Development Of Single-guide Wet Sports Fabric

The mechanism of fabric single-guide wetness is the so-called differential capillary effect, that is to say, when the tightness of the fabric yarn, the density of the fabric, and the type of fiber used in the inner and outer layers of the fabric are the same, the fiber density of the inner layer is larger than that of the outer layer. At the linear density of the fibers, a capillary effect is added to the inner and outer layers of the fabric to provide an additional pressure differential. Under this pressure differential, the liquid moisture in the fabric automatically diffuses from the inner layer to the outer layer.

Fabric single guide wet implementation

There are many ways to achieve a single guide wetness of the fabric.

In theory, you can start from the following two aspects:

One is to increase the diffusion speed of the fabric surface and increase the evaporation area of sweat or moisture;

The second is to increase the capillary effect of the fabric, that is, the capillary effect is enhanced by the increase of the capillary channel.

This reduces the adhesion of the fabric to the human skin and improves comfort. In terms of specific operational methods, there are two ways to summarize them:

First, the fabric is subjected to micro-window finishing by the printing method. The main principle of the micro-window technology is to apply a hydrophobic additive to make the colorless printing on the inner surface of the fabric; the key point of the technology is that the printed pattern is irregularly arranged in a fine dot shape. The inner layer has both a hydrophobic portion and a hydrophilic surface, and moisture diffuses and penetrates through the hydrophilic portion to the outer layer, while the hydrophilic portion of the outer layer has strong hygroscopic property, and the inner and outer layers form a wicking pressure difference, resulting in the inner layer. The surface is only damply moist, keeps dry and the outer surface is damp.

The second is to make a point-contact double-knit fabric structure by using polypropylene fiber or waterproof yarn or other water-repellent fiber yarn on one side, and the other polyester filament to form a moisture absorbing layer on the other side.

The common point of the above two methods is that the inner layer of the fabric is a water repellent layer, which is a window layer for moisture absorption, and the outer layer of the fabric is a water diffusion layer, which layer is required to have good hygroscopicity to produce a good single guide. The wet effect, that is, the pressure difference between the inner and outer layers, and the greater the pressure difference, the greater the differential effect.

Practical effect

Through experiments, it was found that the fabric with single-wet wet function by printing method is more washable.

From the processing point of view, when the polypropylene and polyester are intertwined, the combination of the moisture wicking aid and the polyester is mainly chemical bonding, and the bonding with polypropylene is mainly electrostatic adsorption, the former is stronger than the latter. Bigger.

In terms of wicking height, there is no obvious difference between the structure of the sample and the structure involved in the fabric.

Two fiber properties

Polyester raw materials.

In addition to the presence of two terminal alcoholic hydroxyl groups in the polyester molecule, there are no other polar groups, and thus the polyester fiber is extremely poor in hydrophilicity. It is the ideal quick-drying material because of its poor hydrophilicity and no smell of water.

Usually, the cross section of the polyester yarn is round, so that the sweat gathers on the surface to form sweat beads, and there is no way to discharge it. At this time, we call it water repellent.

Thus, we changed the cross section of the polyester filament so that the surface had many fine grooves, and the sweat was discharged to the outside through the groove, and since the polyester had no hydrophilic groups, the inside of the fiber was still dry.

Therefore, it is only a porter of nature, and the way of water absorption is different. The water repellency of the polyester itself is unchanged, so the effect of quick drying can be achieved.

Polypropylene raw materials.

Polypropylene does not absorb water, moisture can not enter the fiber, so it will not wet, easy to transmit sweat. Before the sweat condenses, the sweat is removed from the skin without a wet sticky feeling.

Polypropylene allows sweat to move through the fabric and onto the outside of the fabric. The outer layer of sweat could not run onto the inner layer of polypropylene and was locked to the outer layer, forming a single-guide wet phenomenon.

In this way, I have a layer of sweat, and I have a layer of quick-drying clothes that will never stick to my skin.

In addition, there are good applications for antibacterial and warmth of polypropylene. There are many introductions to the dyed people.