water in the dish is placed under standard atmospheric condition. After specific time, successive weighings of the dish are made, and the MVTR through the specimen is calculated.

Certification and Characterization of Photovoltaic Packaging

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Published in Michelle Poliskie, Solar Module Packaging, 2016

Michelle Poliskie

Water vapor transmission rate (WVTR) is synonymous with moisture vapor transmission rate (MVTR). WVTR is a material property that describes the transmission rate of moisture through a polymeric substrate at a controlled external temperature and humidity. This property is a vital packaging consideration when a hermetic seal is required to ensure product performance.

Development of indigenous personal protective equipment coverall by CSIR-NAL

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Journal Information

Published in Indian Chemical Engineer, 2020

Hemant Kumar Shukla, Harish Barshilia, Sheeja Sunil, P. Porkodi, Prosenjit Ghosh, M. S. Kamaleshaiah, Jitendra J. Jadhav

An important factor in selecting the coverall fabric is the moisture vapour transmission rate(MVTR) which is the rate at which water vapour transfers through a given substance. Protective clothing with apropriate MVTR is required to impart comfort along with safety.

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