Quick-drying fabric

The origin of quick drying:

The so-called QUICK drying is actually translated from English quick-dry or dry-easy and similar words, and quick drying refers to the fabric of the clothing compared with wool or cotton clothing, under the same external conditions, it is easier to volatilize water and DRY faster.

Quick drying performance:

Some people think that quick-drying clothes are very mysterious, thinking that there are a lot of high-tech components, in fact, most of the quick-drying clothes are made of chemical fiber fabrics, but because of the difference in processing technology, so that it has a variety of magical effects that ordinary clothes do not have. The water absorption is not high, the air permeability is good (depending on the material) has a certain waterproof, after being wet under the action of body temperature or wind, the drying speed is relatively fast compared to ordinary clothes.

Principle of quick drying:

For waterproof and breathable quick-drying clothes, from a technical point of view, the main principles are as follows:

1. Use the difference between the minimum diameter of a water drop and the diameter of a water or air molecule. We all know that even the smallest drop of water must be much larger than the diameter of water or air molecules. Then, if the aperture between the warp and weft of the fabric is controlled between the minimum diameter of the water drop and the maximum diameter of the water molecule or the air molecule, it can be realized that the water drop cannot enter, and the water molecule and the air molecule can be unimpeded.

The fabric made by this method is usually called ultra-fine high-density fabric or ultra-high-density fabric. This kind of fabric appeared a long time ago, in the previous shopping malls, there was a very ordinary looking fabric with a pocket of water, but the water could not penetrate into the fabric, that is, a high-density fabric. This fabric, its advantages are light and durable, good moisture permeability and soft, the disadvantage is that after a period of use, the waterproof performance will be greatly reduced, and because its spinning must be special treatment, high manufacturing costs, has now faded from the market.

2. Use microporous film. The micropore diameter of the film is between the minimum diameter of the water drop and the maximum diameter of water or air molecules, and then the film is combined with the outer fabric, so as to give the fabric waterproof and breathable function. For fabrics made in this way, we need to highlight. The key to the cloth made by this method is the film with micropores, the production of micropores in the film may have a variety of ways, you can produce micropores through the bidirectional stretching of the film, you can also fill the polymer to form pores between the polymer and the filler, you can also use laser technology to create pores in the non-porous film.

3. The effect of waterproof and breathable is achieved by the interaction of hydrophilic factors and hydrophobic factors of different components in the inner and outer layers of the fabric. Due to hydrogen bonding and other intermolecular forces, water molecules adsorb water molecules on the high humidity side and transfer to the low humidity side through the process of desorption, so as to achieve the purpose of air permeability.

4. Using the characteristics of shape memory polymers. The gas permeability of shape memory polymers changes dramatically due to the microstructure movement of molecular chains. Moreover, its air permeability is adjusted with the change of external temperature and humidity. This shape memory polyurethane can be used to produce waterproof breathable fabric by non-porous lamination or coating, reducing the shortcomings such as blockage caused by micro-pores during use, and more importantly, the moisture permeability of the fabric can change with the change of human body temperature. Achieve "smart" effect. Make it suitable for all conditions to wear. For quick-drying clothes that are not waterproof, but can dry quickly when wet, their technical accountants are not so mysterious, in the end, they are nothing more than some chemical fiber fabrics. However, the same chemical fiber fabric, its constituent fibers are also different, some are acetate viscose, some are blended, but the overall characteristics are roughly the same: not waterproof, but also not absorbent, good air permeability. Once the body does not continue to sweat or no external factors to wet the clothing, it will dry quickly under the action of body temperature or wind, but the comfort level of its wearing can vary from fabric to fabric.

Waterproof, waterproof, moisture-permeable, breathable, windproof

Water splashing properties of fabric

Refers to the fabric after a special treatment of water splashing agent, its surface can make water droplets form a bead, will not produce penetration, diffusion and wet clothing, to achieve a lotus leaf like water splashing function (lotus effect). Anti-water processing is the use of this principle, with a variety of chemical materials on the surface of the cloth attached to a layer of ultrafine "needle bed", so that the tension on the surface of the cloth is less than the cohesion of water, so the water droplets will be formed after rolling away, rather than spreading wet. If this layer of needle bed structure is flattened or covered by oil, the water resistance of the fabric will be greatly reduced, and even begin to absorb water.

waterproof

Functional treatment to prevent water infiltration, the current waterproof treatment often uses waterproof film to prevent water molecules from going deep, but the film itself is too fragile, so it depends on the table cloth, film, and the inside to cooperate with each other in order to achieve the waterproof function. The waterproof ability is expressed by the water pressure resistance value, that is, the waterproof cloth with a fixed area to block the rising water pressure, when the surface oozes the third drop of water, it is the water pressure resistance value of the fabric, usually more than 1000mm can achieve the most basic waterproof ability.

soggy

Specifically refers to the function provided by the indirect breathable waterproof film, not to mention breathable, because it is two different breathable mechanisms, although ultimately can let sweat through the fabric to the outside world. Moisture permeability needs to be absorbed by the hydrophilic non-porous membrane into sweat molecules inside and move to the outside of the film in the way of micro-brown movement, affected by the difference in humidity pressure inside and outside the clothing, and then transformed into gas through the surface cloth to discharge, so it is called indirect breathability.

ventilate

In the waterproof breathable film, the function provided by the water-repellent porous waterproof film is to let the gas directly through the gap of the "water-repellent porous film", which is called direct breathable due to the faster speed.

parsnip

As long as the fabric has a certain windproof function, the closer the fabric is woven, the stronger the windproof ability. The wind resistance of poor permeability is generally strong. High quality fabric is the perfect combination of air permeability and wind resistance.