Melting and direct-spinning superfine denier (4.6-5.5 denier) high-elastic modulus polyurethane fiber equipment

Abstract

The invention discloses melting and direct-spinning superfine denier (4.6-5.5 denier) high-elastic modulus polyurethane fiber equipment. The equipment is characterized in that the equipment comprises a purification tank, a reaction tank, a metering and conveying pump, a reaction kettle warming mixer, a static reaction kettle, a double-screw extruder, a melt filter, a thread spinning box, a component filter screen spinneret plate, an air duct cooling system, an oiling device, a godet guide thread stretching device, and a winder winding and forming device. The equipment has the advantages that the produced superfine denier polyurethane fibers have very small bending rigidity and very soft hand feel; the surface areas of the fibers are very large, so that the spreadability, the bulkiness and the heat retention property of fabrics are obviously improved, and the fabrics achieve a powerful cleaning function; when the superfine fibers are manufactured into super-high density fabrics, the size of gaps among the fibers is between the diameter of a water drop and the diameter of a water vapor droplet, so that the superfine fabrics have the waterproof and vapor-permeable effects; and when the superfine fibers are processed into fabrics like towels which can be wetted by water, the fabrics have high water absorbability, so that moisture of washed hair can be quickly absorbed by the towels, and the hair can be quickly dried. The equipment can be applied to various fields.

Description

technical field [0001] The invention relates to a production equipment of high elastic modulus spandex fiber with superfine denier of 4.6-5.5 denier by melt direct spinning, and belongs to the technical field of spandex fiber production. Background technique [0002] Spandex scientific name <polyutethane>Fiber, is a kind of highly elastic synthetic fiber developed in recent years, also known as: Spenders <spandex>Fiber, PTMG accounts for 80% (mass molecule) of the final polymer, known as the "second skin" of people. It is highly elastic and can be stretched 6-7 times, but it can quickly return to its original state as the tension disappears. Its molecular structure is a chain-like, soft and extensible polyurethane. Hard segments link together to enhance its properties. At present, it is widely used at home and abroad: chemical spinning, wet spinning and dry spinning. The above three spinning methods will cause environmental pollution in production, complex pro...

AI Technical Summary

Problems solved by technology

At present, the specifications of spandex fibers on the market include ultra-fine denier series (above 5D and below 20D) and conventional series (above 20D). There are only regular series of products, so the superfine denier series of melt direct spinning has always been a gap

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