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

Inactive Publication Date: 2010-06-16
绍兴前瞻化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the selection of spinning raw materials and the control of spinning process cannot meet the requirements of fine denier and ultra-fine denier production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] H500 polypropylene resin sold by Shanghai Secco Petrochemical Co., Ltd. is used as the raw material, and the melting point temperature is 165°C to 170°C. After the raw materials are melted, add 0.2% color masterbatch, 8% anti-ultraviolet auxiliary agent, 6% anti-aging auxiliary agent, 0.04% flame retardant (epoxy resin is used in this embodiment), and 0.06% nano silver auxiliary auxiliary agent to form Spinning special materials. Special spinning materials are extruded and melted in a single-screw extruder, in which the temperature of the first screw zone is controlled at 218°C, the temperature of the second screw zone is controlled at 260°C, the temperature of the third screw zone is controlled at 295°C, the temperature of the fourth screw zone is controlled at 293°C, and the temperature of the fifth screw zone The temperature is controlled at 291°C, the single-screw extruder and the spinning box are connected by a flange, and the temperature of the flange and the box ...

Embodiment 2

[0028] H500 polypropylene resin sold by Shanghai Secco Petrochemical Co., Ltd. is used as the raw material, and the melting point temperature is 165°C to 170°C. After the raw materials are melted, add 0.3% color masterbatch, 8% anti-ultraviolet auxiliary agent, 6% anti-aging auxiliary agent, and 0.06% nano-silver auxiliary auxiliary agent to form a special spinning material. Special spinning materials are extruded and melted in a single-screw extruder. The temperature of the first screw zone is controlled at 218°C, the temperature of the second screw zone is controlled at 268°C, the temperature of the third screw zone is controlled at 296°C, the temperature of the fourth screw zone is controlled at 295°C, and the temperature of the fifth screw zone is controlled The temperature is controlled at 293°C, the single-screw extruder and the spinning box are connected by a flange, and the temperature of the flange and the box is maintained at 295°C with heat transfer oil.

[0029] Th...

Embodiment 3

[0034] H500 polypropylene resin sold by Shanghai Secco Petrochemical Co., Ltd. is used as the raw material, and the melting point temperature is 165°C to 170°C. After the raw materials are melted, 0.2% color masterbatch, 8% anti-ultraviolet additives, 6% anti-aging additives, 0.06% nano-silver, 0.04% polyethylene PE and other auxiliary additives are added to form spinning special materials. Special spinning materials are extruded and melted in a single-screw extruder, in which the temperature of the first screw zone is controlled at 218°C, the temperature of the second screw zone is controlled at 244°C, the temperature of the third screw zone is controlled at 278°C, the temperature of the fourth screw zone is controlled at 276°C, and the temperature of the fifth screw zone The temperature is controlled at 274°C, the single-screw extruder and the spinning box are connected by a flange, and the temperature of the flange and the box is maintained at 270°C with heat transfer oil. ...

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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.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/088D01D5/096D01D5/098D01F1/02D01F6/06D01F6/64
Inventor 唐岳海刘乐军
Owner 绍兴前瞻化纤有限公司
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