what is Four-Needle Six-Thread Technology in the factory

The Four-Needle Six-Thread technology, professionally known as "Fourneedle six lines" or "four-needle six-thread" in the textile industry, is an advanced sewing technique originating from a specialized curved-back seam sewing machine developed by the Japanese company Aoling. This technology is primarily employed in the knitting and apparel industry, particularly for the high-quality stitching of garments that require exceptional strength, durability, and aesthetic appeal.

Key Components and Features

Four Needles: The core of this technology lies in the use of four needles for stitching. These needles work in harmony to create intricate and secure seams.

Six Threads: As the name suggests, six threads are utilized in the stitching process. Specifically, two are upper threads, two are lower threads, and the remaining two serve as chain stitches (also known as overlock stitches). The chain stitches effectively prevent fraying and unraveling of fabric edges, enhancing the overall durability of the garment.

ISO607 Stitch Pattern: The Four-Needle Six-Thread technique produces the internationally recognized ISO607 stitch pattern, renowned for its dynamic appearance, high elasticity, flatness, and strength. This stitch pattern is particularly suitable for joining and reinforcing seams in garments made from elastic fabrics.

Specialized Equipment: The curved-back seam sewing machines designed for this technology feature a cylindrical base and walking foot pressers, making it easier to handle high-elasticity fabrics and intricate seams. These machines also come equipped with various presser foot and needle positions to accommodate different fabric types and stitching requirements.

Efficiency and Quality: The Four-Needle Six-Thread technology significantly streamlines the production process by eliminating the need for additional steps such as flat stitching and overlocking. This not only increases production efficiency but also ensures a superior quality of stitching that is unmatched by conventional sewing machines.

Advanced Features: Modern Four-Needle Six-Thread sewing machines are equipped with features like servo motors, computer controls, and adjustable tension dials for precise control over stitch length, thread tension, and differential feed. These features enable seamstresses to achieve precise and consistent results across different fabrics and projects.

Applications

The Four-Needle Six-Thread technology finds extensive use in the production of high-end clothing, particularly in the area of underwear and sportswear where elasticity and durability are paramount. It is also used for intricate stitching on collars, cuffs, hems, and other garment edges, providing a clean and professional finish.ConclusionIn summary, the Four-Needle Six-Thread technology represents a significant advancement in the textile and apparel industries. Its unique combination of precision, durability, and versatility has made it a popular choice among manufacturers of high-quality garments. With continuous innovations in sewing machinery and technology, the Four-Needle Six-Thread technique is poised to play an even more prominent role in shaping the future of fashion and textile production.