Water-splashing property of fabrics refers to the special treatment of Water-Splashing agent on the surface of fabrics, which can make water droplets form beads, and can wet clothes without penetration and diffusion, thus achieving the function of Water-Splashing like lotus leaf (lotus effect). This principle is used in waterproof processing, in which various chemical materials are attached to the surface of the fabric with a superfine layer of & ldquo; needle bed & rdquo; so that the surface tension of the fabric is less than the cohesion of the water, so the water droplets will roll away rather than spread out and soak. If the needle bed structure is flattened or infiltrated by oil pollution, the anti-splashing ability of the fabric will be greatly reduced, and even begin to absorb water.
waterproof
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Functional treatment to prevent water infiltration, now waterproof treatment often uses waterproof membrane to prevent water molecules from penetrating, but the film itself is too fragile, so it can achieve waterproof function only by the cooperation of surface cloth, film and inner. Waterproof ability is expressed by water pressure value, that is to say, the constant rising water pressure is blocked by a fixed area of waterproof cloth. When the third drop of water seeps out from the surface, the water pressure value of the fabric is usually more than 1000mm, which can achieve the most basic waterproof ability.
dripping wet
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It refers specifically to the functions provided by indirect permeable waterproof film, rather than air permeability, because it is two different mechanisms of air permeability, although it can eventually let sweat pass through the fabric to the outside world. Moisture permeability needs to be absorbed by hydrophilic porous membranes to become sweat molecules inside and move to the outside of the membranes in the way of micro-Brownian motion. Affected by the difference of humidity and pressure inside and outside the garments, the sweat gas is then transformed into gas which is discharged through the surface cloth, so it is called indirect permeability.
Ventilation
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In waterproof permeable membranes, it specifically denounces the functions provided by water porous waterproof membranes. Air permeability is to allow gas to pass directly through the voids of “ water repellent porous membranes ” and so it is called direct permeability because of its faster speed.
Windbreak
As long as the fabric has certain windproof function, the tighter the fabric weaves, the stronger the windproof ability. Its wind-proof ability is generally stronger when the air permeability is not good. High quality fabrics are the perfect combination of air permeability and windproof.
