1. Spandex core-spun yarn clothing reflects the beauty of the human body's curves.

The use of spandex yarn in clothing began with the three openings (neckline, cuffs, and leg openings) of knitted underwear. Previously, knitted underwear mostly used pure cotton materials, which lost elasticity after washing, causing the openings to deform, making them neither warm nor aesthetically pleasing. Since the advent of spandex, the ribbing at the three openings of knitted underwear has adopted a weaving process that inputs bare spandex yarn, greatly improving the elasticity of the openings. Generally, cotton-wrapped spandex, linen-wrapped spandex, and wool-wrapped spandex are used, and subsequently, various spandex-containing fabrics have become increasingly common, applied in elastic underwear, competition outfits, fitness clothing, etc. However, bare spandex yarn is usually fed into the fabric in the weft direction, so most spandex fabrics have good weft elasticity, while the warp elasticity is not very high, resulting in less snug-fitting clothing. With the application of core-spun yarn technology, the bidirectional elasticity of clothing fabrics has greatly improved, allowing the garments to not only reflect the beauty of the human body, especially for beauty-conscious women, but also to be comfortable and aesthetically pleasing. Currently, the focus is on producing high-end men's and women's underwear, fitness clothing, sportswear, competition outfits, and casual wear, with a very promising development outlook. This elevates people's dressing taste to a higher level. As for nylon-wrapped spandex and polyester-wrapped spandex core-spun yarn fabrics, they possess better elasticity, abrasion resistance, and vibrant colors, with strong resistance to washing and sun exposure, making them durable. They are ideal fabrics for making swimwear, competition outfits, training clothes, sportswear, practice clothes, cycling outfits, etc. Now, whether it is world-renowned brands or other clothing manufacturers, they all choose it as the preferred fabric for producing sports series clothing, with products distributed worldwide.

2. Spandex silk core-spun yarn woven into moisture-wicking fabric.

Due to silk's excellent hand feel, high breathability, and high moisture absorption, combined with spandex's good elasticity, the resulting core-spun yarn fabric made into clothing is of very high quality. This fabric has become the preferred material for contemporary beauty-conscious women. It offers good wearing comfort, a smooth hand feel, skin-friendliness, high breathability, high moisture-wicking, and moisture absorption, while fully showcasing the modern woman's body curves. It especially provides high-quality fabric for summer clothing. Therefore, it will be a focus for current and future production and development. Modern Americans require a large amount of clothing made with spandex core-spun yarn for exercise, and our country is a populous developing nation that has been growing rapidly in recent years. As people's living standards improve year by year, more and more people are joining the ranks of exercise and fitness. Therefore, the demand for core-spun yarn will continue to grow, and the development outlook is very optimistic. Overall, the application range of core-spun yarn products is extremely broad, greatly enriching people's lives, making clothing more colorful, beautiful, and comfortable. Moreover, it is rapidly developing towards a high-end direction. It is believed that in the near future, core-spun yarn will further beautify people's modern lives.

3. The application of spandex core-spun yarn in the sock industry.

Core-spun yarn utilizes the good elasticity and recovery of spandex, combined with the inherent advantages of other chemical fibers and natural fibers, allowing it to retain the original advantages of spandex while compensating for its shortcomings. The resulting core-spun yarn has a very promising development outlook. The types of spandex applications in the sock industry include: (1) Nylon-wrapped spandex, which currently dominates the sock market with core-spun yarn made from nylon-wrapped spandex. It is mainly divided into formal socks for men, women, and children, convenient socks, sports socks, and the currently popular ultra-thin transparent socks. Among these, the largest quantity is modern women's thigh-high socks, pantyhose, and the highly favored tummy control and lifting socks, as well as ultra-thin transparent socks. These are all made from core-spun yarn that combines the good elasticity of spandex with the high strength and abrasion resistance of nylon. The sales and prospects of these products are very promising, favorably promoting the development of nylon core-spun yarn; (2) Polyester-wrapped spandex, which, due to its lower price and durability, still has a certain market. Currently, it mainly produces convenient socks of various lengths, with a lower product grade. Due to difficulties in dyeing, its moisture absorption, breathability, and abrasion resistance are relatively poor. Therefore, its products are difficult to develop. To improve, the performance of polyester itself needs to be enhanced; (3) Cotton-wrapped spandex, used to make higher-end cotton socks. It has the good breathability, moisture absorption, and comfort of pure cotton fabrics, along with excellent elasticity. However, its development speed is not very fast due to production costs and durability constraints, and both washing and sun exposure fastness are relatively poor. With the improvement of technology and processes, high-end cotton-wrapped spandex socks will continue to enter the market, continuously meeting people's demands for comfort and high quality; (4) Wool-wrapped spandex, as people's living standards improve, their requirements for clothing are increasingly moving towards high-end. The pursuit of high quality, comfort, and warmth has formed a trend. This provides excellent opportunities and conditions for the emergence and development of wool-wrapped spandex core-spun yarn. It has produced wool socks made from wool-wrapped spandex core-spun yarn, which have excellent warmth, breathability, moisture-wicking, and elasticity, with a broad development outlook. Two to three years ago, due to the high price of spandex, its usage in nylon stockings was very low, and nylon relied more on color changes and pattern variations for innovation. With the significant price drop of spandex in recent years, its application in nylon stockings has become increasingly common, especially in women's long socks, where spandex is almost universally included, and spandex-wrapped stockings have begun to win people's hearts. To meet consumers' comfort requirements, the use of spandex-wrapped yarn may extend to the sock body and pairs of socks, while avoiding the impact of polyester stockings.

4. The proportion of spandex used in fabrics is continuously increasing.

In the early days, spandex was only used in swimwear, some underwear, socks, ribbed openings, and some sportswear. In recent years, with the improvement of people's living standards and the shift in consumption fashion, as well as advancements in spandex application technologies such as core-spun yarn, knitting, and weaving, the application scope and quantity of spandex have rapidly expanded and increased, making spandex textiles an international fashion consumer product. On one hand, new applications are continuously being developed for casual wear, children's clothing, men's clothing, wool sweaters, mid-to-high-end outerwear fabrics, women's spring and autumn clothing, medical products, etc. On the other hand, the proportion of spandex used in traditional products—socks, underwear, and sportswear—has greatly increased. Taking our country as an example, early T-shirts and underwear had only a small amount of spandex added, but in recent years, most of these products have incorporated spandex; outerwear has also commonly started to include spandex, and elastic fabrics have become popular; socks have also begun to widely use spandex. At the same time, the proportion of spandex in similar products is also increasing, and the use of spandex is developing both horizontally and vertically. It can be said that spandex is now ubiquitous in clothing and accessory products.