Coarse needlepoint fabric: full analysis of principles, processes, applications and trends

Coarse needlepoint fabrics use coarse stitches (usually 16G-24G) weft knitting process, a functional fabric with a uniform dot texture on the surface. The core principle lies in the synergy between the weaving process and the characteristics of the raw materials: the coarse gauge forms a loose and breathable coil structure, giving the fabric a thick and soft feel; the dot texture is through The difference in knitting needle arrangement or the matching of yarn thickness not only enhances the decoration, but also improves the structural stability of the fabric. The raw materials are mostly cotton, polyester, blended or added with a small amount of spandex, taking into account multiple needs such as comfort and wear resistance, and solving the pain points of ordinary coarse-needle fabrics with monotonous texture and easy deformation.

In terms of technology, the weft-knitted coarse-needle circular machine is used to weave, and the raw material ratio is first determined according to the purpose (common such as 100% cotton, polyester-cotton 65/35, cotton-ammonia blend, etc.), using medium-thick yarns to ensure clear texture; during weaving, special knitting needle arrangements are used (some needles are staggered or interspaced) to form regular dots on the surface of the fabric. Impurities are subsequently removed through preshrinking and desizing to avoid weaving tension. Deformation caused by force; in the dyeing process, reactive dyeing (cotton-based) or dispersion dyeing (polyester-based) is selected according to the raw materials to ensure uniform and firm color. Finally, anti-pilling and soft finishing are used to optimize the feel. The weaving speed and dyeing and finishing temperature are strictly controlled throughout the process to ensure the integrity of the texture and dimensional stability of the idea.

Application scenarios widely cover B2B Fields: In the clothing industry, it is suitable for sweaters, coats, children's clothing, home clothes, base layer shirts, etc. The thick and warm properties are suitable for autumn and winter wear, and the texture enhances the design; in the home textile field, it can be used in blankets, pillow cases, sofa covers, curtains, etc., which are soft, comfortable and highly decorative; in terms of industrial fabrics, it is suitable for outdoor tent linings, cold-proof glove fabrics, pet supplies fabrics, etc., taking into account durability and breathability; it can also be used as an auxiliary material or main material for shoes, hats, and bags to expand practical and decorative scenarios.

In terms of maintenance, the fabric supports machine washing and hand washing. It is recommended that the water temperature does not exceed 30°C, use neutral detergent, and avoid bleach and high-temperature drying (high temperatures can easily cause fabric shrinkage and texture deformation); when industrial batch washing, the speed needs to be controlled to prevent coil snagging and pilling; low-temperature ironing (the temperature does not exceed 110°C) and a cloth is required to avoid pressing the spot directly; allow natural ventilation when drying and avoid exposure to the sun. Daily storage should be kept away from sharp objects to prevent snagging; it has strong anti-wrinkle and wear-resistant properties, and can maintain stable shape and texture after multiple washings, and has low maintenance costs.

At the technical level, the core focus is on three major directions: optimization of the weaving process, which improves the uniformity and three-dimensionality of the dot texture through precise control of knitting needle spacing and weaving speed; modification and upgrade of raw materials, using combed cotton, recycled polyester and other raw materials, taking into account comfort and environmental protection, and adding spandex through the core-spun yarn process to enhance elastic stability; functional composite technology, such as incorporating moisture wicking, antibacterial, deodorant, antistatic and other finishing agents to expand application scenarios; testing procedures strictly follow GB/T 2660, GB/T 3921 and other standards to ensure that color fastness, abrasion resistance, shrinkage and other indicators meet the standards and meet the requirements of industrial grade use.

In terms of trends, environmental protection has become the mainstream, and the application proportion of recycled raw materials (recycled cotton, recycled polyester) is gradually increasing, in line with the concept of green production; the demand for functional customization is growing, such as warmth + waterproof, breathable + Composite functional fabrics such as anti-UV are highly favored; innovations and upgrades in textures and colors have led to an increase in small batch and personalized orders, adapting to the needs of fast fashion and niche brands; application scenarios have extended to outdoor cold-proof equipment, medical thermal care products, automotive interiors and other fields; at the same time, the application of digital weaving technology (such as intelligent circular knitting precision control) will further improve production efficiency and product consistency, and promote the development of fabrics in the direction of "environmental protection, multi-function, customization, and high performance".