Membrane (Membrane fabric) — What is it?
Membrane fabric is a new generation material that can provide maximum comfort in the most extreme weather conditions. It is ideal for sewing clothes for hunters and fishermen, as well as equipment for sports and tourism, where convenience, ease and functionality are so necessary. The main feature of this material is a one-sided transfer capability: the membrane let sweat pass through easily, removing excess moisture outside, but it remains practically impregnable for atmospheric moisture, reliably protecting the one who decided to use clothing from membrane fabric.
Membrane fabric have two important features that can make it different from each other: water permeability and vapor permeability.
Water permeability is measured in mm / sq. cm and if the vapor permeability index is 3000, this means that the membrane fabric withstands water column pressure of 3000 mm. on 1 sq. centimeter of fabric. To explain intelligibly, this means that at 3000 mm / sq. cm. the fabric will not get wet in drizzling rain, at 5000 mm. / sq. cm it will withstand the average rain and sleet, at 10000 mm. / sq. cm the fabric withstands heavy rain. Manufacturers usually specify these indicators on trade labels, 5000/5000 or 10000/10000, where the first indicator is water permeability, and the second one is vapor permeability.
Today membrane materials are actively used for manufacturing outerwear, that is used in different conditions and for different activities. Membrane clothing protects the lower layers of clothing from getting wet, removing sweat outside and allowing the skin to breathe.
In addition to waterproof characteristics, there are indicators of "breathing". They depend on the amount of steam passed through the fabric for a certain period of time, for example, per day. The higher indicator of resistance to vapor permeability is, the more evaporation the fabric removes.
Good level of resistance to vapor permeability is not less than 5000 g / sq.m, usual level is 3000 g / sq. m / day.
And how do membranes work in practice?
It is important that you feel comfortable in clothes. When we talk about comfort, we mean microclimate, a thin layer of air between our skin and clothing. We feel comfortable when the temperature of this layer is about 32-34 degrees Celsius, and the relative moisture is 40-60%. Any deviations are felt.
Different factors can affect on the microclimate, for examlpe, weather conditions, clothing characteristics, physical activity.
Cold wind, penetrating through clothing, displaces a layer of warm air around the skin. Clothes made from membrane fabrics are windproof, and this characteristic allows you to stay outdoor in below-freezing temperature for a long time and keep warm.
Our body release moisture during physical activity, put simply, it sweats. If this moisture is not removed in time, it covers the skin with a film and starts to become cool at rest and gets warm during active movements, causing discomfort. The membrane does not allow moisture to stay inside the clothes and removes evaporation to the outside, providing proper microcirculation and supporting the right level of moisture and temperature.
Thus, regardless of the temperature of the environment and the level of physical activity, the membrane allows you to retain the familiar microclimate to the maximum extent possible, namely to retain unchanged the temperature of about 33 degrees Celsius and the moisture of about 50%. Therefore, be it hot or cold, you feel comfortable in the membrane clothing.
It is important to remember that the membrane works for protection against external moisture and for removing the moisture from the body surface. So, the membrane will "work" most effectively during active movement of a man, for example, during fast walk or play sports.
Please, follow the instructions on care of the product made from the membrane fabric, and your favorite clothing from TM Rivla will serve you for a long time!