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Preparation method of composite spinning skin-core structure polypropylene electrostatic staple fiber

A polypropylene, layer structure technology, applied in melt spinning, fiber treatment, conductive/antistatic filament manufacturing, etc.

Inactive Publication Date: 2017-06-30
JILIN PROVINCE HUAFANG ELECTROSTATIC MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the equipment and methods currently used to prepare electrostatic fiber webs cannot be removed due to static electricity, and there will be a very serious phenomenon of fiber web sticking. The production cost is high, so there is an urgent need for a new technical solution to solve this problem in the existing technology

Method used

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  • Preparation method of composite spinning skin-core structure polypropylene electrostatic staple fiber
  • Preparation method of composite spinning skin-core structure polypropylene electrostatic staple fiber
  • Preparation method of composite spinning skin-core structure polypropylene electrostatic staple fiber

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Embodiment Construction

[0016] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with the examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention rather than limiting the patent requirements of the present invention.

[0017] Please refer to figure 1 , a kind of preparation method of composite spinning sheath-core layer structure polypropylene electrostatic short fiber provided by the present invention, comprises as follows:

[0018] Step 1. Add polypropylene slices with a melt index of 72g / 10min into the melting screw A as the skin layer. The temperature of each zone of the melting screw A is: 160℃~170℃ in zone 1, 170℃~180℃ in zone 2, 180℃~ in zone 3 190℃, 182℃~200℃ in zone 4, 185℃~230℃ in zone 5, 185℃~230℃ in zone 6, 185℃~230℃ in zone 7; the melt temperature of melting screw A is 160℃~230℃; The number is 38 rpm to 52 ...

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Abstract

The preparation method of the polypropylene electrostatic short fiber with composite spinning sheath-core layer structure of the present invention belongs to the technical field of new industrial materials. The polypropylene slices are added to the melting screw A as the skin layer, and the polypropylene electrostatic masterbatch is added to the melting screw B as the core layer. , the cortex and core layer are added to the metering pump of the spinning machine according to the mass percentage (30-70): (30-70). The fiber tow is obtained after the crimping machine and the second drafting machine are shaped; the obtained fiber tow is passed through a fiber shaping machine and a cutting machine to obtain a composite spinning sheath-core layer structure polypropylene electrostatic short fiber. The invention adopts composite spinning sheath-core layer structure electrostatic fiber as low-melting point fiber. When processing hot-melt filter net and hot-rolled non-woven fabric, sticking sticks will not occur on the carding machine and web sticking will not occur on the web-laying machine due to static electricity.

Description

technical field [0001] The invention belongs to the technical field of new industrial materials, and in particular relates to a preparation method of composite spinning sheath-core structure polypropylene electrostatic short fibers. Background technique [0002] In the filter material industry, the application of primary, medium and high-efficiency filters and filters is increasing. Whether it is air purification or liquid purification, filters and filters are inseparable. Traditional air filter materials rely on the numerous fiber traps in the fiber filter and the specific surface area of ​​the fibers to absorb and capture dust particles in the air. In modern technology, traditional methods are only one aspect, and scientific technical methods use the electrostatic charge of the electrostatic fiber itself and the Coulomb force of the electrostatic field to more effectively absorb and capture dust particles in the air, and the effect is better than traditional methods. At ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/34D01F1/09D01F8/06
CPCD01D5/34D01D5/08D01F1/09D01F8/06
Inventor 冷纯廷邢天宝
Owner JILIN PROVINCE HUAFANG ELECTROSTATIC MATERIAL TECH CO LTD
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