Moisture-absorbing and quick-drying nylon double-sided fabric: full analysis of structure, function and application trends

Moisture-absorbing and quick-drying nylon double-sided fabric is a high-performance fabric that uses nylon fiber as the main body and spandex fiber as the elastic component, and combines a double-sided knitted structure with moisture-absorbing and quick-drying functional finishing. It combines the wear resistance and smoothness of nylon, the high elasticity and rebound characteristics of spandex, and the two-way wet-guide and quick-drying function. The front and back sides are smooth and dense without difference. It is the core fabric in the fields of sportswear, outdoor equipment, and underwear.

1. Principles: the dual logic of elastic support and moisture absorption and quick drying

1. Double-sided elastic structure principle The fabric is woven using a computer-controlled double-sided knitting machine, and the upper and lower needle beds are synchronously knitted to form a uniform and dense plain weave structure on both sides. There is no distinction between front and back, and the structural stability is far superior to that of single-sided fabrics. Spandex fiber is integrated into nylon yarn in the form of core-spun yarn. The high elongation at break of spandex (more than 500%) gives the fabric transverse and longitudinal bidirectional elasticity. The high-strength characteristics of nylon limit the over-stretching of spandex and prevent the fabric from loosening and deforming, achieving The effect of "high elastic fit + long-lasting styling".

2. The principle of moisture absorption and quick-drying function relies on two core technologies to achieve quick-drying effects: First, the special-shaped cross-section modification of nylon fiber, by designing the fiber cross-section into a cross-shaped and groove-shaped, using the capillary effect to quickly absorb sweat on the skin surface; second, the hydrophilic moisture-conducting finishing process, attaching hydrophilic groups to the surface of the fabric, accelerating the transfer of sweat from the inner layer of the fabric (the surface that contacts the skin) to the outer layer (the surface that contacts the air), and then quickly evaporates through the air flow. Compared with ordinary nylon double-sided fabrics, the moisture absorption and quick-drying efficiency is improved More than 40%.

2. Craftsmanship: the fine process from raw materials to finished products

1. The mainstream ratio of raw material ratio and yarn preparation is nylon 82%~88% + spandex 12%~18%. The spandex proportion can be adjusted according to needs; the special-shaped cross-section nylon filament is wrapped outside the spandex core yarn to make a nylon-spandex core-spun yarn, which not only improves the wear resistance and anti-snagging ability of the yarn, but also strengthens the capillary moisture conduction performance, while avoiding the stickiness caused by direct contact of spandex with the skin.

2. The double-sided weaving process uses a high-precision double-sided knitting machine, and inputs a preset program to control the upper and lower needle beds to form loops together to ensure that the thickness of both sides of the fabric is consistent and there is no difference in feel. The yarn tension is strictly controlled during the weaving process to prevent problems such as horizontal lines and uneven elasticity distribution in the fabric due to uneven tension, and to ensure the smoothness of the finished product.

3. Functional finishing and post-styling include pre-shrinking to control the fabric shrinkage within 3%; then padding and baking processes are used to fix the moisture-absorbing and quick-drying additives on the fiber surface to form a stable hydrophilic and moisture-conducting layer; and finally, high-temperature shaping and soft finishing are performed to fix the fabric size and elasticity, optimize the smoothness of the touch, and ensure that the moisture-absorbing and quick-drying function will not decay for a long time.

3. Application Category: Covering practical scenarios in multiple fields

Moisture-absorbing and quick-drying nylon double-sided fabric has highly elastic, quick-drying, and double-sided characteristics, and its application scenarios are highly targeted:

• Sportswear field: It is the fabric of choice for yoga wear, fitness wear, and running tights. It has high elasticity and can adapt to large-scale movements of the limbs. It has moisture-absorbing and quick-drying functions to keep the body surface dry during exercise and avoid stuffiness and stickiness;

• Outdoor equipment field: used to make mountaineering clothing linings and hiking quick-drying clothing. The double-sided dense structure can be slightly windproof, and the quick-drying function can cope with the changing outdoor climate and reduce the risk of catching cold caused by sweat retention;

• In the field of intimate underwear: making seamless underwear and sports underwear, the double-sided flat structure avoids marks, the moisture-absorbing and quick-drying properties improve daily wearing comfort, and the wear-resistant and anti-wrinkle advantages extend the service life of clothing;

• Children's clothing field: suitable for children's sportswear and swimsuits. The high elasticity and skin-friendly characteristics are in line with the active characteristics of children. The quick-drying function can quickly dry clothes and reduce the probability of catching a cold.

4. Maintenance: maintenance skills to extend the life of fabrics

1. For washing requirements, it is recommended to wash by hand or machine in cold water (water temperature ≤30°C). When washing in a machine, put it in a laundry bag and avoid washing it with rough clothes such as jeans to prevent snagging and wear; use neutral detergent, and prohibit alkaline detergents and bleaches to prevent damage to the moisture-absorbing quick-drying aid and spandex elasticity.

2. Drying and ironing: Dry in the shade or dry on the opposite side at low temperature to avoid sunlight exposure. Nylon is prone to fading and aging when exposed to the sun for a long time, and high temperature will destroy the quick-drying functional layer. Do not wring it out hard to prevent the fabric from deforming. The ironing temperature should be controlled at 120℃~140℃. Use a layer of wet cloth when ironing to avoid direct high-temperature contact with the fabric.

3. When storing, please fold and store it flat to avoid stretching and deforming the fabric caused by hanging for a long time; keep the storage environment dry and ventilated, and keep away from sharp objects to prevent snags from damaging the coil structure.

5. Technology: the core breakthrough direction of performance upgrades

1. Functional composite technology integrates antibacterial, anti-odor, sun protection (UPF50+), cooling and other functions. Through the composite finishing process, it gives the fabric more practical attributes on the basis of retaining moisture absorption and quick-drying properties, and expands applications in medical, outdoor and other subdivision fields.

2. Structural optimization technology develops a gradient double-sided structure, and adjusts the fabric density according to the needs of different parts of the garment, such as thickening the back to improve support, thinning the armpits to enhance breathability, and achieving functional zoning of the fabric.

3. The environmentally friendly raw material technology uses recycled nylon instead of virgin nylon, combined with bio-based spandex, to create an environmentally friendly moisture-absorbing and quick-drying nylon double-sided fabric; at the same time, low-temperature dyeing and water-saving finishing processes are promoted to reduce energy consumption and pollution in the production process.

6. Trend category: new direction of market development

1. Functional composite trend: Fabrics with single moisture-absorbing and quick-drying functions are gradually unable to meet market demand. Composite fabrics that integrate multiple functions such as antibacterial, sun protection, and warmth retention will become the mainstream choice for sports and outdoor clothing.

2. The trend of lightweighting has led to the development of ultra-thin nylon double-sided fabrics while maintaining elasticity and quick-drying properties. It is suitable for light summer sportswear and sun protection clothing, and expands the fabric's seasonal application range.

3. Environmental protection trend: The application proportion of environmentally friendly raw materials such as recycled nylon and bio-based spandex continues to increase, green production processes are gradually popularized, and low-carbon and environmentally friendly fabrics are more favored by brands and consumers.

With the core advantage of high elasticity and quick drying, moisture-absorbing and quick-drying nylon double-sided fabric is rapidly developing in the direction of functional compounding, lightweighting and environmental protection, driven by consumption upgrades and healthy sports concepts.