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Leather core structure fiber is a low melting point fiber produced by composite spinning of general polyester and specially designed polyester. It utilizes the property of melting and bonding after heat treatment of low melting point components to bond objects. He can melt at a lower temperature than regular polyester and bond with other fibers.
In the field of chemical fibers, sheath-core composite fiber is a common type of composite fiber characterized by its structure, which consists of two different polymers—one (the sheath or skin layer) encasing the other (the core layer), forming a "sheath covering core" configuration.
Sheath (Skin Layer): Typically exhibits higher density, orientation, and mechanical strength, influencing the fiber's hand feel, abrasion resistance, and dyeing properties.
Core Layer: Features a relatively looser structure and may possess distinct functional properties, such as moisture absorption, flame retardancy, or thermal bonding capability.
Concentric Sheath-Core Type: The core and sheath share the same center of mass, as seen in certain flame-retardant fibers (e.g., sheath made of conventional polyester, core made of flame-retardant polymer).
Eccentric Sheath-Core Type: The core and sheath are asymmetrical, imparting self-crimping properties to the fiber, making it suitable for elastic textiles and wool-like materials.
Thermal Bonding Fibers (e.g., ES fiber): The core is polypropylene (providing strength), while the sheath is polyethylene (enabling thermal adhesion), used in nonwoven fabric production.
Functional Fibers: Examples include Conductive fibers (sheath made of conventional polymer, core made of conductive material) and optical fibers (core made of high-refractive-index material).
Biomimetic Fibers: Such as artificial wool (mimicking the elasticity and bulkiness of natural fibers through sheath-core structure).
Sheath-core composite fibers are typically manufactured via composite spinning technology, where two polymer melts or solutions converge at the spinneret to form the nascent fiber. Subsequent processes like stretching and heat treatment are applied for final shaping.
Sheath-core composite fiber is a type of composite fiber composed of two polymers, offering unique physical and chemical properties. It finds extensive applications in textiles, medical fields, filtration materials, and more.
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Contact: kenny lam
Phone: 13927455431
Tel: 13927455431
Email: ct@3thread.com
Add: Add: No. 199, Lixin Road, south of the Second Ring Road, Shengze Town, Wujiang District, Jiangsu Province
