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Preparation method for oil-free polypropylene staple fibers with static electricity

A technology of polypropylene staple fiber and static electricity, which is applied in the field of polypropylene staple fiber preparation and can solve problems such as harmfulness to human health

Active Publication Date: 2013-09-25
JILIN PROVINCE HUAFANG ELECTROSTATIC MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after these spinning oils are attached to the fibers and made into filter cloths, they will enter the human body together with the filtered fluid food, medicine, water or air, and even enter the human blood, which is harmful to human health.

Method used

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  • Preparation method for oil-free polypropylene staple fibers with static electricity
  • Preparation method for oil-free polypropylene staple fibers with static electricity
  • Preparation method for oil-free polypropylene staple fibers with static electricity

Examples

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preparation example Construction

[0016] The present invention provides a kind of preparation method of polypropylene staple fiber without oil agent and with electrostatic function, the flow process is as follows figure 1 shown, including the following:

[0017] Add polypropylene chips with a polymelt index of 64g / 10min into the melting screw A as the skin layer. The temperature of each zone of the screw A is 160-170°C in zone 1, preferably 165°C, 170-180°C in zone 2, preferably 175°C, and 180°C in zone 3. ~190°C, preferably 183°C, zone 4 182-200°C, preferably 185°C, zone 5 185-230°C, preferably 188°C, zone 6 185-230°C, preferably 188°C, zone 7 185-230°C, preferably 188°C °C, the melt temperature of the melting screw A is preferably 160 °C to 230 °C, more preferably 188 °C, the number of revolutions is preferably 38 to 52 revolutions, more preferably 44 revolutions, and the current is preferably 66 to 120 amps, more preferably 97 amps;

[0018] Add polypropylene chips with a melt index of 32g / 10min into the ...

Embodiment 1

[0028] Add polypropylene slices with a melt index of 64g / 10min to melting screw A as the skin layer, and add polypropylene slices with a melt index of 32g / 10min to melt screw B as the core layer, and the skin layer and core layer are 40:60 by mass Add it to the metering pump of the spinning machine. After the fiber is formed, it passes through the oiling roller in the oil tank, the three-step drafting machine, the first setting machine, the crimping machine, the deoiling agent tank, and the second setting machine to obtain fiber bundles. The bundles pass through the fiber shaping machine, cutting machine, fiber finishing machine and baler to obtain oil-free polypropylene staple fibers with electrostatic function. The temperature in each zone of screw A is 160°C in zone 1, 170°C in zone 2, and 180°C in zone 3. Zone 4 is 182°C, Zone 5 is 185°C, Zone 6 is 185°C, Zone 7 is 185°C, the temperature of each zone of screw B is 230°C in Zone 1, Zone 2 is 240°C, Zone 3 is 250°C, Zone 4 is...

Embodiment 2

[0035] Add polypropylene slices with a melt index of 64g / 10min to melting screw A as the skin layer, and add polypropylene slices with a melt index of 32g / 10min to melt screw B as the core layer, and the skin layer and core layer are 50:50 by mass Add it to the metering pump of the spinning machine. After the fiber is formed, it passes through the oiling roller in the oil tank, the three-step drafting machine, the first setting machine, the crimping machine, the deoiling agent tank, and the second setting machine to obtain fiber bundles. The bundles pass through the fiber shaping machine, cutting machine, fiber finishing machine and baler to obtain oil-free polypropylene staple fibers with electrostatic function. The temperature in each zone of screw A is 165°C in zone 1, 175°C in zone 2, and 183°C in zone 3. Zone 4 is 185°C, Zone 5 is 188°C, Zone 6 is 188°C, Zone 7 is 188°C, the temperature of each zone of screw B is 238°C in Zone 1, Zone 2 is 245°C, Zone 3 is 253°C, Zone 4 is...

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Abstract

The invention provides a preparation method for oil-free polypropylene staple fibers with static electricity, and belongs to the field of polypropylene fiber preparation methods. According to the method, polypropylene slices are added into a melting screw A and a melting screw B to serve as a cover layer and a core layer respectively; the cover layer and the core layer are added into a metering pump of a spinning machine; formed fibers pass through an oil agent groove oiling rod, a three-step drawing machine, a first setting machine, a crimping machine, an oil agent removal groove and a second setting machine to become fiber bundles; the fiber bundles pass through a fiber shaping machine and a fiber cutting machine to become the oil-free polypropylene staple fibers with static electricity; melt indexes of the polypropylene slices added into the melting screw A and the melting screw B are 64g / 10min and 32g / 10min respectively; the temperature of the oil agent removal groove is 96 DEG C to 100 DEG C; the pressure of a sprayer nozzle of the fiber shaping machine is 3.3 to 3.7 kg / cm2. The polypropylene staple fibers acquired through the preparation method provided by the invention have the oil content of 0% and the specific resistance of 10<10> ohm*cm to 10<8>ohm*cm.

Description

technical field [0001] The invention belongs to the field of polypropylene fiber preparation methods, and in particular relates to a preparation method of oil-free polypropylene staple fibers with electrostatic functions. Background technique [0002] At present, the filter materials used in food production, pharmaceutical production bags and air filtration are mostly non-woven fabrics made of ordinary polypropylene staple fibers, and these polypropylene staple fibers are used in the production process to ensure the cohesion, clustering and rust resistance of the fibers. Spinning oils are generally used for smoothness and smoothness. The main components of these spinning oils are: alkylphenol polyoxyethylene ethers, pentaerythritol fatty acid esters, sorbitol fatty acid esters, alkyl phosphates, alkyl alcohol amides, etc. (Chemical Industry Press, Liu Cheng, Surface Active Agent Application Handbook, Second Edition P467-475,). However, after these spinning oils are attache...

Claims

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Application Information

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IPC IPC(8): D01D5/34D01D5/08D01D13/00
Inventor 邢天宝王纪超
Owner JILIN PROVINCE HUAFANG ELECTROSTATIC MATERIAL TECH CO LTD
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