Preparation process for fine denier and superfine denier polypropylene fibers

A polypropylene fiber and preparation technology, which is applied in the direction of single-component polypropylene artificial filament, fiber treatment, fiber chemical characteristics, etc., can solve the problem that the spinning process of spinning raw materials cannot achieve fine denier and ultra-fine denier production Requirements and other issues to achieve the effect of saving dyeing energy and water, good drapability, good wear resistance and resilience
CN101736416AInactive Publication Date: 2010-06-16绍兴前瞻化纤有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
绍兴前瞻化纤有限公司
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention mainly discloses a preparation process for fine denier and superfine denier polypropylene fibers, which comprises the following steps of: adopting a spinning special material of which the melting point is between 165 and 175 DEG C; in a spinning device, extruding and melting the spinning special material by a single screw extruder, wherein a melt flows evenly; performing spinning through a round or abnormal spinneret orifice of a spinneret plate of a spinning box, wherein the spinning speed is 2,200 miters per minute; cooling and oiling tows; and then performing hot drawing and winding to finally obtain the fine denier and superfine denier polypropylene fibers of 0.5 to 2 deniers, wherein the hot drawing temperature is between 45 and 105 DEG C, the drawing multiple is 1.5 to 4 times, and the winding speed is 80 meters per minute for overfeeding. The preparation process is a nuisanceless, environment-friendly, energy-saving and innovative process, and the finally obtained product has the advantages of light in texture, high strength, good abrasion resistance and elastic resilience, small static electricity, small coefficient of heat conductivity and good electrical insulating property.
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Description

technical field

[0001] The invention relates to the technical field of polypropylene fiber manufacture, in particular to a preparation process of fine denier and ultrafine denier polypropylene fiber. Background technique

[0002] At present, the chemical synthetic fibers used in my country's textile and garment industry are mainly polyester, nylon, acrylic, and spandex, and there are very few manufacturers using polypropylene (polypropylene fiber).

[0003] According to theoretical information and practical analysis, ordinary polypropylene fibers have not been widely used in the textile and garment industry due to their poor properties, such as strong waxy feel, hard hand feeling, and difficulty in dyeing.

[0004] Therefore, the modification of polypropylene fiber and the development of new varieties have become the main direction of polypropylene fiber development. A single filament with a fineness of 0.55 to 1.4 dtex (0.5 to 1.3 denier) is a fine denier, and a single fil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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