moisture vapor transmission rate


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moisture vapor transmission rate

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MVTR

The rate at which a barrier permits moisture to penetrate or escape. In pharmaceutical packaging the moisture vapor transmission rate is one element that determines the shelf life and expiration of a medication.
References in periodicals archive ?
When cucumbers are packed and stored or transport correctly in Prolong(r) Vapour Control packaging, characterized by high moisture vapor transmission rates, storability can be extended to up to 3 weeks.
They have a moisture vapor transmission rate 400-800 g of moisture vapor per square meter of product per day.
In combination with highly breathable facestocks, vastly improved moisture vapor transmission rate (MVTR) can be accomplished using Avery Dennison (AD2000 adhesive), a proprietary patent pending formulation.
Key parameters include the nature of the food product, the volume of space (consumer-size or foodservice package or bulk bin) being protected, volume of product, initial humidity, moisture content in the product post packaging, moisture vapor transmission rate, and anticipated storage time.
The adhesive is pattern coated onto the urethane film, resulting in increased breathability and a high moisture vapor transmission rate.